GENERAL ELECTRIC CO
SC 13D/A, 1997-04-17
ELECTRONIC & OTHER ELECTRICAL EQUIPMENT (NO COMPUTER EQUIP)
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<PAGE>
 
                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13D

                   Under the Securities Exchange Act of 1934

                               (Amendment No. 1)

                             Alliance Imaging, Inc.
                                (Name of Issuer)

                         Common Stock, $0.01 par value
                         (Title of Class of Securities)

                                  018606-10-3
                                 (CUSIP Number)

                            Robert E. Healing, Esq.
                            General Electric Company
                              3134 Easton Turnpike
                         Fairfield, Connecticut  06431
                                 (203) 373-2243


      (Name, address, including zip code, and telephone number, including
                        area code of agent for service)

                                   Copies to:

                             Ronald S. Beard, Esq.
                          Gibson, Dunn & Crutcher LLP
                             333 South Grand Avenue
                      Los Angeles, California  90071-3197
                                 (213) 229-7000

                                 March 26, 1997
                      (Date of Event which Requires Filing
                               of this Statement)


If the filing person has previously filed a statement on Schedule 13G to report
the acquisition which is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(b)(3) or (4), check the following box / /.

Check the following box if a fee is being paid with the statement / /.

<PAGE>

                                 SCHDEDULE 1
 
CUSIP NO. 018606-10-3                                      PAGE 2 OF    PAGES
 
- ------------------------------------------------------------------------------
      NAME OF REPORTING PERSON
 1    General Electric Company
      S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS
      (I.R.S. # 14-0689340)

- ------------------------------------------------------------------------------
      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
 2                                                              (a) [_]
                                                                (b) [_]
                                                 
- ------------------------------------------------------------------------------
      SEC USE ONLY
 3
 

- ------------------------------------------------------------------------------
      SOURCE OF FUNDS*
 4    
      Not Applicable

- ------------------------------------------------------------------------------
      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
 5    PURSUANT TO ITEMS 2(d) or 2(e)
                                                                           [ ]

- ------------------------------------------------------------------------------
      CITIZENSHIP OR PLACE OF ORGANIZATION
 6    
      New York

- ------------------------------------------------------------------------------
                          SOLE VOTING POWER
                     7   
     NUMBER OF            4,550,000
                          (see Item 5(a)) 
      SHARES       -----------------------------------------------------------
                          SHARED VOTING POWER
   BENEFICIALLY      8
                          0
     OWNED BY
                   -----------------------------------------------------------
       EACH               SOLE DISPOSITIVE POWER
                     9    
    REPORTING             4,550,000
                          (see Item 5(a))
      PERSON       -----------------------------------------------------------
                          SHARED DISPOSITIVE POWER
       WITH         10
                          0
- ------------------------------------------------------------------------------
      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
11    4,550,000 (see Item 5(a))

- ------------------------------------------------------------------------------
      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
12                  
                                                                           [ ]
 
- ------------------------------------------------------------------------------
      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
11    
      29.4%

- ------------------------------------------------------------------------------
      TYPE OF REPORTING PERSON*
12
      CO

- ------------------------------------------------------------------------------

<PAGE>
 
                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.

                        STATEMENT PURSUANT TO RULE 13d-1
                                     OF THE
                         GENERAL RULES AND REGULATIONS
                                   UNDER THE
                  SECURITIES EXCHANGE ACT OF 1934, AS AMENDED
                                        

<PAGE>
 
     This amendment amends a statement on Schedule 13D (the "Original 13D")
relating to the Common Stock, $0.01 par value per share ("Common Stock"), of
Alliance Imaging, Inc., a Delaware corporation ("Alliance"), filed with the
Securities and Exchange Commission on January 10, 1997.  This amendment reports
(i) the conversion of a bridge loan to Alliance described in the Original 13D
into shares of preferred stock of Alliance and (ii) certain related
transactions.

Item 2 - IDENTITY AND BACKGROUND
- --------------------------------

     This statement is filed by General Electric Company, a New York corporation
("GE") with principal executive offices located at 3135 Easton Turnpike,
Fairfield, Connecticut.  GE engages in providing a wide variety of industrial,
commercial and consumer products and services.

     For information with respect to the identity and background of each
director and executive officer of GE, see Schedule I attached hereto.

     During the last five years, neither GE nor, to its best knowledge, any
person identified on Schedule I has, except as set forth on Schedule II hereto
(a) been convicted in a criminal proceeding (excluding traffic violations or
similar misdemeanors) or (b) been a party to a civil proceeding of a judicial or
administrative body of competent jurisdiction as a result of which GE or such
person, as the case may be, was or is subject to a judgment, decree or final
order enjoining future violations of, or prohibiting or mandating activities
subject to, federal or state securities laws or finding any violation with
respect to such laws.

     To the best knowledge of GE, all persons identified on Schedule I are
United States citizens, except that Paolo Fresco, Vice Chairman of the Board and
an executive officer of GE, is an Italian citizen and Claudio X. Gonzalez, a
director of GE, is a Mexican citizen.

Item 3 - SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION
- ----------------------------------------------------------

     On December 31, 1996, GE acquired a Senior Bridge Note of Alliance, a copy
of which is attached as Exhibit 1 to the Original 13D (the "Note").  The Note
was issued to GE to evidence an unsecured loan made by GE in the amount of
$18,000,000 pursuant to a Bridge Loan Agreement dated as of December 31, 1996
(the "Bridge Loan Agreement") between GE and Alliance, a copy of which is
attached as Exhibit 2 to the Original 13D.  Reference is made to the Original
13D, which is hereby incorporated by reference.

     On March 26, 1997, GE exercised its option to convert the loan outstanding
under the Bridge Loan Agreement into 18,000 shares of Alliance's Series D 4%
Cumulative Redeemable Convertible Preferred Stock (the "Series D Preferred
Stock").  In addition, on March 26, 1997, GE exercised its option to convert
$9,000,000 in principal amount due to GE under the Note Purchase Agreement dated
as of April 14, 1989, as amended, into a senior note (the "Convertible Senior
Note") convertible, under certain circumstances, into shares of Alliance's
Series E 4% Cumulative Redeemable Convertible Preferred Stock (the "Series E
Preferred Stock").  A copy of the Stock Purchase Agreement dated as of March 25,
1997 (the "Stock Purchase Agreement") is attached hereto as Exhibit 1.  A copy
of the Eleventh Amendment to Note Purchase Agreement dated as of March 25, 1997
(the "Eleventh Amendment") is attached hereto as Exhibit 2.  A copy of the
Convertible Senior Note is attached hereto as Exhibit 3.  The rights, terms, and
privileges of the Series D Preferred Stock are set forth in an Amended
Certificate of Designation (the 

<PAGE>
 
"Series D Certificate of Designation"), a copy of which is attached hereto as
Exhibit 4. The rights, terms, and privileges of the Series E Preferred Stock are
set forth in an Amended Certificate of Designation (the "Series E Certificate of
Designation"), a copy of which is attached hereto as Exhibit 5.

     The foregoing response to this Item 3 is qualified in its entirety by
reference to the Stock Purchase Agreement, the Eleventh Amendment, the
Convertible Senior Note, the Series D Certificate of Designation, and the Series
E Certificate of Designation, each of which is hereby incorporated herein.

Item 4 - PURPOSE OF TRANSACTION
- -------------------------------

     GE has acquired its shares of Series D Preferred Stock and the Convertible
Senior Note (including, to the extent applicable, its rights thereunder to
acquire Common Stock of Alliance) as a possible future investment in the
ordinary course of business, and not with the purpose of changing control of
Alliance.

     GE may change its current intentions, acquire additional Common Stock or
rights that are convertible into or exercisable for Common Stock or take any
other action with respect to Alliance or any of its debt or equity securities in
any manner permitted by law.  Other than as set forth herein, GE has no current
plans which relate to or would result in any of the events described in Items
(a) through (j) of the instructions to this Item 4 of Schedule 13D.

Item 5 - INTEREST IN SECURITIES OF THE ISSUER
- ---------------------------------------------

     (a) The responses to Item 3 and Item 6 are incorporated by reference
herein.  Under the assumptions set forth in those Items, GE has the right to
acquire approximately 4,550,000 shares of Common Stock (representing 29.4% of
the shares of Common Stock that as a result of the issuance of the foregoing
shares would be outstanding, based on 10,927,471 shares of Common Stock reported
by Alliance as outstanding as of March 24, 1997), which number is subject to
adjustment under various circumstances.

     (b) GE has sole voting and investment power with respect to the securities
that are the subject of this Schedule 13D.

     (c) On November 6, 1996, Alliance issued to GE a warrant (the "Warrant") to
purchase an aggregate of 50,000 shares of Common Stock.  The Warrant has a term
of three years and an exercise price per share equal to $5.00 (subject to
certain adjustments).

     (d) No other person is known to GE to have the right to receive or the
power to direct the receipt of dividends from, or any proceeds from the sale of,
the securities that are the subject of this Schedule 13D.

     (e)  Not applicable.

Item 6 - CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT
- ------------------------------------------------------------------------------
     TO SECURITIES OF THE ISSUER
     ---------------------------

     The response to Item 3 is incorporated by reference herein.

<PAGE>
 
     Alliance has granted GE certain registration rights with respect to the
shares of Common Stock issuable upon exercise of the Warrant, and has agreed to
provide registration rights with respect to the shares of Common Stock issuable
upon conversion of the Series D Preferred Stock and the Series E Preferred
Stock.

Item 7 -  MATERIAL TO BE FILED AS EXHIBITS.
- -------------------------------------------

     (1) Stock Purchase Agreement dated as of March 25, 1997

     (2)  Eleventh Amendment to Note Purchase Agreement dated as of March 25,
          1997

     (3)  Convertible Note dated March 26, 1997

     (4)  Amended Certificate of Designation, Preferences and Rights of Series D
          4% Cumulative Redeemable Convertible Preferred Stock

     (5)  Amended Certificate of Designation, Preferences and Rights of Series E
          4% Cumulative Redeemable Convertible Preferred Stock

                                   SIGNATURE

     After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.

                GENERAL ELECTRIC COMPANY

     By: /s/

     Name:

     Title:

     Dated:  April 17, 1997

<PAGE>
 
                                  SCHEDULE I
 
                           GENERAL ELECTRIC COMPANY
                                   DIRECTORS
 
 
<TABLE> 
<CAPTION> 

                      PRESENT                            PRESENT
NAME                  BUSINESS ADDRESS              PRINCIPAL OCCUPATION
- ----                  ----------------              --------------------
<S>                 <C>                           <C> 
D.W. Calloway         PepsiCo, Inc.                 Retired Chairman of the Board
                      700 Anderson Hill Road        and Director, PepsiCo, Inc.
                      Purchase, NY 10577


S.S. Cathcart         222 Wisconsin Avenue          Director and Retired
                      Suite 103                     Chairman, Illinois Tool 
                      Lake Forest, IL 60045         Works


D.D. Dammerman        General Electric Company      Senior Vice President-
                      3135 Easton Turnpike          Finance, General
                      Fairfield, CT 06431           Electric Company


P. Fresco             General Electric Company      Vice Chairman of the
                      (U.S.A.)                      Board and Executive
                      3 Shortlands, Hammersmith     Officer, General
                      London, W6 8BX, England       Electric Company
 

C.X. Gonzalez         Kimberly-Clark de Mexico,     Chairman of the Board
                      S.A. de C.V.                  and Chief Executive
                      Jose Luis Lagrange 103,       Officer
                      Tercero Piso                  Kimberly-Clark de Mexico,
                      Colonia Los Morales           S.A. de C.V.
                      Mexico, D.F. 11510, Mexico


R.E. Mercer           General Electric Company      Retired Chairman of the
                      3135 Easton Turnpike          Board and former
                      Fairfield, CT 06431           Director, The Goodyear
                                                    Tire & Rubber Company


G.G. Michelson        Federated Department Stores   Former Member of the
                      151 West 34th Street          Board of Directors -
                      New York, NY 10001            Federated Department
                                                    Stores


S. Nunn               King and Spalding             Partner
                      191 Peachtree Street, N.E.
                      Atlanta, Georgia 30303

J.D. Opie             General Electric Company      Vice Chairman of the
                      3135 Easton Turnpike          Board and Executive
                      Fairfield, CT 06431           Officer

</TABLE> 

<PAGE>
 
                      GENERAL ELECTRIC COMPANY DIRECTORS
                                  (CONTINUED)
<TABLE>
<CAPTION>
 
 
                           PRESENT                   PRESENT
NAME                  BUSINESS ADDRESS         PRINCIPAL OCCUPATION
- ----                  ----------------         --------------------
<S>                <C>                         <C>
R.S. Penske        Penske Corporation          President, Penske
                   13400 Outer Drive, West     Corporation
                   Detroit, MI 48239-4001
 
B.S. Prieskel      Suite 3125                  Former Senior Vice
                   60 East 42nd Street         President, Motion
                   New York, NY 10165          Picture Associations
                                               of America

F.H.T. Rhodes      Cornell University          President Emeritus
                   3104 Snee Building          Cornell University
                   Ithaca, NY 14853


A.C. Sigler        Champion International      Retired Chairman of the
                    Corporation                Board and CEO
                   1 Champion Plaza            and former Director,
                   Stamford, CT 06921          Champion International
                                               Corporation

D.A. Warner III    J. P. Morgan & Co., Inc.    Chairman of the Board,
                   & Morgan Guaranty Trust Co. President, and Chief
                   60 Wall Street              Executive Officer,
                   New York, NY 10260          J.P. Morgan & Co.
                                               Incorporated and Morgan
                                               Guaranty Trust Company

J.F. Welch, Jr.    General Electric Company    Chairman of the Board
                   3135 Easton Turnpike        and Chief Executive   
                   Fairfield, CT 06431         Officer, General  
                                               Electric Company
</TABLE> 

                                  Citizenship
                                  -----------

                           C. X. Gonzalez        Mexico  
                           P. Fresco             Italy   
                           All Others            U.S.A.  



April 15, 1997

<PAGE>
 
                  GENERAL ELECTRIC COMPANY EXECUTIVE OFFICERS

<TABLE>
<CAPTION>
 
 
                              PRESENT                     PRESENT
NAME                     BUSINESS ADDRESS         PRINCIPAL OCCUPATION
- ----                     ----------------         --------------------
<S>                     <C>                        <C>
 
J.F. Welch, Jr.         General Electric Company     Chairman of the Board
                        3135 Easton Turnpike         and Chief Executive
                        Fairfield, CT 06431          Officer
 
P. Fresco               General Electric Company     Vice Chairman of the
                        (U.S.A.)                     Board and Executive
                        3 Shortlands, Hammersmith    Officer
                        London, W6 8BX, England
 
P.D. Ameen              General Electric Company     Vice President and
                        3135 Easton Turnpike         Comptroller
                        Fairfield, CT 06431
 
J.R. Bunt               General Electric Company     Vice President and
                        3135 Easton Turnpike         Treasurer
                        Fairfield, CT 06431
 
D.L. Calhoun            General Electric Company     Vice President -
                        2901 East Lake Road          GE Transportation
                        Erie, PA 16531               Systems
 
W.J. Conaty             General Electric Company     Senior Vice President -
                        3135 Easton Turnpike         Human Resources
                        Fairfield, CT 06431
 
D. M. Cote              General Electric Company     Vice President -
                        3135 Easton Turnpike         GE Appliances
                        Fairfield, CT 06431
 
D.D. Dammerman          General Electric Company     Senior Vice President -
                        3135 Easton Turnpike         Finance
                        Fairfield, CT 06431
 
L.S. Edelheit           General Electric Company     Senior Vice President -
                        P. O. Box 8                  Corporate Research
                        Schenectady, NY 12301        and Development
 
B.W. Heineman, Jr.      General Electric Company     Senior Vice President -
                        3135 Easton Turnpike         General Counsel
                        Fairfield, CT 06431          and Secretary
 
J. R. Immelt            General Electric Company     Senior Vice President -
                        P.O. Box 414                 GE Medical Systems
                        Milwaukee, WI 53201
 
W.J. Lansing            General Electric Company     Vice President-
                        3135 Easton Turnpike         Corporate Business
                        Fairfield, CT 06431          Development
 
W.J. McNerney, Jr.      General Electric Company     Senior Vice President -
                        Nela Park                    GE Lighting
                        Cleveland, OH  44122

</TABLE> 

<PAGE>
 
            GENERAL ELECTRIC COMPANY EXECUTIVE OFFICERS (Continued)
<TABLE>
<CAPTION>
 
                        PRESENT                    PRESENT
NAME                BUSINESS ADDRESS          PRINCIPAL OCCUPATION
- ----                ----------------          --------------------
<S>                <C>                        <C>
 
E.F. Murphy        General Electric Company   Senior Vice President -
                   1 Newmann Way              GE Aircraft Engines
                   Cincinnati, OH 05215
 
R.L. Nardelli      General Electric Company   Senior Vice President -
                   1 River Road               GE Power Systems
                   Schenectady, NY 12345
 
R.W. Nelson        General Electric Company   Vice President -
                   3135 Easton Turnpike       Corporate Financial
                   Fairfield, CT 06431        Planning and Analysis
 
J.D. Opie          General Electric Company   Vice Chairman of the
                   3135 Easton Turnpike       Board and Executive
                   Fairfield, CT 06431        Officer
 
G.M. Reiner        General Electric Company   Senior Vice President -
                   3135 Easton Turnpike       Chief Information
                   Fairfield, CT 06431        Officer
 
G.L. Rogers        General Electric Company   Senior Vice President -
                   1 Plastics Avenue          GE Plastics
                   Pittsfield, MA 01201
 
J.W. Rogers        General Electric Company   Vice President -
                   1635 Broadway              GE Motors
                   Fort Wayne, IN 46801
 
L.G. Trotter       General Electric Company   Vice President -
                   41 Woodford Avenue         GE Electrical
                   Plainville, CT 06062       Distribution and
                                              Control

</TABLE> 

                                  Citizenship
                                  -----------

                   P. Fresco             Italy
                   All Others            U.S.A.



April 16, 1997

<PAGE>
 
                             RECENT GE CONVICTIONS
                             ---------------------



1.   United States ex rel. Taxpayers Against Fraud and Chester L. Walsh v.
     ---------------------------------------------------------------------
     General Electric Company
     ------------------------

     On November 15, 1990, an action under the federal False Claims Act, 31
U.S.C. (S)(S) 3729-32, was filed under seal against General Electric Company
("GE") in the United States District Court for the Southern District of Ohio.
The qui tam action, brought by an organization called Taxpayers Against Fraud
and an employee of GE's Aircraft Engines division ("GEAE"), alleged that GEAE,
in connection with its sales of F110 aircraft engines and support equipment to
Israel, made false statements to the Israeli Ministry of Defense (MoD), causing
MoD to submit false claims to the United States Department of Defense under the
Foreign Military Sales Program. Senior GE management became aware of possible
misconduct in GEAE's Israeli F110 program in December 1990. Before learning of
the sealed qui tam suit, GE immediately made a voluntary disclosure to the
Departments of Defense and Justice, promised full cooperation and restitution,
and began an internal investigation. In August 1991, the federal court action
was unsealed, and the Department of Justice intervened and took over
responsibility for the case.

     On July 22, 1992, after GE had completed its investigation and made a
complete factual disclosure to the U.S. government as part of settlement
discussions, the United States and GE executed a settlement agreement and filed
a stipulation dismissing the civil action. Without admitting or denying the
allegations in the complaint, GE agreed to pay $59.5 million in full settlement
of the civil fraud claims. Also on July 22, 1992, in connection with the same
matter, the United States filed a four count information charging GE with
violations of 18 U.S.C. (S) 287 (submitting false claims against the United
States), 18 U.S.C. (S)1957 (engaging in monetary transactions in criminally
derived property), and 15 U.S.C. (S)(S) 78m(b)(2)(A) and 78ff(a) (inaccurate
books and records), and 18 U.S.C. (S) 371 (conspiracy to defraud the United
States and to commit offenses against the United States). The same day, GE and
the United States entered a plea agreement in which GE agreed to waive
indictment, plead guilty to the information, and pay a fine of $9.5 million. GE
was that day sentenced by the federal court in accordance with the plea
agreement.


2.   Her Majesty's Inspectorate of Pollution v. IGE Medical Systems Limited
     ----------------------------------------------------------------------
     (St. Albans Magistrates Court, St. Albans, Hertsfordshire, England, Case
     No. 04/00320181)

     In April, 1994, GEMS' U.K. subsidiary, IGE Medical Systems Limited (IGEMS)
discovered the loss of a radioactive barium source at the Radlett, England
facility.  The lost source, used to calibrate nuclear camera detectors, emits a
very low level of radiation.  IGEMS immediately reported the loss as required by
the U.K. Radioactive Substances Act.  An ensuing investigation, conducted in
cooperation with government authorities, failed to locate the source.  On July
21, 1994, Her Majesty's Inspectorate of Pollution (HMIP) charged IGEMS with
violating the Radioactive Substances Act by failing to comply with a condition
of registration.  The Act provides that a registrant like IGEMS, which "does not
comply with a limitation or condition subject to which (it) is so registered ...
shall be guilty of (a criminal) offense."  Condition 7 of IGEMS' registration
states that it "shall so far as is reasonably practicable prevent ... loss of
any registered source."

     At the beginning of trial on February 24, 1995, IGEMS entered a guilty plea
and agreed to pay of fine of 5,000(Pounds) and assessed costs of 5,754(Pounds).
The prosecutors presentation focused primarily on the 1991 change in internal
ITEMS procedures and, in particular, the source logging procedure. The
prosecutor complimented ITEMS' investigation and efforts to locate the source
and advised the court that ITEMS had no previous violations of the Radioactive
Substances Act. He also told the court that the Radlett plant had been
highlighted as an exemplary facility to HIMP inspectors as part of their
training. In mitigation, ITEMS emphasized the significant infrastructure 

<PAGE>
 
and expense undertaken by ITEMS to provide security for radiation sources and
the significant effort and expense incurred in attempting to locate the missing
source.


3.  Except for the foregoing, GE has not and, to the best of GE's knowledge,
none of the directors and executive officers of GE has been, during the last
five years, convicted in a criminal proceeding (excluding traffic violations or
similar misdemeanors).

4.   GE has not and, to the best of GE's knowledge, none of the directors and
executive officers of GE has been, during the last five years, a party to a
civil proceeding of a judicial or administrative body of competent jurisdiction
and as a result of such proceeding was or is subject to a judgment, decree, or
final order enjoining future violations of, or prohibiting or mandating
activities subject to, federal or state securities laws or finding any violation
with respect to such laws.


<PAGE>
 
                                                                       EXHIBIT 1

                                                                  EXECUTION COPY







                           STOCK PURCHASE AGREEMENT
                           ------------------------
<PAGE>
 
                               TABLE OF CONTENTS
                               -----------------
<TABLE>
<CAPTION>
                                                                                                 PAGE
                                                                                                 ----
<S>                                                                                             <C>
1.  DEFINITIONS................................................................................     1
    -----------

2.  PURCHASE AND SALE OF SERIES D PREFERRED STOCK..............................................    13
    ---------------------------------------------
        2.1 AUTHORIZATION......................................................................    13
        2.2 SALE AND ISSUANCE OF CERTAIN SHARES OF SERIES D PREFERRED STOCK....................    13

3.  CLOSING; DELIVERIES; FORM OF CONSIDERATION.................................................    14
    ------------------------------------------
        3.1 THE CLOSING........................................................................    14
        3.2 DELIVERIES.........................................................................    14
        3.3 FORM OF CONSIDERATION..............................................................    14

4.  REPRESENTATIONS AND WARRANTIES OF THE COMPANY..............................................    14
    ---------------------------------------------
        4.1 ORGANIZATION, GOOD STANDING AND QUALIFICATION......................................    14
        4.2 CAPITALIZATION.....................................................................    15
        4.3 SUBSIDIARIES.......................................................................    16
        4.4 AUTHORIZATION......................................................................    17
        4.5 GOVERNMENTAL AND OTHER CONSENTS; NO VIOLATION......................................    17
        4.6 LITIGATION.........................................................................    18
        4.7 FINANCIAL STATEMENTS AND REPORTS...................................................    18
        4.8 PROPRIETARY INFORMATION............................................................    19
        4.9 REGISTRATION RIGHTS................................................................    19
        4.10 CONTRACTS.........................................................................    19
        4.11 ABSENCE OF CHANGES................................................................    20
        4.12 INTELLECTUAL PROPERTY.............................................................    21
        4.13 COMPLIANCE WITH OTHER INSTRUMENTS.................................................    21
        4.14 COMPLIANCE WITH LAW; APPROVALS....................................................    22
        4.14 COMPLIANCE WITH LAW; APPROVALS....................................................    22
        4.15 TITLE TO ASSETS...................................................................    23
        4.16 PLANT, PROPERTY, AND EQUIPMENT....................................................    23
        4.17 ACCOUNTS AND NOTES RECEIVABLE.....................................................    23
        4.18 INDEBTEDNESS......................................................................    24
        4.19 REAL PROPERTY.....................................................................    24
        4.20 EMPLOYEE PLANS AND ARRANGEMENTS...................................................    25
        4.21 EMPLOYEES.........................................................................    27
        4.22 INSURANCE.........................................................................    27
        4.23 ENVIRONMENTAL COMPLIANCE..........................................................    28
        4.24 NO UNDISCLOSED LIABILITIES........................................................    28
        4.25 TAXES.............................................................................    29
        4.26 NO RESEARCH GRANTS................................................................    30
        4.27 CERTAIN REGULATORY MATTERS........................................................    31
        4.28 TRANSACTIONS WITH AFFILIATES......................................................    31
        4.29 REPORTS; SEC DOCUMENTS............................................................    31
        4.30 DISCLOSURE........................................................................    31
        4.31 BROKERS...........................................................................    31
        4.32 CERTAIN ADDITIONAL REGULATORY MATTERS.............................................    32
        4.33 MEDICARE/MEDICAID PARTICIPATION...................................................    33

5.  REPRESENTATIONS AND WARRANTIES OF THE INVESTOR.............................................    34
    ----------------------------------------------
        5.1 ACCREDITED INVESTOR................................................................    34
        5.2 INVESTMENT INTENT..................................................................    34
        5.3 CERTAIN SECURITIES LAW ISSUES......................................................    34
        5.4 AUTHORIZATION......................................................................    34
</TABLE> 
                                       i
<PAGE>
 
<TABLE> 
<S>                                                                                               <C> 
        5.5 BROKERS............................................................................    34

6.  CONDITIONS TO INVESTOR'S OBLIGATIONS AT CLOSING............................................    34
    -----------------------------------------------
        6.1 REPRESENTATIONS AND WARRANTIES.....................................................    35
        6.2 PERFORMANCE........................................................................    35
        6.3 NO INJUNCTION......................................................................    35
        6.4 QUALIFICATIONS; LEGAL INVESTMENT...................................................    35
        6.5 COMPLETION OF REVIEW OF THE COMPANY................................................    35
        6.6 CERTIFICATES OF DESIGNATION........................................................    35
        6.7 CLOSING DOCUMENTS..................................................................    36
        6.9 OPINIONS OF COMPANY COUNSEL........................................................    36
        6.10 MATERIAL ADVERSE CHANGES..........................................................    36

7.  CONDITIONS OF THE COMPANY'S OBLIGATIONS AT CLOSING.........................................    36
    --------------------------------------------------
        7.1 REPRESENTATIONS AND WARRANTIES.....................................................    36
        7.2 PERFORMANCE........................................................................    37
        7.3 NO INJUNCTION......................................................................    37
        7.4 QUALIFICATIONS; LEGAL INVESTMENT...................................................    37

8.  COVENANTS..................................................................................    37
    ---------
        8.1 BEST EFFORTS.......................................................................    37
        8.2 CONVERSION STOCK...................................................................    37
        8.3 RESTRICTIVE AGREEMENTS PROHIBITED..................................................    38
        8.4 COMPLIANCE WITH ELEVENTH AMENDMENT AND RESTATED NOTE...............................    38
        8.5 CERTAIN REGULATORY MATTERS.........................................................    38
        8.6 FINANCIAL STATEMENTS AND INFORMATION...............................................    39
        8.7 MERGER.............................................................................    40
        8.8 LIMITATIONS ON LIENS...............................................................    42
        8.9 INDEBTEDNESS.......................................................................    44
        8.10 INVESTMENTS.......................................................................    45
        8.11 CAPITAL EXPENDITURES..............................................................    45
        8.12 TRANSACTIONS WITH AFFILIATES......................................................    46
        8.13 LIMITATION ON DISPOSITION OF ASSETS...............................................    46
        8.14 LIMITATION RELATING TO SUBSIDIARIES...............................................    47
        8.15 LIMITATIONS ON LEASES.............................................................    47
        8.16 BOARD OBSERVATION RIGHTS..........................................................    48
        8.17 NO DEFAULTS UNDER FUNDED DEBT DOCUMENTS...........................................    48
        8.18 NO CHANGE IN BUSINESS.............................................................    49

9.  INDEMNIFICATION............................................................................    49
    ---------------
        9.1 SURVIVAL OF REPRESENTATIONS, WARRANTIES AND COVENANTS..............................    49
        9.2 INDEMNIFICATION....................................................................    49
        9.3 CLAIMS FOR INDEMNIFICATION.........................................................    50
        9.4 DEFENSE BY THE COMPANY.............................................................    50
        9.5 MATERIALITY........................................................................    51

10. RESTRICTIONS ON TRANSFERABILITY OF SECURITIES; COMPLIANCE WITH SECURITIES
    -------------------------------------------------------------------------
     ACT; REGISTRATION RIGHTS..................................................................    51
     ------------------------
        10.1 RESTRICTIONS ON TRANSFERABILITY...................................................    51
        10.2 RESTRICTIVE LEGEND................................................................    51
        10.3 REQUESTED REGISTRATION............................................................    51
        10.4 COMPANY REGISTRATION..............................................................    52
        10.5 REGISTRATION ON FORM S-3..........................................................    53
        10.6 LIMITATIONS ON SUBSEQUENT REGISTRATION RIGHTS.....................................    54
        10.7 EXPENSES OF REGISTRATION..........................................................    54
        10.8 SECURITIES INDEMNIFICATION........................................................    54
</TABLE> 
                                      ii
<PAGE>
 
<TABLE> 
<S>                                                                                              <C> 
        10.9 TRANSFER OF REGISTRATION RIGHTS...................................................    55

11. MISCELLANEOUS..............................................................................    55
    -------------
        11.1 EXPENSES..........................................................................    55
        11.2 PUBLICITY.........................................................................    55
        11.3 SUCCESSORS AND ASSIGNS............................................................    55
        11.4 GOVERNING LAW.....................................................................    55
        11.5 COUNTERPARTS......................................................................    56
        11.6 TITLES AND SUBTITLES..............................................................    56
        11.7 NOTICES...........................................................................    56
        11.8 AMENDMENTS AND WAIVERS............................................................    56
        11.9 SEVERABILITY......................................................................    56
        11.10 ENTIRE AGREEMENT.................................................................    56
</TABLE>

                                      iii
<PAGE>
 

                            STOCK PURCHASE AGREEMENT
                            ------------------------

          THIS STOCK PURCHASE AGREEMENT (the "Agreement") is made as of the 25th
day of March, 1997, by and among Alliance Imaging, Inc., a Delaware corporation
(the "Company") and General Electric Company, a New York Corporation acting
through GE Medical Systems (the "Investor").  Certain of the capitalized terms
used in the Agreement are defined in Section 1 hereof.

                                R E C I T A L S
                                ---------------

          WHEREAS, the Investor desires to purchase certain securities of the
Company on the terms and conditions set forth herein;

          WHEREAS, the Company desires to sell to the Investor such securities
on the terms and conditions set forth herein;

          NOW, THEREFORE, in consideration of the foregoing recitals, the terms
and provisions set forth herein, and other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the parties hereto
agree as follows:

1.        DEFINITIONS.
          ----------- 

          The following terms have the following meanings when used in this
Agreement, unless the context expressly or by necessary implication otherwise
requires:

          "Affiliate" shall mean, with respect to any Person, any other Person
which directly or indirectly controls or is controlled by or is under common
control with such Person, and, with respect to the Company only, includes any
other Person with whom the Company has any joint venture, partnership, or other
shared investment interest.  As used in this definition, "control" (including
its correlative meanings, "controlled by" and "under common control with") shall
mean possession, directly or indirectly, of power to (i) direct or cause the
direction of management or policies of such Person (whether through ownership of
securities or partnership or other ownership interests, by contract or
otherwise) or (ii) vote 10% or more of the securities having ordinary voting
power for the election of directors of such Person.

          "Aggregate Purchase Price" is defined in Section 2.2.

          "Agreement" is defined in the preamble hereto.

          "Applicable Law" means, with respect to any Person, any federal, state
or local statute, law, ordinance, rule, administrative interpretation,
regulation, order, writ, injunction, directive, judgment, decree or other
requirement of any Governmental Authority (including any Environmental Law)
applicable to such Person or any of its Affiliates or Plan Affiliates or any of
their respective properties, assets, officers, directors, employees, consultants
or agents.

                                       1
<PAGE>
 
          "Approvals" is defined in Section 4.14(d).

          "Average Market Price" of a share of Common Stock at any date shall
mean the average of the daily closing prices per share of Common Stock for
twenty-five (25) consecutive trading days ending on the trading day immediately
preceding such date (as adjusted for any stock dividend, split, combination or
reclassification that took effect during such 25 day period).  The closing price
for each trading day shall mean the closing sales price on such trading day of a
share of Common Stock on the principal national securities exchange or automated
quotation system on which the shares of Common Stock are listed or admitted to
trading.

          "Benefit Arrangement" means any material benefit arrangement that is
not an Employee Benefit Plan, including (i) each employment, consulting or
change of control agreement, (ii) each arrangement providing for fringe
benefits, insurance coverage or workers' compensation benefits, (iii) each
bonus, incentive, or performance pay or deferred bonus, incentive, or
performance pay arrangement, (iv) each arrangement providing any termination
allowance, severance or similar benefits, (v) each equity compensation plan,
(vi) each deferred compensation plan and (vii) each compensation policy and
practice maintained by the Company covering the employees, former employees,
officers, former officers, directors and former directors of the Company, and
the beneficiaries of any of them.

          "Benefit Plan" means an Employee Benefit Plan or Benefit Arrangement.

          "Board of Directors" shall mean, as to any corporation. the Board of
Directors of such corporation or a committee of such corporation having
authority to exercise, when the Board of Directors is not in session, the powers
of the Board of Directors (subject to any designated limitations) in the
management of the business and affairs of such corporation.

          "Bridge Loan Agreement" means the Bridge Loan Agreement between the
Company and the Investor dated as of December 31, 1996.

          "Business Day" means each day other than a Saturday, Sunday or other
day on which commercial banks in San Francisco, California are authorized or
required by law to close.  Unless specifically referenced in this Agreement as a
Business Day, all references to "days" shall be to calendar days.

          "Capital Expenditure Adjustment Amount" shall mean, for any Capital
Expenditure Period corresponding to a capital raising transaction described in
clause (i) following, the positive amount, if any, of (i) net cash proceeds from
issuances of Common Stock or other securities convertible into Common Stock or
other non-redeemable equity securities of the Company minus (ii) cash expended
                                                      -----                   
during such Capital Expenditure Period by the Company or its Majority-Owned
Subsidiaries in connection with business acquisitions (including without
limitation acquisitions of substantially all of the assets of a Person permitted
under this Agreement); provided, however, that any cash expenditures
                       --------  -------                            
constituting Capital Expenditures for such Capital Expenditure Period that are
already included in the calculation of the total amount of Capital Expenditures
for such Capital Expenditure Period for purposes 

                                       2
<PAGE>
 
of determining compliance with Section 8.11 hereof (without considering the
Capital Expenditure Adjustment Amount) shall only be included once in such total
amount, regardless of whether such Capital Expenditures arise in connection with
a business acquisition. If the Company could properly include a Capital
Expenditure within the general limitation under Section 8.11 hereof and/or under
an available Capital Expenditure Adjustment Amount, the Company shall be
entitled in its discretion to select the allocation of such Capital Expenditure.
To the extent that amounts expended are included under clause (ii) of the
foregoing definition, such amounts shall be deducted from the amount described
in clause (i) on a chronological basis (i.e., the first such amount deducted
will be the first of such amounts expended, and so on).

          "Capital Expenditure Period" means, with respect to each capital
raising transaction described in clause (i) of the definition of Capital
Expenditure Adjustment Amount, the two-year period beginning with the date that
net proceeds with respect to such transaction are received by the Company.

          "Capital Expenditures" shall mean, for any period, expenditures made
by the Company or any of its Majority-Owned Subsidiaries to acquire or construct
fixed assets, plant and equipment (including additions, improvements, upgrades
and replacements, but excluding repairs) during such period calculated in
accordance with GAAP.

          "Capital Lease" shall mean any lease by a Person of any property
(whether real, personal or mixed) which, in conformity with GAAP (including
Statement of Financial Accounting Standards No. 13 of the Financial Accounting
Standards Board), is accounted for as a capital lease on the balance sheet of
such Person.

          "Capital Lease Obligations" shall mean, as to any Person, the
obligations of such Person to pay rent or other amounts under a Capital Lease
and, for purposes of this Agreement, the amount of such obligations shall be the
capitalized amount thereof, determined in accordance with GAAP (including
Statement of Financial Accounting Standards No. 13 of the Financial Accounting
Standards Board).

          "Capital Stock" of any Person shall mean the beneficial ownership
interests in said Person, including, without limitation, the capital stock of
any Person that is a corporation and the partnership interests (general and
limited) in any Person that is a partnership.

          "Certificate of Incorporation" means the Restated Certificate of
Incorporation of the Company, including all amendments thereto, as in effect on
the date hereof.

          "CHAMPUS" is defined in Section 4.32.

          "Charter Documents" has the meaning set forth in Section 4.13.

          "Closing" has the meaning set forth in Section 3.1

          "Closing Date" has the meaning set forth in Section 3.1.

                                       3
<PAGE>
 
          "COBRA" means the Consolidated Omnibus Budget Reconciliation Act of
1985, as amended, as set forth in Section 4980B of the Code and Part 6 of Title
I of ERISA.

          "Code" means the Internal Revenue Code of 1986, as amended.

          "Collateral Agent" shall mean First Security Bank of Utah, N.A., as
collateral agent under the Note Purchase Agreement, or any successor thereto,
with respect to the Company's Senior Secured Notes.

          "Collateral Pool" shall mean the Eligible First Lien Equipment, the
Eligible Second Lien Equipment and the Cash Equivalent Collateral (all as
defined in the Note Purchase Agreement) pledged to the Collateral Agent, on
behalf of the holders of the Senior Secured Notes, pursuant to the Note Purchase
Agreement and the Security Documents (as defined in the Note Purchase
Agreement), and such additions thereto and substitutions therefor as may be
permitted or required pursuant to the Note Purchase Agreement.

          "Common Stock" is defined in Section 4.2(a).

          "Company Disclosure Schedule" has the meaning set forth in Article 4.

          "Consolidated Rental Obligations" shall mean, with reference to any
period, the aggregate amount of all minimum or guaranteed net rentals for which
the Company and its Majority-Owned Subsidiaries are directly or indirectly
liable (as lessee or as guarantor or other surety) under all leases in effect at
any time during such period, including all amounts for which any Person was so
liable during such period accrued prior to the date such Person became a
Majority-Owned Subsidiary or was merged into or consolidated with the Company or
a Majority-Owned Subsidiary.

          "Contract" means all contracts and agreements, contract rights,
executory commitments, license agreements, purchase and sales orders, written or
oral, relating to the operation of the business of the Company or any Majority-
Owned Subsidiary.

          "Contractual Obligation" means, as applied to any Person, any
provision of any agreement or other instrument to which that Person is a party
or by which it or any of the properties owned or leased by it is bound or
otherwise subject.

          "Conversion Stock" means the shares of Common Stock issuable upon
conversion of the shares of Series D Preferred Stock.

          "Current Liabilities" shall mean, at any date, the liabilities of the
Company and its Majority-Owned Subsidiaries (including tax and other proper
accruals) that would be classified as current liabilities in accordance with
GAAP consistent with those applied in the preparation of the financial
statements referred to in Section 4.7 hereof, but excluding the current portion
of Funded Debt.

                                       4
<PAGE>
 
          "Debt For Money Borrowed" shall mean, as to any Person, all
Indebtedness excluding Indebtedness referred to in clause (b) under the
definition of the term "Indebtedness."

          "Default" has the meaning given in the Note Purchase Agreement.

          "Eleventh Amendment" means the Eleventh Amendment to Note Purchase
Agreement dated as of the date hereof between the Company and the Investor, in
substantially the form attached as Exhibit A hereto.
                                   ---------        

          "Eligible Holder" is defined in Section 8.6.

          "Employee Benefit Plan" means any employee benefit plan, as defined in
Section 3(3) of ERISA, that is sponsored or contributed to by the Company or any
ERISA Affiliate covering employees or former employees of the Company, or with
respect to which the Company or any ERISA Affiliate is a party or is otherwise
bound.

          "Employee Pension Benefit Plan" means any employee pension benefit
plan, as defined in Section 3(2) of ERISA, that is regulated under Title IV of
ERISA or is subject to the funding requirements of Part III of Title I of ERISA
or Section 412 of the Code, other than a Multiemployer Plan.

          "Employment Agreements" is defined in Section 4.20(a).

          "Environmental Law" means all laws, ordinances and regulations
regulating or otherwise concerning the environment or relating to Hazardous
Materials, including, without limitation, the Clean Air Act, as amended, 42
U.S.C. Section 7401 et seq.; the Federal Water Pollution Control Act, as
                    -- ---                                              
amended, 33 U.S.C. Section 1251 et seq.; the Resource Conservation and Recovery
                                -- ---                                         
Act of 1976, as amended, 42 U.S.C. Section 6901 et seq.; the Comprehensive
                                                -- ---                    
Environment Response, Compensation and Liability Act of 1980, as amended
(including the Superfund Amendments and Reauthorization Act of 1986, "CERCLA"),
42 U.S.C. Section 9601 et seq.; the Toxic Substances Control Act, as amended, 15
                       -- ---                                                   
U.S.C. Section 2601 et seq.; the Occupational Safety and Health Act, as amended,
                    -- ---                                                      
29 U.S.C. Section 651, the Emergency Planning and Community Right-to-Know Act of
1986, 42 U.S.C. Section 11001 et seq.; the Mine Safety and Health Act of 1977,
                              -- ---                                          
as amended, 30 U.S.C. Section 801 et seq.; the Safe Drinking Water Act, as
                                  -- ---                                  
amended, 42 U.S.C. Section 300f et seq.; and all comparable state and local
                                -- ---                                     
laws, orders and regulations of applicable jurisdictions.

          "ERISA" means the Employee Retirement Income Security Act of 1974, as
amended.

          "ERISA Affiliate" of the Company means any other Person that, together
with the Company as of the relevant measuring date under ERISA, was or is
required to be treated as a single employer under Section 414 of the Code.

                                       5
<PAGE>
 
          "Event of Default" has the meaning given in the Note Purchase
Agreement.

          "Exchange Act" shall mean the Securities Exchange Act of 1934, as
amended, or any similar federal statute and the rules and regulations of the SEC
thereunder, all as the same shall be in effect at the time.

          "Federal Health Care Program" is defined in Section 4.33.

          "Financial Statements" is defined in Section 4.7.

          "Fiscal Quarter" shall mean the quarters ending on the last days of
March, June, September and December each year, or such other fiscal quarters as
the Board of Directors of the Company may adopt in connection with a change in
the Company's fiscal year.

          "Fiscal Year" shall mean the fiscal year of the Company, which shall
be the twelve (12) month period ending on December 31 in each year or such other
period as the Board of Directors of the Company may adopt.

          "Funded Debt" shall mean as applied to any Person, all Indebtedness of
such Person, in a principal amount of at least $1,000,000 in each instance,
which by its terms or by the terms of any instrument or agreement relating
thereto matures, or which is otherwise payable or unpaid, more than one year
from, or is directly or indirectly renewable or extendible at the option of the
debtor to a date more than one year (including an option of the debtor under a
revolving credit or similar agreement obligating the lender or lenders to extend
credit over a period of more than one year) from the date of the creation
thereof; provided that "Funded Debt" shall include, as at any date of
         --------                                                    
determination, any portion of such Funded Debt outstanding on such date which
matures on demand or within one year from such date (whether by sinking fund,
other required prepayment or final payment at maturity) and which is not
directly or indirectly renewable, extendible or refundable, at the option of the
debtor to a date more than one year from such date; provided, further, that
                                                    --------  -------      
"Funded Debt" shall include the Company's Senior Notes due 2003 issued pursuant
to that certain Note Purchase Agreement dated as of April 14, 1989, as amended
to and including the Closing Date; and provided, further, that except with
                                       --------  -------                  
respect to Indebtedness pursuant to that certain Note Purchase Agreement dated
as of April 14, 1989, as amended to and including the Closing Date, "Funded
Debt" shall not include (i) Indebtedness secured by equipment, trailers or
modular buildings used in the business of the Company or (ii) Indebtedness
convertible into equity securities of the Company on commercially reasonable
terms.

          "Funded Debt Default" means any date 30 days after the Company shall
have Knowledge that it is in default with respect to any Funded Debt, unless
during such 30 day period either (i) such default shall have been waived by the
lender with respect to such Funded Debt or (ii) the agreement or agreements
governing such Funded Debt shall have been amended to eliminate such default, in
either of cases (i) or (ii) without any economic consideration (other than such
consideration required by the terms of the documentation with respect to such
Funded Debt as in effect prior to any amendment of such documentation 

                                       6
<PAGE>
 
described in clause (ii) above) provided to the lender with respect to such
Funded Debt by the Company.

          "GAAP" is defined in Section 4.7.

          "Governmental Authority" means any federal, territorial, state or
local governmental authority, quasi-governmental authority, instrumentality,
court, government or self-regulatory organization, commission, tribunal or
organization or any regulatory, administrative or other agency, or any political
or other subdivision, department or branch of any of the foregoing, in all such
cases whether domestic or foreign.

          "Group Health Plan" means any group health plan, as defined in Section
5000(b)(1) of the Code.

          "Guaranty" is defined in Section 8.9(b).

          "Hazardous Materials" means oil, flammable explosives, asbestos, urea
formaldehyde insulation, radioactive materials, hazardous wastes, toxic or
contaminated substances or similar materials, including, without limitation, any
substances which are "hazardous substances," "hazardous wastes," "hazardous
materials" or "toxic substances" under any Environmental Laws.

          "Indebtedness" shall mean, as to any Person without duplication, (a)
all items which, in accordance with GAAP, would be included as a liability on
the balance sheet of such Person and its Majority-Owned Subsidiaries (including
any obligation of such Person to the issuer of any letter of credit for
reimbursement in respect of any drafts drawn under such letter of credit),
excluding obligations in respect of deferred taxes and deferred employee
compensation and benefits, and anything in the nature of capital stock, surplus
capital and retained earnings; (b) the amount available for drawing under all
letters of credit issued for the account of such Person; (c) obligations
(whether or not such Person has assumed or become liable for the payment of such
obligation) secured by Liens; (d) Capital Lease Obligations of such Person; and
(e) all guarantees of such Person, provided, however, that the term Indebtedness
                                   --------                                     
shall not include trade accounts payable (other than for borrowed money) arising
in, and accrued expenses incurred in, the ordinary course of business of such
Person, provided the same are not more than 45 days overdue or are being
        --------                                                        
contested in good faith.

          "Intellectual Property Right" means all of the Company's or any
Majority-Owned Subsidiary's rights, title and interest in and to all: (a) United
States and foreign patents and patent applications; (b) copyrights in computer
programs and other works of authorship; (c) trade secrets and proprietary or
confidential business and technical information; (d) proprietary "know-how,"
whether or not protectable by patent, copyright or trade secret right; and (e)
United States and foreign trademarks, service marks, trade names and associated
goodwill, and registrations or applications for registration of an such marks or
names.

          "Interest Rate Protection Agreement" shall mean an interest rate swap,
cap or collar agreement or similar arrangement between any Person and a
financial institution 

                                       7
<PAGE>
 
providing for the transfer or mitigation of interest risks either generally or
under specific contingencies.

          "Internal Rate of Return" means, as of the final date of any Fiscal
Quarter after December 31, 1999, the annual internal rate of return deemed
realized by the holders of the Series D Preferred Stock, computed in accordance
with customary financial practices (compounded annually):

          (a)  assuming:

               (i)  a deemed initial investment per share of Series D Preferred
Stock as of the Closing Date equal to the Conversion Price (as defined and
computed in accordance with the Series D Certificate of Designation) as of the
date of determination;

               (ii) a deemed value for each share of Series D Preferred Stock as
of any date after December 31, 1999 of an amount equal to the then Average
Market Price of a share of Common Stock; and

          (b) taking into account all Regular Dividends (as defined in the
Series D Certificate of Designation) actually received with respect to each such
share through and including the date of determination.

          "Investments" when used with reference to any investment of the
Company or any of its Majority-Owned Subsidiaries shall mean any investment so
classified under GAAP, and, whether or not so classified, includes, without
duplication, (a) any direct or indirect Loan or advance made by it to any other
Person, (b) any direct or indirect guarantee of the obligations of any other
Person, (c) any capital contribution to any other Person, and (d) any ownership
or similar interest in any other Person; and the amount of any Investment shall
be the original principal or capital amount thereof (plus any subsequent
                                                     ----               
principal or capital amount), including amounts written off in respect of such
principal or capital amounts, minus all returns of principal or capital thereof
                              -----                                            
(whether in cash or other assets, including assets transferred by virtue of any
merger, consolidation or liquidation).

          "IRR Trigger Date" shall mean the first day of the first Fiscal
Quarter after the date, if any, after December 31, 1999 on which the Internal
Rate of Return shall exceed 25% per annum; provided, that no IRR Trigger Date
shall occur unless at such time the shares of Common Stock are listed or trading
on a national securities exchange or automated quotation system.

          "Knowledge" or "knowledge," with respect to any Person, means the
actual knowledge of such Person, after reasonable inquiry.  For purposes hereof,
a Person shall be deemed to have actual knowledge of the contents of all books
and records with respect to which such Person has reasonable access.  Without
limiting the generality of the foregoing, with respect to any Person that is a
corporation, partnership or other business entity, actual knowledge shall be
deemed to include the actual knowledge of all principal employees of any such
Person (which, for purposes of the Company, shall include without limitation
Richard N. Zehner, Vincent S. Pino, Terrence M. White, Jay A. Mericle, Terry A.
Andrues, Neil M. 

                                       8
<PAGE>
 
Culinan, Ph.D., Cheryl A. Ford, and Michael W. Grismer) as well as the Chief
Executive Officer, President, Chief Financial Officer and all Vice Presidents in
the case of corporate Persons, and general partners in the case of general or
limited partnerships, as the case may be.

          "Lease Agreements" is defined in Section 4.19(b).

          "Leased Real Property" means all real property leased, occupied,
operated or controlled by the Company or any Majority-Owned Subsidiary or
otherwise related to or used in the business of the Company or any Majority-
Owned Subsidiary.

          "Liability" means, with respect to any Person, any liability or
obligation of such Person of any kind, character or description, whether known
or unknown, absolute or contingent, accrued or unaccrued, liquidated or
unliquidated, secured or unsecured, joint or several, due or to become due,
vested or unvested, executory, determined, determinable or otherwise and whether
or not the same is required to be accrued on the financial statements of such
Person.

          "Lien" means any lien, mortgage, pledge, security interest, charge, or
encumbrance of any kind (including any conditional sale or other title retention
agreement or any lease in the nature thereof) and any agreement to give or
refrain from giving any lien, mortgage, pledge, security interest, charge, or
other encumbrance of any kind.  For purposes of this Agreement, the Company or
any of its Subsidiaries shall be deemed to own subject to a Lien any asset which
it has acquired or holds subject to the interest of a vendor or lessor under any
conditional sale agreement, capital lease or other title retention agreement
relating to such asset.

          "Loan" means the Senior Loan.

          "Loan Documents" means, collectively, the Bridge Loan Agreement and
the Senior Note, as amended, supplemented, replaced or modified.

          "Long-Term Lease" shall mean any lease which is not a Capital Lease of
any property (whether real, personal or mixed) other than any such lease having
a term (including all renewal terms, whether or not exercised) of less than 12
months from the date of inception of such lease.

          "Material Adverse Effect" means, with respect to any Person or
designated group of Persons, a change in, or effect on, or group of such changes
in or effects on, the operations, financial condition or results of operations,
prospects, assets or Liabilities of the Person or group of Persons, as the case
may be, taken as a whole, that results in a material adverse effect on, or a
material adverse change in, the operations, financial condition, results of
operations, prospects, assets or Liabilities of the Person or group of Persons,
as the case may be, taken as a whole, excluding adverse changes in the general
economy.

                                       9
<PAGE>
 
          "Majority-Owned Subsidiary" means any Subsidiary of which at least a
majority of the outstanding shares, partnership interests or other equity
interests therein is at the time directly or indirectly owned or controlled by
the Company or any other Subsidiary which is a consolidated subsidiary of the
Company under GAAP, or one or more of the Majority-Owned Subsidiaries or by the
Company and one or more of the Majority-Owned Subsidiaries.

          "Material Contracts" is defined in Section 4.10(b).

          "Multiemployer Plan" means any multiemployer plan as defined in either
Section 3(37) or 4001(a)(3) of ERISA.

          "Multiple Employer Plan" means any Employee Benefit Plan sponsored by
more than one employer, within the meaning of Sections 4063 of 4064 of ERISA or
Code Section 413(c).

          "Net Worth" shall mean, as at any date of determination thereof, the
sum of the following for any Person and its consolidated subsidiaries determined
(without duplication) in accordance with GAAP: (a) the amount of capital stock,
plus (b) the amount of surplus and retained earnings (or, in the case of a
surplus or retained earnings deficit, minus the amount of such deficit).

          "Note Purchase Agreement" is defined in Section 8.4.

          "Permitted Encumbrances" means: (i) Liens for taxes, assessments or
charges for claims that are not yet due and payable or being contested in good
faith by appropriate proceedings and with respect to which adequate reserves or
other appropriate provisions are being maintained in accordance with GAAP; (ii)
statutory Liens of carriers, warehousemen, mechanics, materialmen, bankers and
other Liens imposed by law and created in the ordinary course of business for
amounts that are not material, and that are not yet due and payable or that are
being contested in good faith by appropriate proceedings and with respect to
which adequate reserves or other appropriate provisions are being maintained in
accordance with GAAP; (iii) Liens incurred and deposits made in the ordinary
course of business to secure the performance (including by way of surety bonds
or appeal bonds) of tenders, bids, leases, contracts, statutory obligations or
similar obligations or arising as a result of progress payments under contracts,
in each case in the ordinary course of business and not relating to the
repayment of debt; (iv) easements, rights-of-way, covenants, consents,
reservations, encroachments, variations and other restrictions, charges,
encumbrances; (v) building restrictions, zoning laws and other statutes, laws,
rules, regulations, ordinances and restrictions; (vi) leases or subleases
approved by, or deemed approved by Investor; (vii) any attachment or judgment
Lien, not otherwise constituting a Default under the Note Purchase Agreement, in
existence less than thirty (30) days after the entry thereof or with respect to
which (A) execution has been stayed, (B) payment is covered in full by insurance
to which Investor has been made the loss payable party, or (C) Company is in
good faith prosecuting an appeal or other appropriate proceedings for review and
has set aside on its books and granted to Investor a priority perfected security
interest in such reserves as may be required by GAAP with respect to such
judgment or award; (viii) Liens with respect to purchase money security

                                       10
<PAGE>
 
interests (including refinancings thereof) granted in the ordinary course of the
Company's business, consistent with past practice; and (ix) rights of Persons
under leases of equipment to such Person in the ordinary course of business.

          "Person" or "person," means any natural person, firm, corporation,
partnership, limited liability company, association, trust, Governmental
Authority or other entity.

          "Plan Affiliate" means, with respect to any Person, any employee
benefit plan or arrangement sponsored by, maintained by or contributed to by
such Person, and with respect to any employee benefit plan or arrangement, any
Person sponsoring, maintaining or contributing to such plan or arrangement.

          "Preferred Stock" means, collectively, the Series D Preferred Stock
and the Series E Preferred Stock.

          "Proceeding" means any action, suit, hearing, arbitration, audit,
investigation or similar proceeding.

          "Prohibited Transaction" means a transaction that is prohibited under
Section 4975 of the Code or Section 406 of ERISA and not exempt under Section
4975 of the Code or Section 408 of ERISA.

          "Purchased Stock" has the meaning set forth in Section 2.2.

          "Registrable Securities" means (i) the Conversion Stock and the Series
E Conversion Stock; and (ii) any Common Stock of the Company issued or issuable
in respect of the Securities or other securities issued or issuable pursuant to
the conversion of the Securities upon any stock split, stock dividend,
recapitalization, merger, consolidation or similar event.  Securities shall
cease to constitute "Registrable Securities" at such time that they are sold or
transferred in a transaction wherein the transferee does not acquire "restricted
securities" within the meaning of Rule 144 promulgated under the Securities Act.
Securities shall cease to constitute "Registrable Securities" at such time that
they are sold or transferred in a transaction wherein the transferee does not
acquire "restricted securities" within the meaning of Rule 144 promulgated under
the Securities Act.

          "Refinancing Agreements" means the Assignment and Amended & Restated
Standstill Agreement between the Company, on the one hand, and The Northwestern
Mutual Life Insurance Company, The Travelers Insurance Company, The Travelers
Indemnity Company, The Travelers Life and Annuity Company, The Lincoln National
Life Insurance Company and Bedrock Asset Trust I, on the other hand, dated as of
December 31, 1996.

          "Restated Note" shall mean the 7.50% Restated Convertible Senior Note
Due 2003, payable to Investor by the Company, in the form attached hereto as
Exhibit B.
- --------- 

          "SEC" is defined in Section 4.29.

                                       11
<PAGE>
 
          "SEC Documents" is defined in Section 4.29.

          "Secured Obligations" shall mean, as at any date of determination, the
aggregate principal amount of the term loans and the revolving credit loans
outstanding under the Working Capital Facility.

          "Securities" shall mean, collectively, the Series D Preferred Stock,
the Conversion Stock, the Series E Preferred Stock, and the Series E Conversion
Stock.

          "Securities Act" shall mean the Securities Act of 1933, as amended, or
any similar federal statute and the rules and regulations of the SEC thereunder,
all as the same shall be in effect at the time.

          "Senior Note" means the note evidencing the Senior Loan.

          "Senior Note Accrued Interest" is defined in Section 3.3.

          "Senior Loan" means the loan extended to the Company by the Investor
in its capacity as lender under the Bridge Loan Agreement.

          "Senior Secured Notes" is defined in Section 8.6(d).

          "Series C Preferred Stock" is defined in Section 4.2.

          "Series D Certificate of Designation" shall mean the Amended
Certificate of Designation, Preferences and Rights of Series D 4% Cumulative
Redeemable Convertible Preferred Stock in the form set forth as Exhibit C
                                                                ---------
hereto.

          "Series D Preferred Stock" shall mean the Series D 4% Cumulative
Redeemable Convertible Preferred Stock, with the rights, preferences and
privileges set forth in the Series D Certificate of Designation.

          "Series E Certificate of Designation" shall mean the Amended
Certificate of Designation, Preferences and Rights of Series E 4% Cumulative
Redeemable Convertible Preferred Stock in the form set forth as Exhibit D
                                                                ---------
hereto.

          "Series E Conversion Stock" means the shares of Common Stock issuable,
upon certain conditions, by the Company to the Investor in respect of the Series
E Preferred Stock.

          "Series E Preferred Stock" shall mean the Series E 4% Cumulative
Redeemable Convertible Preferred Stock, with the rights, preferences and
privileges set forth in the Series E Certificate of Designation.

          "Seventh Amendment Effective Date" shall mean December 31, 1994.

          "State Health Care Program" is defined in Section 4.33.

                                       12
<PAGE>
 
          "Subordinated Debentures" means the Company's 7.50% Senior
Subordinated Debentures due 2005.

          "Subsidiary" is defined in Section 4.3.

          "Subsidiary Total Debt" shall mean the aggregate amount of
Indebtedness, without duplication, of the Majority-Owned Subsidiaries of the
Company excluding Indebtedness with respect to each guaranty of the Senior
Secured Notes.

          "Voting Stock" shall mean, with respect to any corporation, any shares
of Capital Stock of such Corporation having general voting power under ordinary
circumstances to vote for members of the Board of Directors of such corporation
(irrespective of whether at the time stock of any other class or classes shall
have or might have voting power by reason of the happening of any contingency).

          "Tax" or "Taxes" means any tax or other similar Liability imposed or
collected by any Governmental Authority, including all federal, state, county,
local and foreign income, profits, franchise, gross receipts, payroll, sales,
employment, use, occupation, property, excise, value added, withholding and
other taxes, duties or assessments (including the recapture of any tax items
such as investment tax credits), together with any related interest, penalties
and additions and shall include any transferee or secondary Liability for a Tax
and any Liability arising as a result of being (or ceasing to be) a member of
any affiliated, consolidated, combined, or unitary group or being included (or
required to be included) in any Tax Return relating thereto.

          "Tax Agreement" means any sharing, allocation, indemnity or other
agreement or arrangement (written or unwritten) relating to Taxes (other than
this Agreement).

          "Tax Return" means any return, report, information return or other
documents (including any related or supporting schedules, statements or
information) filed or required to be filed with any Tax authority or
Governmental Authority in connection with the determination, assessment or
collection of any Taxes of any Person or the administration of any laws,
regulations or administrative requirements relating to any Taxes.

          "Working Capital Facility" shall have the meaning specified in Section
9.06 of the Note Purchase Agreement.

     2.   PURCHASE AND SALE OF SERIES D PREFERRED STOCK.
          --------------------------------------------- 

          2.1       AUTHORIZATION.  The Company has authorized the sale and
                    -------------                                          
issuance of up to Eighteen Thousand (18,000) shares of its Series D Preferred
Stock, having the rights, privileges, preferences and restrictions as stated in
the Series D Certificate of Designation set forth as Exhibit C to this
                                                     ---------        
Agreement.

          2.2       SALE AND ISSUANCE OF CERTAIN SHARES OF SERIES D PREFERRED
                    ---------------------------------------------------------
STOCK.  Subject to the terms and conditions set forth in this Agreement, the
- -----                                                                       
Investor shall 

                                       13
<PAGE>
 
purchase at the Closing (as defined below), and the Company shall sell and issue
to the Investor at the Closing, Eighteen Thousand (18,000) shares of Series D
Preferred Stock (the "Purchased Stock") for a purchase price of One Thousand
Dollars ($1,000.00) per share, or an aggregate purchase price of Eighteen
Million Dollars ($18,000,000) (the "Aggregate Purchase Price.")

     3.   CLOSING; DELIVERIES; FORM OF CONSIDERATION.
          ------------------------------------------ 

          3.1  THE CLOSING.  Subject to the satisfaction or waiver of the
               -----------                                               
conditions set forth in this Agreement, the closing (the "Closing") of the
purchase and sale of the Series D Preferred Stock shall take place at the
offices of Gibson, Dunn & Crutcher LLP, 333 South Grand Avenue, Los Angeles,
California 90071 on a date to which the Company and the Investor may agree (the
"Closing Date").

          3.2  DELIVERIES.  At the Closing, the Company shall deliver to the
               ----------                                               
Investor certificates representing the numbers of shares of Purchased Stock
under this Agreement in exchange for delivery to the Company from the Investor
of the consideration specified in Section 2.2 of this Agreement.

          3.3  FORM OF CONSIDERATION.  The Company hereby acknowledges and
               ---------------------                                      
agrees that there is outstanding pursuant to the Senior Note a principal balance
of $18,000,000, plus accrued interest as provided for in the Bridge Loan
Agreement and Senior Note (such accrued interest, the "Senior Note Accrued
Interest"), with such principal balance and Senior Note Accrued Interest as of
the date hereof due and owing to the Investor from the Company.  The Investor
shall deliver the Aggregate Purchase Price hereunder in the form of an exchange
of the principal balance due under the Senior Note for the Purchased Shares.  At
the Closing, the Company shall pay to the Investor all Senior Note Accrued
Interest in cash.

     4.   REPRESENTATIONS AND WARRANTIES OF THE COMPANY.  Except as set forth
          ---------------------------------------------                
on the Company Disclosure Schedule attached hereto as Schedule 4 (the "Company
Disclosure Schedule"), the Company represents and warrants to the Investor as
follows:

          4.1  ORGANIZATION, GOOD STANDING AND QUALIFICATION.
               --------------------------------------------- 

               (a) The Company is a corporation duly organized, validly existing
and in good standing under the laws of the State of Delaware and has all
requisite corporate power and authority to own and operate its properties and
assets and to carry on its business as now conducted and as proposed to be
conducted. The Company is duly qualified to transact business and is in good
standing in each jurisdiction in which the failure to so qualify, either alone
or together with all other such failures, would have a Material Adverse Effect
on the Company. Schedule 4.1 includes true and complete copies of the Company's
Certificate of Incorporation and Bylaws currently in effect and a list of all
states or other jurisdictions in which the Company is qualified to do business.
All of the terms and provisions of the Certificate of Incorporation and Bylaws
are legal, valid and enforceable.

                                       14
<PAGE>
 
               (b) Each Subsidiary is a corporation or other business entity
duly organized, validly existing and in good standing under the laws of its
jurisdiction of organization, and has all requisite power and authority to own
and operate its properties and assets and to carry on its business as now
conducted and as proposed to be conducted. Each Subsidiary is duly qualified to
transact business and is in good standing in each jurisdiction in which the
failure to so qualify, either along or together with all other such failures,
would have a Material Adverse Effect on such Subsidiary. Schedule 4.1 contains a
list of all states or other jurisdictions in which each Subsidiary is qualified
to do business. All of the terms and provisions of the organizational documents
of each Subsidiary are legal, valid and enforceable.                     

          4.2  CAPITALIZATION.
               -------------- 

               (a) The authorized capital of the Company consists of: (i) 
Twenty-Five Million (25,000,000) shares of common stock ("Common Stock"),
10,927,471 shares of which will be issued and outstanding immediately after the
Closing Date; (ii) One Million (1,000,000) shares of Preferred Stock, of which
(A) Four Thousand (4,000) shares of Series C Convertible Preferred Stock
("Series C Preferred Stock") are designated and authorized as of the Closing
Date, 3,876 shares of which will be issued and outstanding immediately after the
Closing Date; (B) Eighteen Thousand (18,000) shares of Series D Preferred Stock
are designated and authorized as of the Closing Date, all of which will be
issued and outstanding immediately after the Closing Date; and (C) Nine Thousand
(9,000) shares of Series E Preferred Stock are designated and authorized as of
the Closing Date, none of which will be issued and outstanding immediately after
the Closing Date. The outstanding shares of Common Stock and Series C Preferred
Stock are fully paid, non-assessable, free and clear of all encumbrances and
have been issued in compliance with all state and federal securities laws. None
of such shares is subject to any preemptive rights.

               (b) The rights, preferences, privileges and restrictions of the
Series D Preferred Stock are as stated in the Series D Certificate of
Designation. The rights, preferences, privileges and restrictions of the Series
E Preferred Stock are as stated in the Series E Certificate of Designation. The
shares of Purchased Stock and all other Securities will be issued in compliance
with applicable state and federal securities laws. The shares of Purchased Stock
and all other Securities have been duly authorized. The shares of Purchased
Stock will be validly issued and delivered, fully paid and non-assessable, and
free from restrictions on transfer except as set forth in this Agreement and
pursuant to applicable securities laws as of the Closing Date. All of the
Securities (other than the Purchased Stock), when and if issued in accordance
with this Agreement, the Restated Note, the Note Purchase Agreement, the Series
D Certificate of Designation, and the Series E Certificate of Designation, as
the case may be, will be validly issued and delivered, fully paid and non-
assessable, and free from restrictions on transfer except as set forth in this
Agreement, the Restated Note, the Note Purchase Agreement, the Series D
Certificate of Designation, or the Series E Certificate of Designation, as the
case may be, and pursuant to applicable securities laws.

                                       15
<PAGE>
 
               (c) Except for (i) the Conversion Stock relating to the Series D
Preferred Stock, (ii) the issuance of Series E Preferred Stock and the issuance
of Series E Conversion Stock, (iii) the issuance, sale or grant of rights to
purchase (including options and warrants) aggregating up to 990,983 shares of
Common Stock to key employees and directors of the Company outstanding on the
date hereof, (iv) warrants relating to an aggregate of 328,900 shares of Common
Stock outstanding on the date hereof and (v) for 77,520 shares of Common Stock
currently issuable upon conversion of the Company's outstanding Series C
Preferred Stock, the Company has not become subject to, any commitment or
obligation, either absolute or conditional, to issue, deliver or sell, or cause
to be issued, delivered or sold, under offers, stock option agreements, stock
bonus agreements, stock purchase plans, incentive compensation plans, warrants,
options, calls, conversion rights or otherwise, any shares of the capital stock
or other securities of the Company including securities or obligations
convertible into or exchangeable for any shares of capital stock, other equity
securities or ownership interests, upon payment of any consideration or
otherwise.  Except as provided in this Agreement, the Company is not a party or
subject to any agreement or understanding, and, to the Company's Knowledge,
there is no agreement or understanding between any Persons and/or entities, that
affects or relates to the voting or giving of written consents with respect to
any of the Company's voting securities.

          4.3  SUBSIDIARIES.
               ------------ 

               (a) Schedule 4.3 sets forth a correct and complete list of: (i)
                   ------------
the name, number of shares, partnership interests or other equity interests
held, and percentage ownership by the Company in each corporation, partnership,
joint venture or other entity in which the Company has, directly or indirectly,
any equity interest in the capital stock thereof, any partnership interest, or
any other equity interest therein (individually a "Subsidiary" and collectively
"Subsidiaries".) Except as specifically set forth in Schedule 4.3, the Company
                                                     ------------             
owns of record and beneficially all of the outstanding capital stock of each of
the Subsidiaries free and clear of all Liens.  Each of the Subsidiaries is duly
organized, validly existing and in good standing under the laws of its
jurisdiction of incorporation, is entitled to own, lease or operate the
properties and assets it now owns, leases or operates, and is qualified to do
business, is in good standing and has all required and appropriate licenses in
each jurisdiction in which its failure to obtain or maintain such qualification,
good standing or licensing, or group of the foregoing, would have a Material
Adverse Effect on such Subsidiary.  The shares of capital stock of each
Subsidiary shown in Schedule 4.3 to be issued and outstanding have been validly
                    ------------                                               
authorized and issued and are validly outstanding, fully paid and non-
assessable.  No Subsidiary holds shares of its capital stock in its treasury,
and there are not outstanding (i) any options, warrants or other rights with
respect to the capital stock of any of the Subsidiaries, (ii) any securities
convertible into or exchangeable for shares of such stock or (iii) any other
commitments of any kind for the issuance of additional shares of capital stock
or options, warrants or other securities of any of them.  The Company has
provided or made available to the Investor copies of the certificates of
incorporation, articles of incorporation, partnership agreements, limited
liability company operating agreements, joint venture agreements, or other
governing documents with respect to each Subsidiary.

                                       16
<PAGE>
 
               (b) The Company's wholly-owned Subsidiary, EPIC/Alliance of
Texas, Inc., a Texas corporation, has purchased all partnership units previously
owned by any other Person in EPIC/Alliance of North Texas, Ltd., a Texas limited
partnership, and is currently the sole owner of all units of such partnership.
EPIC/Alliance of North Texas, Ltd., has been terminated by operation of law in
accordance with Texas law. Neither the Company nor any Subsidiary is a party to
any partnership or joint venture other than the Georgia Magnetic Imaging Center
Limited Partnership.

          4.4  AUTHORIZATION.
               ------------- 

               (a) The Company has all corporate and other requisite authority
to execute, deliver and carry out and perform its obligations under the terms of
this Agreement and the other agreements referred to herein, and all of the
transactions contemplated hereunder and thereunder, including the sale and
issuance of the Securities. The execution and delivery of this Agreement and the
other agreements referred to herein, and the consummation of the transactions
contemplated hereby and thereby, have been duly authorized by all necessary
action on the part of the Company and, except as set forth herein, no other
approval is required for the performance by the Company of its obligations
hereunder, or thereunder. This Agreement and the other agreements referred to
herein have been, and at Closing will be, duly executed and delivered by the
Company.

               (b) This Agreement and the other agreements referred to herein,
when executed and delivered by the Company, will constitute valid and binding
obligations of the Company, enforceable against the Company in accordance with
their respective terms, subject to bankruptcy, insolvency, reorganization,
moratorium and other laws of general application affecting the rights and
remedies of creditors, and general principles of equity regardless of whether
applied in a proceeding in equity or at law.

               (c) The Board of Directors of the Company, at a meeting duly
called and held or by a unanimous written consent, has in light of and subject
to the terms and conditions set forth herein, (i) determined that this
Agreement, the other agreements referred to herein, and the transactions
contemplated hereby and thereby, taken together, are in the best interest of the
Company and its shareholders and (ii) approved this Agreement, the other
agreements referred to herein, and the transactions contemplated hereby and
thereby. All required notices to, and approvals and consents of, the Company's
shareholders for this Agreement and the other agreements referred to herein, and
the consummation of the transactions contemplated hereby and thereby, have been
validly given and obtained.

          4.5  GOVERNMENTAL AND OTHER CONSENTS; NO VIOLATION.  No consent,
               ---------------------------------------------              
approval, order or authorization of, or registration, qualification,
designation, declaration or filing with, any Governmental Authority or any other
Person is required on the part of the Company in connection with the Company's
valid execution, delivery or performance of this Agreement or the other
agreements referred to herein or the offer, sale or issuance of the Securities,
except as may be required under applicable state "blue sky" laws.  The
execution, delivery and performance by the Company of this Agreement, the
issuance of the Purchased 

                                       17
<PAGE>
 
Stock and the other Securities, and the consummation of the other transactions
contemplated hereby, do not and will not (a) violate any provision of the
Company's Certificate of Incorporation or Bylaws as currently in effect, (b)
conflict with, result in a breach of, or constitute (or, with the giving of
notice or lapse of time or both, would constitute) a default under, or, except
for consents that have been obtained and are in full force and effect, require
the approval or consent of any Person pursuant to, any Contractual Obligation of
the Company, or (c) result in the creation or imposition of any Lien upon any
asset of the Company.

          4.6  LITIGATION.  There is no action, suit, claim, arbitration,
               ----------                                                
litigation, legal, administrative or other proceeding, or investigation (by any
Governmental Authority or otherwise) pending against or affecting the Company,
any Subsidiary or the assets, products or business of any of them or, to the
Knowledge of the Company, any basis therefor or threat thereof, other than
disputes and claims arising in the ordinary course of the Company's business
that could not in the aggregate have a Material Adverse Effect on the Company
and its Subsidiaries.  Neither the Company nor any Subsidiary is a party or
subject to the provisions of any order, writ, injunction, judgment or decree of
any court or other Governmental Authority.  There is no action, suit, claim,
arbitration, litigation, legal, administrative or other proceeding, or
investigation by the Company or any Subsidiary currently pending or that the
Company or any Subsidiary currently intends to initiate.  There are no judicial
or administrative actions, proceedings or investigations pending or, to the
Company's Knowledge, threatened, against the Company, any Subsidiary or any of
their respective businesses, assets or products that seek to enjoin, question
the validity of, or rescind the transactions contemplated by this Agreement or
any of the other agreements referred to herein or otherwise prevent the Company
from complying with the terms and provisions of this Agreement or any of such
other agreements.

          4.7  FINANCIAL STATEMENTS AND REPORTS.
               -------------------------------- 

               (a) The financial statements contained in the SEC Reports
(collectively, the "Financial Statements") have been prepared in accordance with
generally accepted accounting principles ("GAAP") applied on a consistent basis
throughout the periods indicated and with each other (except that the Financial
Statements may not contain all footnotes required by GAAP) and fairly present
the consolidated financial condition of the Company and the Subsidiaries and the
consolidated results of operations as of such dates and for such periods
indicated.  Since September 30, 1996, there has not been any material adverse
change to the financial condition of the Company or any Subsidiary as set forth
in the Financial Statements.  There are no Liabilities required by GAAP to be
disclosed in the Financial Statements that are not disclosed in the Financial
Statements.  Except as reflected in the Financial Statements, neither the
Company nor any Subsidiary is a guarantor or indemnitor of any indebtedness of
any other Person.  The Company maintains a standard system of accounting
established and administered in accordance with GAAP.  The Company's accounting
policies relating to revenue recognition, reserves, capitalization expense,
depreciation and amortization are administered in accordance with GAAP.  The
general ledger, accounts receivable, accounts payable, bank reconciliations and
payroll records of the 

                                       18
<PAGE>
 
Company have been maintained in the ordinary course and contain a correct and
complete record of the matters typically contained in records of such nature.

               (b) Schedule 4.7(b) lists all management letters and all other
                   ------------
letters (other than audit letters included in the SEC Documents) delivered to
the Company by the Company's independent auditing firm(s) relating to the
results of operations, financial statements or internal controls of the Company
or any Subsidiary insofar as the same may pertain to the business or assets of
the Company and any Subsidiary during any period from and after January 1, 1994.

               (c) Since January 1, 1994, there has been no material
disagreement (within the meaning of Item 304(a)(1)(iv) of Regulation S-K under
the Securities Act of 1933, as amended (the "Securities Act")) between the
Company and its independent auditing firm(s) concerning any aspect of the manner
in which the Company has reported upon the financial condition and results of
operations of the business or assets of the Company since such date, that has
not been resolved to the satisfaction of the relevant independent auditing firm.

          4.8  PROPRIETARY INFORMATION.  To the Company's Knowledge (which
               -----------------------                                    
for purposes hereof shall not include the knowledge of the applicable officer,
director or employee), none of the officers, directors or employees of the
Company or any of its Subsidiaries is in violation of any agreement regarding
proprietary information and inventions.  To the Company's Knowledge (which for
purposes hereof shall not include the knowledge of the applicable officer or
employee), none of the officers or employees of the Company or any of its
Subsidiaries is in violation of any prior employment contract or proprietary
information agreement with any Person.

          4.9  REGISTRATION RIGHTS.  Neither the Company nor any Subsidiary
               -------------------                                         
is a party to any agreement or commitment that obligates the Company to register
under the Securities Act any of its presently outstanding securities or any of
its securities that may hereafter be issued, except as contemplated hereby.

          4.10 CONTRACTS.
               --------- 

               (a) "Current Customer" means any Person from whom the Company or
any Subsidiary has recognized revenue since January 1, 1995 through the date
hereof or to whom the Company or any Subsidiary has any obligation to complete
work or honor any contractual warranty or has any obligation or Liabilities.
Since January 1, 1996 no Current Customers of the business have canceled or
terminated their Contracts, or notified the Company or any Subsidiary in writing
or, to the Knowledge of the Company or any Subsidiary, orally, of their specific
intent to cancel or terminate their contract, except any such cancellations,
terminations or notifications that in the aggregate could not have a Material
Adverse Effect (taking into account revenue generated from replacement
customers) on the Company and its Subsidiaries.

                                       19
<PAGE>
 
               (b) Schedule 4.10(b) contains a correct and complete list of all
                   ----------------                                            
agreements, contracts, indebtedness, liabilities and other obligations to which
the Company or any Subsidiary is a party or by which it is bound that are
material to the conduct and operations of its business and properties, which
provide for payments to or by the Company or any Subsidiary in excess of
$500,000 annually or $2,000,000 in the aggregate, which obligate the Company or
any Subsidiary to share, license or develop any product or technology, or which
involve transactions or proposed transactions between the Company and any
Subsidiary on the one hand, and the officers, directors, Affiliates or any
Affiliate of the Company or any Subsidiary, on the other hand (collectively, the
"Material Contracts"), excluding any such Material Contracts that are contracts
 ------------------                                                            
with Current Customers.

               (c) The Company and the Subsidiaries have in all material
respects performed, and are now performing in all material respects, the
obligations under, and are not in default (or to the Company's Knowledge, would
by the lapse of time and/or the giving of notice or otherwise be in default) in
respect of, any of the Material Contracts. To the Company's Knowledge, each of
the Material Contracts is in full force and effect and is a valid and
enforceable obligation against the Company or a Subsidiary, as applicable, and
the other party thereto, in accordance with its terms.

          4.11 ABSENCE OF CHANGES.  Since January 1, 1996, except as reflected
               ------------------                                   
in the Financial Statements or the SEC Documents, neither the Company nor any
Subsidiary has (i) declared or paid any dividends, or authorized or made any
distribution upon or with respect to any class or series of its capital stock;
(ii) incurred any indebtedness for money borrowed other than in the ordinary
course or any other Liabilities other than in the ordinary course; (iii) made
any loans or advances to any Person (other than advances for business or travel
expenses) or guaranteed the obligations of any Person; (iv) sold, exchanged or
otherwise disposed of any of its assets or rights, other than the sale, exchange
or other disposition of its equipment and services in the ordinary course of
business consistent with past practice; (v) incurred any change in the assets,
Liabilities, financial condition, operating results, prospects or business of
the Company from that reflected in the Financial Statements, except changes in
the ordinary course of business consistent with past practice that have not
been, in the aggregate, materially adverse; (vi) suffered any damage,
destruction or loss, whether or not covered by insurance, materially and
adversely affecting the assets, properties, financial condition, operating
results, prospects or business of the Company (as such business is presently
conducted and as it is proposed to be conducted); (vii) waived a valuable right
or a debt owed to it, except in the ordinary course of business consistent with
past practice; (viii) satisfied or discharged any Lien, claim or encumbrance or
payment of any obligation, except in the ordinary course of business consistent
with past practice and that is not material to the assets, properties, financial
condition, operating results, prospects or business of the Company or any
Subsidiary (as such business is presently conducted and as it is proposed to be
conducted); (ix) agreed to or made any material change or amendment to any
Material Contract, except in the ordinary course of business consistent with
past practice; (x) made any material change in any compensation arrangement or
agreement with any employee; (xi) permitted or allowed any of its assets to be
subjected to any material Lien, other than Liens on equipment in the ordinary
course of business consistent with past practice; (xii) written up the 

                                       20
<PAGE>
 
value of any inventory, notes or accounts receivable, or other assets; (xiii)
licensed, sold transferred, pledged, modified, disclosed, disposed of or
permitted to lapse any right to the use of any Intellectual Property Right;
(xiv) made any change in any method of accounting or accounting practice or any
change in depreciation or amortization policies or rates previously adopted;
(xv) paid, lent or advanced any amount to, or sold, transferred or leased any
assets to, or entered into any agreement or arrangement with, any of its
Affiliates, except for directors' fees, and employment compensation to officers;
(xvi) made capital expenditures or commitments therefor, other than such capital
expenditures or commitments made in the ordinary course consistent with past
practice and not exceeding, in the aggregate, Thirty Million Dollars
($30,000,000) for the period from September 30, 1996 through the Closing Date;
and (xvii) to the Company's Knowledge, incurred or suffered any other event or
condition of any character that could reasonably be expected to result in a
Material Adverse Effect to the Company or any Subsidiary.

          4.12 INTELLECTUAL PROPERTY.  The Company and each of the Subsidiaries
               ---------------------                              
owns or possesses adequate rights to use all material patents, patent
applications, trademarks, service marks, trade names, trademark registrations,
service mark registrations, copyrights, technology, software, trade secrets,
know-how and licenses necessary for the conduct of their respective businesses
and have no reason to believe that the conduct of their respective businesses
will conflict with, and have not received any notice of any claim of conflict
with, any such rights of others.

          4.13 COMPLIANCE WITH OTHER INSTRUMENTS.  Neither the Company nor
               ---------------------------------                          
any Subsidiary is in violation or default of any provisions of its Charter or
Bylaws (the "Charter Documents"), or of any provision of Applicable Law.
             -----------------                                           
Neither the Company nor any Subsidiary is in violation or default of any
instrument, judgment, order, writ, decree or oral or written contract or other
agreement to which it is a party or by which it is bound, except with respect to
any such defaults which could not have a Material Adverse Effect on the Company
or the relevant Subsidiary, as the case may be.  The execution, delivery and
performance of this Agreement and the other agreements referred to in this
Agreement, and the consummation of the transactions contemplated hereby and
thereby, will not result in any such violation or be in conflict with any
provision of the Charter Documents or Applicable Law, or any instrument,
judgment, order, writ, decree, contract or other agreement, and will not be an
event that results in the creation of any Lien upon any assets of the Company or
any Subsidiary or constitute a default under or give rise to any right of
termination, cancellation or acceleration of, or to a loss of any benefit to
which the Company or any Subsidiary is entitled, under any contract or any
license, franchise, permit or similar authorization relating to the Company or
any Subsidiary or by which its business or assets may be bound.

          4.14 COMPLIANCE WITH LAW; APPROVALS.
               ------------------------------  

               (a) The operations of the Company and its Affiliates have been
and will continue to be conducted in accordance with all Applicable Laws,
including, without limitation, all such laws, regulations, orders and
requirements promulgated by any Governmental Authority or relating to consumer
protection, equal opportunity, health care

                                       21
<PAGE>
 
industry regulation, third party reimbursement (including Medicare and
Medicaid), environmental protection, fire, zoning and building and occupational
safety matters, except for violations that individually or in the aggregate
would not and, insofar as may reasonably be foreseen, in the future will not,
have a Material Adverse Effect on the Company or any Subsidiary.

               (b) Neither the Company nor any Affiliate has received notice of
any violation (or of any investigation, inspection, audit, or other proceeding
by any Governmental Authority involving allegations of any violation ) of any
Applicable Law, or is in material default with respect to any Applicable Law,
and to the best Knowledge of the Company and all Affiliates, no investigation,
inspection, audit, or other proceeding by any Governmental Authority involving
allegations of violation of any Applicable Law is threatened or contemplated.

               (c) Neither the Company nor any Affiliate has any Knowledge of
any proposed change in any Applicable Law that would materially adversely affect
the transactions contemplated by this Agreement or all or any material part of
the assets or business of the Company or any Affiliate.

               (d) Each of the Company and its Affiliates has, and all
professional employees or agents of each of the Company and its Affiliates have,
all licenses, franchises, permits, authorizations, including certificates of
need, or approvals from all Governmental Authorities ("Approvals") required for
the conduct of the business of each of the Company and its Affiliates and the
occupancy and operation, for its present uses, of the real and personal property
which each of the Company and its Affiliates owns or leases, except where the
failure to have such Approvals would not, individually or in the aggregate, have
a Material Adverse Effect on any of the Company or any Affiliate, and neither
the Company nor any Affiliate or the professional employees or agents of either
is in violation of any such Approval or any terms or conditions thereof, except
for such violations as would not, individually or in the aggregate, have a
Material Adverse Effect on any of the Company or any Affiliate. Each of the
Company and its Affiliates has all Approvals required for the conduct of the
business of each of the Company and its Affiliates and the occupancy and
operation, for its present uses, of the real and personal property which each of
the Company and its Affiliates owns or leases, and neither the Company nor any
Affiliate is in violation of any such Approval or the terms or conditions
thereof.

               (e) Schedule 4.14(e) sets forth a true and complete list of all
                   ----------------                                           
Approvals issued or granted to each of the Company and any Affiliate (excluding
any licenses granted to any natural person); such list contains a summary
description of each such item and, where applicable, specifies the date issued,
granted or applied for, the expiration date and the current status thereof.

               (f) All such Approvals are in full force and effect, have been
issued to and fully paid for by the holder thereof and, to the Knowledge of each
of the Company and its Affiliates, no suspension or cancellation thereof has
been threatened.

                                       22
<PAGE>
 
               (g) No such Approvals will in any way be affected by, or
terminate or lapse by reason of, the transactions contemplated by this
Agreement.

          4.15 TITLE TO ASSETS.  The Company and the Subsidiaries have good
               ---------------                                             
and valid title to or a valid leasehold interest in all of the material tangible
assets owned or leased by them, or otherwise used in or pertaining to the
business of the Company and the Subsidiaries as presently conducted, including
all material tangible assets reflected in the Company's most recent balance
sheet included in the Financial Statements and all material tangible assets
purchased or otherwise acquired by the Company or any Subsidiary since the date
of such balance sheet (except for properties and assets sold since such date in
the ordinary course consistent with past practice).  None of such material
tangible assets is subject to any material Lien except for Permitted
Encumbrances.

          4.16 PLANT, PROPERTY, AND EQUIPMENT.  To the Company's Knowledge,
               ------------------------------                              
the Leased Real Property, and other plant, property, equipment, leasehold
improvements and other material tangible assets of the business, conform in all
material respects with Applicable Law; are structurally sound with no material
defects; are in good operating condition and repair (ordinary wear and tear
excepted); and are adequate in all material respects for the purposes for which
they are being used.

          4.17 ACCOUNTS AND NOTES RECEIVABLE.  Except to the extent of
               -----------------------------                          
applicable reserves for doubtful accounts and contract reserves shown on the
Company's most recent balance sheet included in the Financial Statements, all of
the accounts, notes and other receivables owed to the Company or any Subsidiary
as of the date hereof or thereafter acquired or arising prior to the Closing
Date, constitute, and as of the Closing Date will constitute, valid and
enforceable claims (subject, as to the enforcement of remedies, to applicable
bankruptcy, reorganization, insolvency, moratorium and similar laws affecting
creditors' rights, and, with respect to the remedy of specific performance,
equitable doctrines applicable thereto) arising from bona fide transactions on
the part of the Company and the Subsidiaries and, to the Company's Knowledge,
bona fide transactions for parties other than the Company and the Subsidiary in
the ordinary course, and there are no claims, refusals to pay or other rights of
set-off against any thereof (other than ordinary course disputes that could not
in the aggregate have a Material Adverse Effect on the Company and its
Subsidiaries, taken as a whole).  None of such accounts is pledged to any third
party.  The reserve for doubtful accounts shown on the Company's most recent
balance sheet included in the Financial Statements is in accordance with GAAP.

          4.18 INDEBTEDNESS.  Schedule 4.18 sets forth a true and complete
               ------------   -------------                               
list of all indebtedness of the Company or any Subsidiary for borrowed money as
of March 1, 1997.

          4.19 REAL PROPERTY.
               ------------- 

               (a) No Owned Real Property.  Neither the Company nor any
                   ----------------------
Subsidiary has or has ever had any fee or other direct or indirect ownership
interest in any real property.

                                       23
<PAGE>
 
               (b) Leased Real Property Agreements.  Schedule 4.19(b) sets forth
                   -------------------------------   ----------------
a true and complete list of all Leased Real Property and a list of all of the
agreements (as amended) to which the Company or any Subsidiary is a party
relating thereto (the "Lease Agreements"). To the Company's Knowledge, all the
Lease Agreements are in full force and effect and are valid and enforceable
against the other parties thereto in accordance with their terms (subject, as to
the enforcement of remedies, to applicable bankruptcy, reorganization,
insolvency, moratorium and similar laws affecting creditors' rights, and, with
respect to the remedy of specific performance, equitable doctrines applicable
thereto). Neither the Company nor any Subsidiary is in default under any of the
Lease Agreements. To the Company's Knowledge, no other Person party to the Lease
Agreements is in default under any of the Lease Agreements. There are no other
agreements that concern any right, title or interest in or to the Leased Real
Property or grant to a third party the right to occupy the premises used in the
business, other than Permitted Encumbrances. The Closing will not affect the
rights to the continued use and possession of the Leased Real Property on the
terms and conditions specified in the Lease Agreements for the purposes for
which such property is now used in the business.

               (c) Leases of Real Property to Others.  To the Company's
                   --------------------------------- 
Knowledge, no Leased Real Property is subject to any lease or other right of use
of possession by any Person other than the Company or a Subsidiary.

               (d) Legal Proceedings Affecting Property.  To the Company's
                   ------------------------------------
Knowledge, there is not: (i) any planned public improvement that will result in
any charge being levied or assessed against any Leased Real Property or that
would create any encumbrance upon such property, (ii) any condemnation
proceeding with respect to any Leased Real Property, (iii) any proposal by a tax
authority to change materially the assessed value or assessment rates of any
Leased Real Property, or (iv) any other claim, suit, proceeding, order or demand
of any Governmental Authority or any Persons that could have a material adverse
impact on the value, right to develop, use or condition of any Leased Real
Property.

               (e) Disputes.  There is no currently pending material claim,
                   --------
dispute or controversy with respect to any of the Lease Agreements. To the
Company's Knowledge, no Person has raised any material claim, dispute or
controversy with respect to any of the Lease Agreements since January 1, 1995.

          4.20 EMPLOYEE PLANS AND ARRANGEMENTS.
               ------------------------------- 

               (a) There are no employment, consulting, change of control,
severance pay, continuation pay, termination pay, loans, guarantees or
indemnification agreements or other similar agreements of any nature whatsoever
(collectively, "Employment Agreements") between the Company, on the one hand,
and any current or former shareholder, officer, director, employee or Affiliate
of the Company or any consultant or agent of the Company, on the other hand,
that, as a direct result of the transactions contemplated by this Agreement, (i)
will require any payment by the Company or any consent or waiver from any
shareholder, officer, director, employee or Affiliate of the Company or any
consultant or agent 

                                       24
<PAGE>
 
of the Company, or (ii) will result in any change in the nature of any rights of
any shareholder, officer, director, employee or Affiliate of the Company or any
consultant or agent of the Company under any such Employment Agreement or other
similar agreement (including, without limitation, any accelerated payments,
deemed satisfaction of goals or conditions, new or increased benefits, or
additional or accelerated vesting).

               (b) Schedule 4.20(b) sets forth all Employee Benefit Plans and
                   ----------------
Benefit Arrangements of the Company and each Subsidiary that are currently in
effect.

               (c) Neither the Company nor any of its ERISA Affiliates sponsors
or has sponsored, maintained, contributed to, or incurred an obligation to
contribute to, any Employee Pension Benefit Plan (whether or not terminated).

               (d) Neither the Company nor any of its ERISA Affiliates sponsors
or has sponsored, maintained, contributed to, or incurred an obligation to
contribute to any Multiemployer Plan or Multiple Employer Plan (whether or not
terminated).

               (e) No agreement, commitment or obligation exists to increase
benefits under any Benefit Plan or to adopt any new Benefit Plan. Further, no
individual will accrue or receive additional benefits, service or accelerated
rights to payments of benefits under any Benefit Plan, including the right to
receive any parachute payment, as defined in Section 280G of the Code, or become
entitled to severance, termination allowance or similar payments as a result of
the transactions contemplated by this Agreement, and the Company is not a party
to any agreement or arrangement that could result in the payment of any such
benefits or payments.

               (f) No Employee Benefit Plan has participated in, engaged in or
been a party to any Prohibited Transaction, and neither the Company nor any of
its ERISA Affiliates has had asserted against it any claim for any excise tax or
penalty imposed under ERISA or the Code with respect to any Employee Benefit
Plan nor, to the knowledge of the Company, is there a basis for any such claim.
No officer, director or employee of the Company or any ERISA Affiliate has
committed a material breach of any responsibility or obligation imposed upon
fiduciaries by Title I of ERISA with respect to any Employee Benefit Plan, with
respect to which breach the Company is or could be directly or indirectly
liable.

               (g) Other than routine uncontested claims for benefits, there is
no claim pending involving any Benefit Plan by any Person against such plan or
the Company or any ERISA Affiliate, nor, to the knowledge of the Company, is any
such claim threatened. There is no pending or to the knowledge of the Company,
threatened, Proceeding involving any Employee Benefit Plan before the Internal
Revenue Service, the United States Department of Labor or any other Governmental
Authority.

               (h) There is no material violation of any reporting or disclosure
requirement imposed by ERISA or the Code with respect to any Employee Benefit
Plan.

                                       25
<PAGE>
 
               (i) Each Benefit Plan has been maintained in all material
respects, by its terms and in operation, in accordance with both its plan
documents and with ERISA, the Code and all other Applicable Laws. The Company
and its ERISA Affiliates have made full and timely payment of all amounts
required to be contributed under the terms of each Benefit Plan and Applicable
Law or required to be paid as expenses or benefits under such Benefit Plan, and
has made adequate provision for reserves to satisfy contributions and payments
not yet made because they are not yet due under the terms of the Benefit Plan or
Applicable Law. Each Employee Benefit Plan that is intended to be qualified
under Section 401(a) of the Code is and has always been so qualified, and either
has received a favorable determination letter with respect to such qualified
status from the IRS or has filed a request for such a determination letter with
the IRS within the remedial amendment period such that such determination of
qualified status will apply from and after the effective date of any such
Employee Benefit Plan.

               (j) With respect to any Group Health Plans maintained by the
Company or its ERISA Affiliates, whether or not for the benefit of the Company's
employees, the Company and its ERISA Affiliates have complied in all material
respects with the provisions of COBRA. The Company is not obligated to provide
health care benefits of any kind to its retired or former employees or their
dependents pursuant to any agreement or understanding.

               (k) Except pursuant to the provisions of COBRA, neither the
Company nor any ERISA Affiliate maintains any Employee Benefit Plan that
provides benefits described in Section 3(1) of ERISA to any former employees or
retirees, or the beneficiaries of any of them, of the Company or its ERISA
Affiliates.

               (l) The Company has made available to the Investor a copy of (i)
the three (3) most recently filed Federal Form 5500 series and accountant's
opinion, if applicable, for each Employee Benefit Plan other than Multiemployer
Plans. All information provided by the Company, as applicable, to any individual
in connection with the preparation of any such opinion or report was true,
correct and complete in all respects.

               (m) Each Benefit Plan can be amended or terminated at any time
without approval from any Person, without advance notice, and without any
liability other than for benefits accrued prior to such amendment or
termination.

               (n) In connection with any Employee Pension Benefit Plan
currently maintained by the Company or any ERISA Affiliate, (i) there have been
no accumulated funding deficiencies (within the meaning of Code Section 412),
whether or not waived, (ii) there have been no reportable events (within the
meaning of ERISA Section 4043(b)), and (iii) no circumstances exist that would
warrant a termination of any such plan by the Pension Benefit Guaranty
Corporation pursuant to ERISA Section 4042. No Employee Pension Benefit Plan has
been terminated within the last five years in other than a standard termination
under Section 4041(b) of ERISA and all liabilities under such plans have been
adequately and properly discharged.

                                       26
<PAGE>
 
          4.21 EMPLOYEES.
               --------- 

               (a) Neither the Company nor any Subsidiary has or has ever had
any employees represented by collective bargaining agents.

               (b) The Company and each Subsidiary has complied in all material
respects with all Applicable Laws respecting employment and employment
practices, terms and conditions of employment, and wages and hours.  Neither the
Company nor any Subsidiary has or could reasonably be expected to have any
material Liability to any former employee or individual who provided services to
the Company in a capacity other than as an employee in circumstances where such
Liability arises or would arise under the express terms of a Benefit Plan.  No
charges of employment or labor law violations exist or, to the Company's
Knowledge, are threatened, before any Governmental Authority concerning any
current, prospective or former employees or independent contractors of the
Company or any Subsidiary, and no valid basis exists for any such charge.

               (c) There is no strike, labor dispute, work slowdown or work
stoppage actually pending or, to the Knowledge of the Company, threatened,
against the Company or any of its Subsidiaries or, to the Knowledge of the
Company, any of its key subcontractors or suppliers. No collective bargaining
representation petition is pending or, to the Knowledge of the Company,
threatened against the Company or any Subsidiary.

          4.22 INSURANCE.  Each of the Company and each Subsidiary has in
               ---------                                                 
full force and effect and will maintain (i) insurance on its assets and
activities of a type customarily insured, covering property damage and loss of
income by fire or other casualty, in amounts customary for companies similarly
situated as the Company or the Subsidiary, as the case may be, and (ii)
insurance protection against all Liabilities, claims and risks against which,
and in such amounts as, are customary for companies similarly situated as the
Company to insure.

          4.23 ENVIRONMENTAL COMPLIANCE.
               ------------------------ 

               (a) The Company and each Subsidiary has obtained all approvals,
authorizations, certificates, consents, licenses, orders and permits or other
similar authorizations of any Governmental Authority, or from any other Person,
that are required under any Environmental Law and relate to its business, its
assets or its products.  Schedule 4.23(a) sets forth (i) all permits, licenses
                         ----------------                                     
and other authorizations issued under any Environmental Law to the Company or
any Subsidiary relating to its business, its assets or its products and (ii) a
description and good faith estimate by the Company of the costs of all capital
expenditures that may be necessary to maintain or continue to be qualified for
each such permit, license or other authorization.

               (b) The Company and each Subsidiary is in compliance in all
material respects with all terms and conditions of all approvals,
authorizations, certificates, consents, licenses, orders and permits or other
similar authorizations of any Governmental Authority (and all other Persons)
required under all Environmental Laws and used in its business or that relate to
its assets, and is also in compliance in all material respects with all 

                                       27
<PAGE>
 
other limitations, restrictions, conditions, standards, requirements, schedules
and timetables required or imposed under all Environmental Laws.

               (c) There is no pending or, to the Company's Knowledge,
threatened, proceeding, citation or notice of violation under any Environmental
Law relating to the Company or any Subsidiary, or any of the equipment, business
or assets of the Company or any Subsidiary.

               (d) There are no past or present events, conditions,
circumstances, activities, practices, incidents, actions, omissions or plans
that may interfere with or prevent continued compliance by the Company or any
Subsidiary with any Environmental Law, or that may give rise to any Liability,
or otherwise form the basis of any claim, action, demand, suit, proceeding,
hearing, study or investigation (1) under any Environmental Law, (2) based on or
related to the manufacture, processing, distribution, use, treatment, storage,
disposal, transport or handling, or the emission, discharge, release or
threatened release of any Hazardous Material, or (3) resulting from exposure to
workplace hazards.

               (e) Neither the Company nor any Subsidiary is required to make
any capital or other expenditures to comply with any Environmental Law nor is
there any reasonable basis on which any Governmental Authority could take any
action that would require any such capital expenditures.

          4.24 NO UNDISCLOSED LIABILITIES.  There are no Liabilities of the
               --------------------------                                  
Company or any Subsidiary required to be reflected on a balance sheet prepared
in accordance with GAAP except: (a) Liabilities accrued or reserved on the
Financial Statements; and (b) Liabilities incurred in the ordinary course of
business since the most recent Financial Statement that are not individually or
in the aggregate material to the Company or any Subsidiary.

          4.25 TAXES.
               ----- 

               (a) All Company Tax Returns have been properly and timely filed
and all such Tax Returns are correct and complete in all material respects. Each
affiliated group with which any of the Company and its Subsidiaries files a
consolidated or combined Tax Return has filed all such Tax Returns that it was
required to file for each taxable period during which any of the Company and its
Subsidiaries was a member of the group. All such consolidated and combined Tax
Returns were correct and complete in all material respects.

               (b) All Taxes due and payable by the Company and/or its
Subsidiaries (whether or not shown on any Tax Return) have been timely paid in
full. All income Taxes owed by any affiliated group with which any of the
Company and its Subsidiaries files a consolidated or combined Tax Return
(whether or not shown on any Tax Return) have been paid for each taxable period
during which any of the Company and the Subsidiaries was a member of the group.

                                       28
<PAGE>
 
               (c) There is no (nor is there any pending request for an)
agreement, waiver or consent providing for an extension of time with respect to
the assessment or collection of, or statute of limitations regarding, any Taxes
or the filing of any Tax Returns that is currently in effect and no power of
attorney granted by or with respect to the Company or any Subsidiary with
respect to any Tax matter is currently in force.

               (d) There is no pending audit, examination or investigation with
respect to any Company Tax Returns, nor is there pending any notice of the
initiation thereof; there is no action, suit, proceeding (administrative or
court), claim, demand, deficiency or additional assessment pending or, to the
Knowledge of Company, threatened with respect to any Company Tax Returns.

               (e) The Company and its Subsidiaries have withheld all Taxes
required to have been withheld and paid by them on their behalf in connection
with amounts paid or owing to any employee, independent contractor, creditor,
stockholder, or other third party, and such withheld Taxes have either been duly
paid to the proper Governmental Authority or set aside in accounts for such
purpose.

               (f) None of the Company and its Subsidiaries (A) has been a
member of any affiliated group filing a consolidated federal income Tax Return
(other than a group the common parent of which is the Company) and (B) has any
liability for the Taxes of any Person as defined in Section 7701(a)(1) of the
Code (other than the Company and its Subsidiaries) under Treas. Reg. (S) 1.1502-
6 (or any similar provision of state, local, or foreign tax), as a transferee or
successor, by contract, or otherwise.

               (g) The charges, accruals and reserves for Taxes (including
deferred Taxes) currently reflected on the Financial Statements in accordance
with GAAP are adequate to cover all unpaid Taxes accruing or payable by the
Company and its Subsidiaries in respect of taxable periods that end on or before
the Closing Date and for any taxable periods that begin before the Closing Date
and end thereafter to the extent such Taxes are attributable to the portion of
such period ending on the Closing Date (determined under the closing of the
books method of allocation).

               (h) Neither the Company nor any Subsidiary has agreed, requested,
or been requested to make, or is required to make, any adjustment to taxable
income for any taxable period after the Closing under Section 481(a) or 263A of
the Code or any comparable provision of state or foreign tax laws by reasons of
a change in accounting method or otherwise.

               (i) There are no encumbrances (other than Permitted Encumbrances)
on any asset or property of the Company or any Subsidiary arising out of,
connected with, or related to any Tax imposed on the Company, its Subsidiaries,
or any of their businesses or properties.

               (j) The Company is not a party to, is not bound by, and has no
obligation (or potential obligation) under any Tax Agreement.

                                       29
<PAGE>
 
               (k) Neither the Company nor any Subsidiary is a party to any
agreement with an Affiliate relating to a foreign sales corporation or "FSC"
within the meaning of Section 922 of the Code; or a domestic international sales
corporation or "DISC" within the meaning of Section 992 of the Code.

               (l) All Tax years (or periods) with respect to the Federal income
Tax Liabilities of the Company, and its assets or operations are closed.

               (m) Other than the elections made in the Tax Returns provided to
or made available to the Investor, no agreement, consent, or election for
foreign, Federal, state or local tax purposes that would affect or be binding on
the Company or any Subsidiary after the Closing has been filed or entered into
by the Company or any Subsidiary. No consent has been filed with respect to the
Company or any Subsidiary under Section 341(f) of the Code.

               (n) Schedule 4.25 lists all federal, state, local, and foreign
                   -------------
Tax Returns that have been audited, and indicates those Tax Returns that
currently are the subject of audit, other than (i) Tax Returns relating to
closed years, and (ii) Tax Returns that have been audited, where such audit did
not result in any material change in any tax due from Company or any Subsidiary
to any Governmental Authority. Correct and complete copies of all federal Tax
Returns, examination reports, and statements of deficiencies assessed against or
agreed to by the Company or any of its Subsidiaries since January 1, 1995 have
been delivered or made available to Investor.

          4.26 NO RESEARCH GRANTS.  Neither the Company nor any of its
               ------------------                                     
Subsidiaries since inception has provided any research, educational or study
grants or other financial support of any kind to any hospital, physician, or
health care provider.

          4.27 CERTAIN REGULATORY MATTERS.  Neither the Company nor any of
               --------------------------                                 
its Subsidiaries since inception has received notice that the Company or any
Subsidiary has been, or to the Company's knowledge has been, the subject of any
investigative proceeding before any federal or state regulatory authority or the
agent of any such authority, including without limitation federal and state
health authorities.

          4.28 TRANSACTIONS WITH AFFILIATES.  Except for regular salary
               ----------------------------                            
payments and fringe benefits under an individual's compensation package with the
Company or any Subsidiary, none of the officers, employees, directors or other
Affiliates of the Company or any Subsidiary or members of their families is a
party to any agreements, understandings, indebtedness or proposed transactions
with the Company or any Subsidiary or is directly interested in any Contract
with the Company or any Subsidiary.  Neither the Company nor any Subsidiary has
guaranteed or assumed any obligations of their respective officers, directors,
employees or other Affiliates, or members of any of their families.  To the
Company's Knowledge, none of such Persons has any direct or indirect ownership
interest in any firm or entity with which the Company or any Subsidiary is
affiliated or with which the Company or any Subsidiary has a business
relationship, or any entity that competes with the 

                                       30
<PAGE>
 
Company or any Subsidiary, other than publicly traded companies that may compete
with the Company or any Subsidiary.

          4.29 REPORTS; SEC DOCUMENTS.  All material reports, documents and
               ----------------------                                      
notices required to be filed, maintained or furnished with or to any
Governmental Authority by the Company or any Subsidiary have been so filed,
maintained or furnished.  All such reports, documents and notices were complete
and correct in all material respects on the date filed (or were corrected in or
superseded by a subsequent filing such that no Liabilities exist with respect to
the original filing, maintenance or furnishing thereof).  The Company has
heretofore furnished to or made available to the Investor complete copies of all
registration statements, reports and proxy statements, including amendments
thereto, filed with the Securities and Exchange Commission (the "SEC") since
January 1, 1995 and prior to the date of this Agreement (collectively, the "SEC
Documents").  None of the SEC Documents contains any untrue statement of a
material fact or omits to state a material fact necessary to make the statements
contained therein not misleading.

          4.30 DISCLOSURE.  Neither this Agreement nor the other agreements
               ----------                                                  
referred to in this Agreement nor any other statements or certificates made or
delivered in connection herewith contains any untrue statement of a material
fact or omits to state a material fact necessary to make the statements herein
or therein, in light of the circumstances in which they are made, not
misleading.

          4.31 BROKERS.  Neither the Company nor any Subsidiary has dealt
               -------                                                   
with, or incurred liability for a fee to, any finder, broker, investment banker
or financial advisor in connection with any of the transactions contemplated by
this Agreement or the negotiations looking toward the consummation of such
transactions.

          4.32 CERTAIN ADDITIONAL REGULATORY MATTERS.  Neither the Company
               -------------------------------------                      
nor any Affiliate, nor the officers, directors, employees or agents of any of
the Company or any Affiliate, and none of the Persons who provide professional
services under agreements with any of the Company or any Affiliate as agents of
such entities have engaged in any activities which are prohibited, or are cause
for civil penalties or mandatory or permissive exclusion from Medicare or
Medicaid, under (S)(S) 1320a-7, 1320a-7a, 1320a-7b, or 1395nn of Title 42 of the
United States Code, the federal Civilian Health and Medical Plan of the
Uniformed Services statute ("CHAMPUS"), or the regulations promulgated pursuant
to such statutes or regulations or related state or local statutes or which are
prohibited by any private accrediting organization from which the Company or any
of its Affiliates seeks accreditation or by generally recognized professional
standards of care or conduct, including but not limited to the following
activities:

               (a) knowingly and willfully making or causing to be made a false
statement or representation of a material fact in any application for any
benefit or payment;

                                       31
<PAGE>
 
               (b) knowingly and willfully making or causing to be made any
false statement or representation of a material fact for use in determining
rights to any benefit or payment;

               (c) presenting or causing to be presented a claim for
reimbursement under CHAMPUS, Medicare, Medicaid or any other State Health Care
Program or Federal Health Care Program that is (i) for an item or service that
the Person presenting or causing to be presented knows or should know was not
provided as claimed, or (ii) for an item or service and the Person presenting
knows or should know that the claim is false or fraudulent;

               (d) knowingly and willfully offering, paying, soliciting or
receiving any remuneration (including any kickback, bribe or rebate), directly
or indirectly, overtly or covertly, in cash or in kind (i) in return for
referring, or to induce the referral of, an individual to a Person for the
furnishing or arranging for the furnishing of any item or service for which
payment may be made in whole or in part by CHAMPUS, Medicare or Medicaid, or any
other State Health Care Program or any Federal Health Care Program, or (iii) in
return for, or to induce, the purchase, lease, or order, or the arranging for or
recommending of the purchase, lease, or order, of any good, facility, service,
or item for which payment may be made in whole or in party by CHAMPUS, Medicare
or Medicaid or any other State Health Care Program or any Federal Health Care
Program; or

               (e) knowingly and willfully making or causing to be made or
inducing or seeking to induce the making of any false statement or
representation (or omitting to state a material fact required to be stated
therein or necessary to make the statements contained therein not misleading) or
a material fact with respect to (i) the conditions or operations of a facility
in order that the facility may qualify for CHAMPUS, Medicare, Medicaid or any
other State Health Care Program certification or any Federal Health Care Program
certification, or (ii) information required to be provided under (S) 1124(A) of
the Social Security Act ("SSA") (42 U.S.C. (S) 1320a-3).

          4.33 MEDICARE/MEDICAID PARTICIPATION.  Neither the Company nor any
               -------------------------------                          
other Person who after the Closing will have a direct or indirect ownership
interest (as those terms are defined in 42 C.F.R. (S) 1001.1001(a)(2)) in the
Company or any Affiliate of 5% or more (other than Investor), or who will have
an ownership or control interest (as defined in SSA (S) 1124(a)(3), or any
regulations promulgated thereunder) in the Company or any Affiliate (other than
Investor), or who will be an officer, director, agent (as defined in 42 C.F.R.
(S) 1001.1001(a)(2)), or managing employee (as defined in SSA (S) 1126(b) or any
regulations promulgated thereunder) of the Company or any Affiliate and (ii) to
the best Knowledge of the Company and any Affiliate, no Person or entity with
any relationship with such entity (including without limitation a parent company
or shareholder of, or partner in an Affiliate) who after the Closing will have
an indirect ownership interest (as that term is defined in 42 C.F.R. (S)
1001.1001(a)(2)) in the Company or any Affiliate of 5% or more (other than
Investor): (1) has had a civil monetary penalty assessed against it under (S)
1128A of the SSA or any regulations promulgated thereunder; (2) has been
excluded from participation under the 

                                       32
<PAGE>
 
Medicare program or a state health care program as defined in SSA (S) 1128(h) or
any regulations promulgated thereunder ("State Health Care Program") or a
federal health care program as defined in SSA (S) 1128B(f) ("Federal Health Care
Program"); or (3) has been convicted (as that term is defined in 42 C.F.R. (S)
1001.2) of any of the following categories of offenses as described in SSA (S)
1128(a) and (b)(1), (2), (3) or any regulations promulgated thereunder:

               (a) criminal offenses relating to the delivery of an item or
service under Medicare or any State Health Care Program or any Federal Health
Care Program;

               (b) criminal offenses under federal or state law relating to
patient neglect or abuse in connection with the delivery of a health care item
or service;

               (c) criminal offenses under federal or state law relating to
fraud, theft, embezzlement, breach of fiduciary responsibility, or other
financial misconduct in connection with the delivery of a health care item or
service or with respect to any act or omission in a program operated by or
financed in whole or in part by any federal, state or local governmental agency;

               (d) federal or state laws relating to the interference with or
obstruction of any investigation into any criminal offense described in (a)
through (c) above; or

               (e) criminal offenses under federal or state law relating to the
unlawful manufacture, distribution, prescription or dispensing of a controlled
substance.

          5.   REPRESENTATIONS AND WARRANTIES OF THE INVESTOR.  The Investor
               ----------------------------------------------               
represents and warrants to the Company as follows:

          5.1  ACCREDITED INVESTOR.  The Investor is an "accredited investor"
               -------------------                                 
as defined by the SEC's Rule 501 under the Securities Act.

          5.2  INVESTMENT INTENT.  The Investor is acquiring the Purchased
               -----------------                                          
Stock, and will acquire the other Securities, as applicable, for its own account
or one of its affiliates, and not with a present view to, or for sale in
connection with any, distribution thereof, provided that the disposition of the
Investor's property shall at all times be and remain within its control.

          5.3  CERTAIN SECURITIES LAW ISSUES.  The Investor understands that
               -----------------------------                           
the shares of Purchased Stock and the other Securities are or will be
"restricted securities" under the federal securities laws inasmuch as they are
being acquired from the Company in a transaction not involving a public offering
and that under such laws and applicable regulations such securities may be
resold without registration under the Securities Act only in certain limited
circumstances.

                                       33
<PAGE>
 
          5.4  AUTHORIZATION.  All corporate action on the part of the Investor 
               -------------                                          
necessary for the authorization, execution, delivery and performance by the
Investor of this Agreement and the other agreements referred to in this
Agreement, the purchase of the shares of Purchased Stock, and the performance of
all of the Investor's obligations hereunder and thereunder have been taken or
will be taken prior to the Closing. This Agreement, when executed and delivered
by the Investor, will constitute a valid and binding obligation of the Investor,
enforceable against the Investor in accordance with its terms, subject to
bankruptcy, insolvency, reorganization, moratorium and other laws of general
application affecting the rights and remedies of creditors, and general
principles of equity regardless of whether applied in a proceeding in equity or
at law. This Agreement and the other agreements referred to herein have been,
and at Closing will be, duly executed and delivered by the Investor. 

          5.5  BROKERS.  The Investor has not dealt with, or incurred Liability
               -------                                               
for a fee to, any finder, broker, investment banker or financial advisor in
connection with any of the transactions contemplated by this Agreement or the
negotiations looking toward the consummation of such transactions.

     6.   CONDITIONS TO INVESTOR'S OBLIGATIONS AT CLOSING. The obligations
          -----------------------------------------------                 
of the Investor to purchase and pay for the shares of Purchased Stock and the
other obligations of the Investor under this Agreement are subject to the
fulfillment at or prior to the Closing of the following conditions, any of which
may be waived in writing in whole or in part by the Investor:

          6.1  REPRESENTATIONS AND WARRANTIES.  On the date of the Closing,
               ------------------------------                              
the representations and warranties of the Company contained in Section 4 shall
be true and correct in all respects with the same force and effect as though
such representations and warranties had been made at and as of the time of
Closing, except to the extent that any changes therein are specifically
contemplated by this Agreement.

          6.2  PERFORMANCE.  The Company shall have performed and complied
               -----------                                                
with all agreements, obligations and conditions contained in this Agreement that
are required to be performed or complied with by it at or prior to the Closing.

          6.3  NO INJUNCTION.  There shall not be in effect any order, decree or
               -------------                                          
injunction of a court or agency of competent jurisdiction which enjoins or
prohibits consummation of the transactions contemplated hereby.

          6.4  QUALIFICATIONS; LEGAL INVESTMENT.  All authorizations, approvals,
               --------------------------------                      
or permits, if any, of any Governmental Authority or any other Person that are
required in connection with the lawful sale and issuance of the shares of the
Purchased Stock and the consummation of the transactions contemplated by this
Agreement shall have been duly obtained and shall be effective on and as of the
Closing. No stop order or other order enjoining the sale of the shares of the
Purchased Stock or the proposed issuance of the Conversion Stock relating
thereto shall have been issued and no proceedings for such purpose shall be
pending or, to the knowledge of the Company and the Investor, threatened by the
SEC, the California Commissioner of Corporations or any commissioner of
corporations or 

                                       34
<PAGE>
 
similar officer of any state having jurisdiction over this transaction. At the
time of the Closing, the sale and issuance of the shares of Purchased Stock and
the Conversion Stock relating thereto shall be legally permitted by all laws and
regulations to which the Company and the Investor are subject.

          6.5  COMPLETION OF REVIEW OF THE COMPANY.  The Investor shall have
               -----------------------------------                     
completed and been satisfied in its sole discretion with its review of the
business, operations, properties, assets, liabilities, prospects and condition,
financial and otherwise, of the Company and the Subsidiaries.

          6.6  CERTIFICATES OF DESIGNATION.  The Company shall have adopted
               ---------------------------                                 
and duly filed with the Secretary of State of Delaware the Series D Certificate
of Designation in the form set forth in Exhibit C to this Agreement.  The
                                        ---------                        
Company shall adopt and duly file with the Secretary of State of Delaware the
Series E Certificate of Designation in the form set forth in Exhibit D to this
                                                             ---------        
Agreement.

          6.7  CLOSING DOCUMENTS.  The Company shall have delivered to the
               -----------------                                          
Investor, unless waived in writing by the Investor:

               (a) copies (certified by the Secretary of the Company) of the
resolutions duly adopted by the Board of Directors of the Company, authorizing
the execution, delivery and performance of this Agreement and the other
agreements contemplated hereby;

               (b) a copy (certified by the Secretary of the State of Delaware)
of the Certificate of Incorporation as amended through the date of the Closing
and a copy (certified by the Secretary of the Company) of the Company's Bylaws
as amended through the date of the Closing; and

               (c) an executed copy of the Restated Note;

               (d) an executed copy of the Eleventh Amendment;

               (e) such other documents relating to the transactions
contemplated by this Agreement as the Investor or the Investor's counsel may
reasonably request.

          6.9  OPINIONS OF COMPANY CORPORATE AND REGULATORY COUNSEL.  The
               ----------------------------------------------------      
Investor shall have received the opinion of Irell & Manella LLP, corporate
counsel to the Company, in the form set forth as Exhibit E hereto.  The Investor
                                                 ---------                      
shall have received the opinions of Reed, Smith Shaw & McClay and Anderson,
Walker & Reichert, regulatory counsel to the Company, in the forms set forth
respectively as Exhibit F-1 and Exhibit F-2 hereto.
                -----------     -----------        

          6.10 MATERIAL ADVERSE CHANGES.  Since the date of the Bridge Loan
               ------------------------                                    
Agreement, there shall not have been any material adverse change in the Company
or any Subsidiary, and no event (including a breach of any agreement to which
the Company or any 

                                       35
<PAGE>
 
Subsidiary is a party) shall have occurred, that may, in the sole judgment of
the Investor, result in such a material adverse change.

     7.   CONDITIONS OF THE COMPANY'S OBLIGATIONS AT CLOSING.  The obligations
          --------------------------------------------------      
of the Company under this Agreement are subject to the fulfillment at or prior
to the Closing of the following conditions, any of which may be waived in
writing in whole or in part by the Company:

          7.1  REPRESENTATIONS AND WARRANTIES.  On the date of the Closing, the
               ------------------------------                              
representations and warranties of the Investor contained in Section 5 shall be
true and correct in all respects with the same force and effect as though such
representations and warranties had been made at and as of the time of Closing,
except to the extent that any changes therein are specifically contemplated by
this Agreement.

          7.2  PERFORMANCE.  The Investor shall have performed and complied with
               -----------                                                 
all agreements, obligations and conditions contained in this Agreement that are
required to be performed or complied with by such Investor on or before the
Closing, including payment to the Company of the Purchase Price set forth in
Section 2.2(a) of this Agreement.

          7.3  NO INJUNCTION.  There shall not be in effect any order, decree or
               -------------                                          
injunction of a court or agency of competent jurisdiction which enjoins or
prohibits consummation of the transactions contemplated hereby.

          7.4  QUALIFICATIONS; LEGAL INVESTMENT.  All authorizations, approvals,
               --------------------------------                      
or permits, if any, of any Governmental Authority that are required in
connection with the lawful sale and issuance of the shares of Purchased Stock
and consummation of the transactions contemplated by this Agreement and the
other agreements referred to herein shall have been duly obtained and shall be
effective on and as of the Closing. No stop order or other order enjoining the
sale of the shares of Purchased Stock or the proposed issuance of the Conversion
Stock relating thereto shall have been issued and no proceedings for such
purpose shall be pending or, to the knowledge of the Company or the Investor,
threatened by the SEC, the California Commissioner of Corporations or any
commissioner of corporations or similar officer of any state having jurisdiction
over this transaction. At the time of the Closing, the sale and issuance of the
shares of the Purchased Stock and the Conversion Stock relating thereto shall be
legally permitted by all laws and regulations to which the Company and the
Investor are subject.

     8.   COVENANTS.
          --------- 

          8.1  BEST EFFORTS.  Subject to the terms and conditions herein
               ------------                                             
provided, the parties agree to use their best commercially reasonable efforts to
cause all actions, and to do, or cause to be done, all things necessary, proper
or advisable under Applicable Law to consummate and make effective the
transactions contemplated by this Agreement.

                                       36
<PAGE>
 
          8.2  CONVERSION STOCK.  The Company shall at all times keep available
               ----------------                                      
out of its authorized but unissued shares of Common Stock, for the purpose of
effecting the conversion of the shares of Series D Preferred Stock and the
shares of Series E Preferred Stock, such number of its duly authorized shares of
Common Stock as shall be sufficient to effect the conversion of the shares of
Series D Preferred Stock and Series E Preferred Stock from time to time
outstanding. If at any time the number of authorized but unissued shares of
Common Stock shall not be sufficient to effect the conversion of the then
outstanding shares of Series D Preferred Stock and Series E Preferred Stock, the
Company shall forthwith take such corporate action as may be necessary to
increase its authorized but unissued shares of Common Stock to such number of
shares as shall be sufficient for such purpose.

          8.3  RESTRICTIVE AGREEMENTS PROHIBITED.  The Company shall not become
               ---------------------------------                        
a party to any agreement which by its terms violates the terms of this
Agreement, the Restated Note, the Note Purchase Agreement (as defined below),
the terms of the Series D Preferred Stock as set forth in the Series D
Certificate of Designation, or the terms of the Series E Preferred Stock as set
forth in the Series E Certificate of Designation.

          8.4 COMPLIANCE WITH ELEVENTH AMENDMENT AND RESTATED NOTE. The Company
              ----------------------------------------------------
will comply in all respects with the terms of the Note Purchase Agreement dated
as of April 14, 1989, as amended to the date hereof (including without
limitation as amended by the Eleventh Amendment) (the "Note Purchase Agreement")
and the Restated Note. Without limiting the foregoing, upon a request by
Investor to convert all or a portion of the principal amount of indebtedness
owing to the Investor under the Restated Note to Series E Preferred Stock (under
the terms and conditions set forth in the Eleventh Amendment, the Restated Note,
and the Series E Certificate of Designation), the Company promptly will issue
the applicable amount of such Series E Preferred Stock to the Investor.

 
          8.5  CERTAIN REGULATORY MATTERS.
               -------------------------- 
 
               (a) The operations of the Company and its Affiliates will be
conducted in accordance with all Applicable Laws, including, without limitation,
all such laws, regulations, orders and requirements promulgated by any
Governmental Authority or relating to consumer protection, equal opportunity,
health care industry regulation, third party reimbursement (including Medicare
and Medicaid), environmental protection, fire, zoning and building and
occupational safety matters, except for violations that individually or in the
aggregate would not and, insofar as may reasonably be foreseen, in the future
will not, have a Material Adverse Effect on the Company or any Subsidiary.
 
               (b) Without limiting the generality of the foregoing, the
operations of the Company and its Affiliates will be conducted in accordance
with all laws, regulations, orders and requirements relating to health care
industry regulation and third party reimbursement (including Medicare and
Medicaid).

                                       37
<PAGE>
 
               (c) Without limiting the generality of the foregoing, the Company
and all Affiliates shall comply in all material respects with all directives,
orders, instructions, bulletins and other announcements received from third
party payors and their agents (including without limitation Medicare carriers
and fiscal intermediaries) regarding participation in third party payment
programs, and including without limitation preparation and submission of claims
for reimbursement. Nothing in this Section 8.5 shall be construed as or is
intended to create any third party beneficiaries.
 
               (d) The Company shall provide written notice to the Investor
within ten (10) Business Days after acquiring any partnership interest, limited
liability company interest, or other equity interest in any Subsidiary not
listed on Schedule 4.3 hereto. Such notice shall contain a description of the
Subsidiary and the equity interest acquired by the Company in such Subsidiary.
Nothing in this Section 8.5(d) shall be construed to derogate from any other
obligations of the Company set forth in this Agreement, including without
limitation the restrictions on Investments set forth in Section 8.10 hereof.

          8.6  FINANCIAL STATEMENTS AND INFORMATION.  The Company will furnish
               ------------------------------------                   
to the Investor and to any of its Affiliates, so long as the Investor or such
Affiliates shall hold any Securities, and to each other institutional holder of
any Securities so long as such Securities remain Registrable Securities (such a
holder in any such case being hereinafter called an "Eligible Holder"):

               (a) Quarterly Financial Statements. As soon as available and in
any event within 45 days after the end of each of the first three fiscal
quarterly periods of each Fiscal Year of the Company, the Company's quarterly
report on Form 10-Q as filed with the Securities and Exchange Commission.

               (b) Annual Financial Statements.  As soon as available and in any
event within 120 days after the end of each Fiscal Year of the Company, the
Company's Annual Report on Form 10-K and related Annual Report to Shareholders
as filed with the Securities and Exchange Commission.

               (c) SEC Reports; Mailings to Shareholders. Promptly after sending
or making available or filing of the same, copies of all registration
statements, proxy statements, financial statements and reports on forms 10-K, 
10-Q and 8-K (or any comparable successor form), if any, which the Company or
any of its Subsidiaries shall file with the Securities and Exchange Commission
or any national securities exchange. In addition, (i) at the same time that the
Company makes a mailing to its shareholders generally and (ii) promptly after
the Company issues a press release, the Company shall provide a copy of the same
to each Eligible Holder.

               (d) Notice of Default or Claimed Default. Promptly upon (and in
any event within five (5) Business Days of) any officer of the Company obtaining
knowledge of any condition or event which constitutes an Event of Default or
Default under the Company's Senior Notes due 2003 (the "Senior Secured Notes"),
or that the holder of any 

                                       38
<PAGE>
 
such Senior Secured Note has given any written notice or taken any other action
with respect to a claimed condition or event which constitutes such an Event of
Default or Default, or that any Person has given any written notice to the
Company or any of its Subsidiaries or taken any other action with respect to a
claimed default or event or condition of the type referred to in Section
12.01(e) of the Note Purchase Agreement, an officers' certificate describing the
same and the period of existence thereof and what action the Company has taken,
is taking and proposes to take with respect thereto.

               (e) Merger.  At least five (5) Business Days prior to any merger
or consolidation by the Company or any Subsidiary, notice of such merger or
consolidation, together with an officers' certificate to the effect that such
merger or consolidation will be done in compliance with the provisions of
Section 8.7 hereof.

               (f) Bankruptcy.  Promptly upon receiving notice of any Person's
seeking to obtain or threatening to seek to obtain a decree or order for relief
with respect to the Company or any of its Subsidiaries in an involuntary case
under any applicable bankruptcy, insolvency, or other similar law now or
hereafter in effect, a written notice thereof specifying what action the Company
or such Subsidiary is taking or proposes to take with respect thereto.

               (g) Additional Information. With reasonable promptness, such
other information, including financial statements and computations, relating to
the performance of the provisions of this Agreement or the affairs of the
Company or any of its subsidiaries as the Investor or any such Eligible Holder
may from time to time reasonably request.

               The Company will furnish to each Eligible Holder, at the time it
furnishes each set of financial statements pursuant to paragraph (a) or (b)
above, an officers' certificate to the effect that no Event of Default under the
Note Purchase Agreement has occurred and is continuing (or, if any such Event of
Default has occurred and is continuing, describing the same in reasonable
detail, the period of existence thereof and describing the action that the
Company has taken and proposes to take with respect thereto).

               The Company will keep at its principal executive office a true
copy of this Agreement (as at the time in effect), and cause the same to be
available for inspection at said office during normal business hours by the
Investor, any Eligible Holder, or any prospective purchaser of any of the
Securities.

          8.7  MERGER.  The Company covenants and agrees that so long as, and at
               ------                                                    
any time that, (i) any shares of Preferred Stock are held by the Investor or any
Eligible Holder, and (ii) the IRR Trigger Date has not occurred, the Company:

               (a) will not consolidate with or merge into any Person, or permit
any other Person to merge into it, or sell, lease, transfer or otherwise dispose
of all or substantially all of its assets, unless, in any such case, the
following conditions shall be fulfilled:

                                       39
<PAGE>
 
     (i)   such successor Person (if not the Company) or the Person purchasing
     or otherwise acquiring all or substantially all of such assets shall be a
     corporation incorporated within the United States of America;

     (ii)  the obligations of the Company under this Agreement shall be
     expressly assumed by such successor corporation (if not the Company) or the
     Person purchasing or otherwise acquiring all or substantially all of such
     assets;

     (iii) immediately after giving effect to such consolidation or merger or
     sale or other disposition of assets (and the assumption provided for in
     clause (ii) above), no Default or Event of Default shall have occurred and
     be continuing with respect to any Funded Debt;

     (iv)  immediately after giving effect to such consolidation or merger or
     sale or other disposition of assets, such successor corporation (whether or
     not the Company) or the Person purchasing or otherwise acquiring all or
     substantially all of such assets could incur additional Indebtedness in
     compliance with Section 8.9 hereof; and

     (v)   the Net Worth of the surviving entity of such consolidation or
     merger, or other successor to the Company pursuant hereto, or the Person
     purchasing or otherwise acquiring all or substantially all of such assets
     on a pro forma basis after giving effect to such transaction is not less
     than the Net Worth of the Company immediately preceding the transaction.

               (b) will not permit any Majority-Owned Subsidiary to consolidate
     with or merge into any other Person (other than the Company), or permit any
     other Person to merge into a Majority-Owned Subsidiary, unless the
     following conditions shall be fulfilled:

     (i)   prior to and immediately after giving effect to such consolidation or
     merger, no Default or Event of Default shall have occurred and be
     continuing under the Note Purchase Agreement;

     (ii)  immediately after giving effect to such consolidation or merger, the
     surviving entity of such consolidation or merger could incur additional
     funded Indebtedness in compliance with Section 8.9 hereof;

     (iii) if the surviving corporation is a Majority-Owned Subsidiary, the Net
     Worth of the surviving entity of such consolidation or merger, on a pro
     forma basis after giving effect to such transaction, is not less than the
     Net Worth of the Majority-Owned Subsidiary immediately preceding the
     transaction; and

                                       40
<PAGE>
 
     (iv)  either the surviving entity is a Majority-Owned Subsidiary, or, if
     the surviving entity is not a Majority-Owned Subsidiary, such merger shall
     be treated as a sale of stock of such Majority-Owned Subsidiary and each
     and every condition required to be satisfied in connection with a sale by
     the Company of the capital stock of a Majority-Owned Subsidiary as an
     entirety set out in Section 8.13 hereof shall be satisfied.

          8.8. LIMITATIONS ON LIENS. The Company covenants and agrees that so
               --------------------                                       
long as, and at any time that, (i) any shares of Preferred Stock are held by
the Investor or any Eligible Holder, and (ii) the IRR Trigger Date has not
occurred, the Company will not, and will not permit any Majority-Owned
Subsidiary to, cause, or incur or suffer to be incurred, any Lien on its or
their property or assets (including any document or instrument in respect of
goods or accounts receivable) of the Company or any Majority-Owned Subsidiary,
whether now owned or held or hereafter acquired, or any income or profits
therefrom, except:

               (a)  Permitted Encumbrances;

               (b) any Lien existing on property of a Person immediately prior
to its being consolidated with or merged into the Company or a Majority-Owned
Subsidiary or its becoming a Majority-Owned Subsidiary, or any Lien existing on
any property acquired by the Company or any Subsidiary at the time such property
is so acquired (whether or not the Indebtedness secured thereby shall have been
assumed), provided, that (x) no such Lien shall have been created or assumed in
          --------                                                             
contemplation of such consolidation or merger or such Person's becoming a
Majority-Owned Subsidiary or such acquisition of property, and (y) each such
Lien shall at all times be confined solely to the item or items of property so
acquired, and any property that is an improvement thereto or an upgrade thereof
or acquired for specific use in connection therewith;

               (c) Liens on accounts receivable of the Company and any Majority-
Owned Subsidiary and related leases or use contracts with customers and proceeds
of the foregoing required to be incurred in order to secure Indebtedness
permitted to be incurred under Section 8.9(a) hereof;

               (d) Liens in favor of the Collateral Agent on any assets in the
Collateral Pool, and such substitutions therefor or replacements thereof as
contemplated in the Note Purchase Agreement;

               (e) Subject to the limitations set forth in Section 8.9(d)
hereof, any Lien created to secure any Indebtedness incurred or assumed to pay
all or any part of the purchase price of property acquired by the Company or a
Majority-Owned Subsidiary after December 31, 1994 (or created to secure
Indebtedness incurred to finance equipment pursuant to Section 8.9(d) hereof);
provided, that (i) any such Lien shall be confined solely to the item or items
- --------
of property so acquired or currently owned (the "Financed Equipment") and any
property that is an improvement to or upgrade of or acquired for specific use in
connection with such Financed Equipment; provided, however, that in the case of
                                         --------  -------
an MRI Unit or a CT Unit (collectively, "Units") currently owned by the Company
or a Majority-Owned Subsidiary 

                                       41
<PAGE>
 
that is, at the time of acquisition of a newly-acquired Unit, subject to a Lien
in favor of the same secured party financing the purchase price of the newly-
acquired Unit, such Lien securing the Indebtedness relating to the newly
acquired Unit may extend to the currently-owned Unit and such Lien securing the
Indebtedness relating to the currently-owned Unit may extend to the newly-
acquired Unit; provided, further, that notwithstanding the immediately preceding
               --------  -------
proviso no Lien under this Section 8.8(e) shall extend to any Unit as to which
the purchase price is paid in full and there is outstanding no Indebtedness
incurred to finance such purchase price, it being understood that the cross-
collateralization permitted by the immediately preceding proviso shall
immediately cease and terminate as to any Unit upon payment of the purchase
price (or related purchase money Indebtedness) of such Unit; and (ii) in the
case of newly-acquired Financed Equipment, any such Lien shall be created within
six (6) months after the acquisition thereof;

               (f) Liens on property or assets of any Majority-Owned Subsidiary
to secure Debt For Money Borrowed of a Majority-Owned Subsidiary to the Company
or to another Majority-Owned Subsidiary in existence on the Seventh Amendment
Effective Date;

               (g) Liens securing Indebtedness of the Company and its Majority-
Owned Subsidiaries existing on the Seventh Amendment Effective Date;

               (h) Additional Liens on property of the Company or any Majority-
Owned Subsidiary to secure Indebtedness permitted by Section 8.9(f) hereof;

               (i) Subject to the limitations set forth in Section 8.9(d)
hereof, any Lien created to secure any Indebtedness incurred or assumed after
the Seventh Amendment Effective Date to pay all or any part of the purchase
price of an improvement to or upgrade of a Unit owned by the Company or a
Majority-Owned Subsidiary, provided that (i) any such Lien shall be confined
                           --------
solely to the improved or upgraded Unit subject to such Lien; provided, however,
                                                              --------  -------
that in the case of a Unit owned by the Company or a Majority-Owned Subsidiary
that is, at the time of acquisition of an improvement or upgrade to a Unit,
already subject to a Lien in favor of the same secured party financing the
purchase price of such improvement or upgrade, such Lien securing the
Indebtedness relating to the newly-improved or upgraded Unit may extend to the
Unit already owned and such Lien securing the Indebtedness relating to the Unit
already owned may extend to the newly-improved Unit; provided, further, that
                                                     --------  -------
notwithstanding the immediately preceding proviso no such Lien shall extend to
any Unit as to which (A) the purchase price thereof (and of any improvement
thereto or upgrade thereof) is paid in full and (B) there is outstanding no
Indebtedness incurred to finance such purchase price, it being understood that
the cross-collateralization permitted by the immediately preceding proviso shall
immediately cease and terminate upon payment of the purchase price (or related
purchase money Indebtedness) of each Unit and any improvement to or upgrade
thereof, and (ii) any such Lien shall be created within six months after the
completion or installation of such improvement or upgrade;

                                       42
<PAGE>
 
               (j) Any Lien created to secure Indebtedness incurred to finance
equipment pursuant to the terms of Section 8.9(d) hereof; and

               (k) Any extension, renewal or replacement (or successive
extensions, renewals or replacements), in whole or in part, of (a) through (j)
above, so long as the outstanding principal amount of the Indebtedness secured
by such Lien at the time of such extension, renewal or replacement is not
increased, nor the periodic debt service payment (principal and interest)
payable with respect thereto increased, and the renewed or extended-Lien does
not cover any property which is not covered by the existing Lien renewed or
extended thereby.

          8.9. INDEBTEDNESS.  The Company covenants and agrees that so long
               ------------                                                
as, and at any time that, (i) any shares of Preferred Stock are held by the
Investor or any Eligible Holder, and (ii) the IRR Trigger Date has not occurred,
the Company will not create, incur or assume or permit to exist, and will not
permit any Majority-Owned Subsidiary to create, incur or assume or permit to
exist or remain liable with respect to Indebtedness, other than the following:

               (a) The Company may become and remain liable with respect to
Indebtedness for working capital purposes under the Working Capital Facility as
provided for in Section 9.06 of the Note Purchase Agreement or any renewal,
extension or replacement thereof, provided that the indebtedness thereunder does
not at any time exceed 75% of the net accounts receivable of the Company
(determined in accordance with GAAP) and the terms and conditions thereof are
not, in the aggregate, materially more burdensome than under the preexisting
Working Capital Facility and reflect current market conditions;

               (b) The Company may become and remain liable with respect to
Indebtedness evidenced by the Senior Secured Notes; and any Majority-Owned
Subsidiary may become and remain liable with respect to Indebtedness evidenced
by a guaranty thereof (each, a "Guaranty");

               (c) The Company or any Majority-Owned Subsidiary, as appropriate,
may remain liable with respect to any Indebtedness in existence on the Seventh
Amendment Effective Date;

               (d) Subject to the limitations on incurrence of Capital
Expenditures set forth in Section 8.11 hereof, the Company or any Majority-Owned
Subsidiary may become and remain liable with respect to Indebtedness incurred to
acquire equipment (including CT Scanners and MRI Units and related additions,
parts and improvements);

               (e) Any Majority-Owned Subsidiary may become and remain liable
with respect for Debt for Money Borrowed of such Majority-Owned Subsidiary owing
to the Company or to a Majority-Owned Subsidiary consisting of (i) Indebtedness
arising out of an Investment by the Company or such Majority-Owned Subsidiary as
permitted by Section 8.10(a) through (c) or (ii) intercompany operating advances
incurred in the ordinary course of business;

                                       43
<PAGE>
 
               (f) In addition to (a) through (e) above, the Company or any
Majority-Owned Subsidiary may incur and remain liable with respect to other
Indebtedness not to exceed an aggregate amount of $5,000,000 at any time
outstanding; and

               (g) Indebtedness which is a renewal, extension or replacement of
existing Indebtedness permitted under this Section 8.9; provided that the
principal amount of the Indebtedness is less than or equal to the principal
amount outstanding immediately prior to such renewal, extension or replacement
and that the periodic debt payment with respect thereto is less than or equal to
the periodic debt payment currently payable with respect to such Indebtedness.

          8.10 INVESTMENTS.   The Company covenants and agrees that so long
               -----------                                                 
as, and at any time that, (i) any shares of Preferred Stock are held by the
Investor or any Eligible Holder, and (ii) the IRR Trigger Date has not occurred,
the Company will not, and will not permit any of its Majority-Owned Subsidiaries
to, make any Investments other than the following: (a) capital contributions and
funded loans to any Majority-Owned Subsidiary, and any partnership or other
joint venture (including a corporate joint venture); provided that the aggregate
                                                     --------                   
outstanding amount of all Investments made pursuant to this clause (a) does not
exceed $5,000,000 at any time; (b) loans and advances to employees in the
ordinary course of business for a proper corporate purpose not to exceed
$250,000 in the aggregate at any time outstanding (excluding notes received from
option holders in payment of the exercise price of stock options issued pursuant
to a stock option plan of the Company approved by the Company's Board of
Directors); (c) Investments with respect to hedging the Company's exposure to
foreign currency fluctuations to the extent that the Company has sales
denominated in such foreign currency; (d) Investments in Interest Rate
Protection Agreements; (e) short-term operating advances described in Section
8.9(f)(ii), to the extent such advances constitute Investments; and (f)
Investments where the consideration paid by the Company consists of equity
securities of the Company, to the extent that consideration was or is paid in
that form.  For purposes of computing the amount subject to the $5,000,000
limitation in clause (a) above, (I) there shall be excluded Investments where
the consideration paid by the Company consists of equity securities of the
Company, to the extent that consideration was or is paid in that form, and (II)
there shall be included Investments made only from and after the Effective Date
of the Tenth Amendment to the Note Purchase Agreement, and not Investments made
prior thereto.

          8.11 CAPITAL EXPENDITURES.  The Company covenants and agrees that
               --------------------                                        
so long as, and at any time that, (i) any shares of Preferred Stock are held by
the Investor or any Eligible Holder, and (ii) the IRR Trigger Date has not
occurred, the Company will not, and will not permit any of its Majority-Owned
Subsidiaries to, make Capital Expenditures, unless, after including such Capital
Expenditures in the aggregate amount of Capital Expenditures incurred by the
Company and its Majority-Owned Subsidiaries during the current Fiscal Year, the
aggregate Capital Expenditures for such Fiscal Year do not exceed an amount
equal to $30,000,000 plus the Capital Expenditure Adjustment Amount; provided,
                                                                     -------- 
however, that the Company or any of its Majority-Owned Subsidiaries may dispose
- -------                                                                        
of equipment and within 180 days purchase replacement equipment with only the
net incremental amount being 

                                       44
<PAGE>
 
deemed to be a Capital Expenditure; provided, further, that to the extent the
                                    --------  -------
Company receives credit against the purchase price of newly-acquired equipment
as a result of a trade-in of currently-owned equipment, the amount of such
credit shall not be included in determining the amount of Capital Expenditures
permitted to be incurred hereunder; and provided, further, that if the amount of
                                        --------  -------
permitted Capital Expenditures for any Fiscal Year is not fully utilized, then
the unutilized portion (up to 50% of the permitted amount for such Fiscal Year)
may be carried forward and made in the following Fiscal Year, in addition to the
amount otherwise permitted for such following Fiscal Year.

               For purposes of this Section 8.11 the incurrence of a Capital
Expenditure shall be deemed to have occurred when the Company (or any of its
Majority-Owned Subsidiaries) enters into a binding commitment to purchase the
applicable equipment as evidenced by a written agreement or accepted purchase
order between the Company and the manufacturer or seller of such equipment.

          8.12 TRANSACTIONS WITH AFFILIATES.  The Company covenants and agrees
               ----------------------------                            
that so long as, and at any time that, any shares of Preferred Stock are held by
the Investor or any Eligible Holder, the Company will not, and will not permit
any of its Majority-Owned Subsidiaries to, directly or indirectly, engage in any
transaction with any Affiliate of the Company, including, without limitation,
the purchase, sale or exchange of assets or the rendering of any service, except
in the ordinary course of business and pursuant to the reasonable requirements
of the Company's or such Majority-Owned Subsidiary's business and upon fair and
reasonable terms that are no less favorable to the company or such Majority-
Owned Subsidiary, as the case may be, than those which might be obtained in an
arm's-length transaction at the time from Persons which are not such an
Affiliate.

          8.13 LIMITATION ON DISPOSITION OF ASSETS.  The Company covenants and
               -----------------------------------                        
agrees that so long as, and at any time that, (i) any shares of Preferred Stock
are held by the Investor or any Eligible Holder, and (ii) the IRR Trigger Date
has not occurred, other than as permitted and subject to the limitations set
forth in Section 8.7 through 8.10 hereof, the Company will not, and will not
permit any of its Majority-Owned Subsidiaries to, directly or indirectly, sell,
lease, transfer or otherwise dispose of (other than in the ordinary course of
business) any of its properties unless (i) after giving effect to any such sale,
lease, transfer or other disposition by the Company or any Majority-Owned
Subsidiary, the aggregate net book value of the properties involved in such
dispositions during any Fiscal Year of the Company does not exceed $2,000,000
and in the aggregate at any time after the Effective Date of the Tenth Amendment
does not exceed $4,000,000 and (ii) prior to and after giving effect to any such
sale, lease, transfer or other disposition by the Company or any Majority-Owned
Subsidiary, no Default or Event of Default has occurred or is continuing;
provided that the foregoing restrictions do not apply to a transfer of
- --------                                                              
properties by a Majority-Owned Subsidiary to the Company.

               Notwithstanding the foregoing, the Company or a Majority-Owned
Subsidiary may make any such disposition and the properties involved in any such
disposition shall be excluded from the foregoing computation set forth in (i)
above if within one hundred eighty 

                                       45
<PAGE>
 
(180) days after such disposition the Company or a Majority-Owned Subsidiary
reinvests the proceeds in assets substantially similar to those which are
disposed of, or applies the net proceeds (after deducting direct costs and
expenses incurred as a result of such disposition and discharging any underlying
debt which is secured by such property) to the prepayment or redemption of the
Secured Obligations or the Senior Secured Notes or other Indebtedness of the
Company, or retains the proceeds in cash or cash-equivalent investments;
provided, further, that the aggregate net book value of properties disposed of
- --------  ------- 
under this Section 8.13 the net proceeds of which are so applied shall not
exceed the greater of $10,000,000 or fifteen percent (15%) of the net book value
of the then existing MRI Units.

          8.14 LIMITATION RELATING TO SUBSIDIARIES.  The Company covenants
               -----------------------------------                        
and agrees that so long as, and at any time that, any shares of Preferred Stock
are held by the Investor or any Eligible Holder, the Company will not and will
not permit any Majority-Owned Subsidiary to:

               (a) transfer any stock of any Majority-Owned Subsidiary, or
permit any Majority-Owned Subsidiary to issue or transfer its stock or transfer
the stock of any other Subsidiary, if as a result thereof, the Company would
own, directly or indirectly, less than 95% of the Capital Stock or Voting Stock
of any Majority-Owned Subsidiary, provided that no transfer of any such stock
shall be permitted unless such transfer is made for fair value, as determined in
good faith by the Board of Directors of the Company; or

               (b) permit any Majority-Owned Subsidiary to enter into an
agreement restricting it from paying dividends to the Company.

               Notwithstanding the provisions of clause (a) above, all of the
shares of Capital Stock of all classes of any Majority-Owned Subsidiary owned by
the Company and/or its Majority-Owned Subsidiaries may be sold for fair market
value as an entirety if the following conditions are met:

       (i)   the Majority-Owned Subsidiary whose stock is so sold does not own
     any shares of capital stock of any other Majority-Owned Subsidiary not
     being simultaneously sold;

       (ii)  after giving effect to the sale, any Indebtedness of the Company or
     any remaining Majority-Owned Subsidiary owing to the Majority-Owned
     Subsidiary whose stock is so sold could then be incurred by the Company or
     such remaining Majority-Owned Subsidiary, as the case may be, under the
     terms and conditions of this Agreement;

       (iii) such sale would be permissible under Section 8.13 hereunder; and

       (iv)  prior to and immediately after giving effect to such sale, no
     Default or Event of Default shall have occurred and be continuing under
     this Agreement or the Senior Secured Notes.

                                       46
<PAGE>
 
          8.15. LIMITATIONS ON LEASES.  Except as set forth in the next
                ---------------------  
sentence, the Company covenants and agrees that so long as, and at any time
that, (i) any shares of Preferred Stock are held by the Investor or any Eligible
Holder and (ii) the IRR Trigger Date has not occurred, the Company will not, and
will not permit any Majority-Owned Subsidiary to, enter into any Long-Term
Lease, unless, after including in Consolidated Rental Obligations the amount of
all minimum or guaranteed net rentals the Company or such Majority-Owned
Subsidiary is directly or indirectly liable for (as lessee or as a guarantor or
other surety) under such Long-Term Lease which will accrue during the 12-month
period following the date upon which the Company or its Subsidiary enters into
such Long-Term Lease, the Consolidated Rental Obligations for such 12-month
period will not exceed the applicable amount set forth below based upon the
Fiscal Year in which such Long-Term Lease is proposed to be entered into:
<TABLE> 
        <S>                    <C>       
          1996                 $2,700,000
          1997                 $2,500,000
          1998                 $2,200,000
          1999                 $1,750,000
          2000                 $1,500,000
</TABLE>

          Notwithstanding the foregoing, there shall be excluded from the
calculation of Consolidated Rental Obligations pursuant to the preceding
sentence any and all variable lease payments (i.e., payments made pursuant to a
Long-Term Lease or otherwise that are based solely upon usage or other operating
criteria rather than being fixed in amount and as to which there are no minimum
and no guaranteed periodic payment obligations). Notwithstanding the foregoing,
for the purposes of this Section 8.15, there shall be excluded from the coverage
of "Long-Term Leases" and "Consolidated Rental Obligations" any lease or other
contract or commitment, and payments required thereunder, with respect to MRI,
CT or other medical equipment and related trailers or buildings and related
improvements.

          8.16. BOARD OBSERVATION RIGHTS.   The Company covenants and agrees
                ------------------------                                    
that so long as, and at any time that, any shares of Preferred Stock are held by
the Investor, the Investor shall be entitled to appoint one observer (who may
be, but shall not be required to be, an employee of Investor) to attend each
meeting of the Board of Directors of the Company, and shall be entitled to a
copy of all written materials (including Board meeting agendas and background
materials) distributed to each member of the Board of Directors of the Company
as and when so distributed, subject in each case to reasonable safeguards with
respect to (i) the protection of the Company's highly confidential information
(such safeguards to be deemed satisfied by the execution of a confidentiality
agreement in form and substance reasonably satisfactory to the parties) and (ii)
conflict of interest situations with respect to the business of the Medical
Systems Division of the Investor.

          8.17. NO FUNDED DEBT DEFAULTS.    The Company shall not commit or
                -----------------------                                    
suffer to exist any Funded Debt Default; provided, however, that the Company
shall not be deemed to have breached this covenant with respect to any
particular Funded Debt Default if the Investor shall have exercised its right
under the Series D Certificate of Designation or the 

                                       47
<PAGE>
 
Series E Certificate of Designation to decline to accept (or shall have been
deemed to have declined to accept) the Special Dividend Event Repurchase Offer
(as defined in the Series D Certificate of Designation or the Series E
Certificate of Designation, as the case may be) related to such Funded Debt
Default.

          8.18. NO CHANGE IN BUSINESS.  The Company shall not substantially and
                ---------------------                                          
materially engage in any business other than the business of providing
diagnostic and therapeutic medical equipment and related services to the
healthcare industry.

     9.   INDEMNIFICATION
          ---------------

          9.1   SURVIVAL OF REPRESENTATIONS, WARRANTIES AND COVENANTS.  The
                -----------------------------------------------------      
warranties, representations and covenants of the Company contained in or made
pursuant to this Agreement shall forever survive the execution and delivery of
this Agreement and the Closing and shall in no way be affected by any
investigation of the subject matter thereof made by or on behalf of the Investor
or the Company; provided, however, that the warranties and representations
contained in Sections 4.8, 4.9, 4.10, 4.11, 4.12, 4.13, 4.15, 4.16, 4.17, 4.18,
4.19, 4.20, 4.21 and 4.22 shall survive for a period of two (2) years after the
Closing Date.  As of the Closing Date, upon consummation of the transactions
contemplated by this Agreement, the representations, warranties and covenants
contained in the Bridge Loan Agreement shall be deemed to be superseded by the
provisions of this Agreement and shall be of no further force and effect.

          9.2  INDEMNIFICATION.
               ----------------

               (a) The Company shall indemnify and hold harmless the Investor
and its Affiliates, partners, directors, officers, employees, agents and
attorneys, in respect of any losses, expenses or Liabilities (including any
legal and other out-of-pocket expenses for investigating, settling or defending
any actions or threatened actions) (collectively, "Damages") incurred, directly
or indirectly, by any of the foregoing in connection with any misrepresentation,
breach or alleged breach of any representation, warranty, covenant or agreement
made by the Company in this Agreement, the other agreements referred to in this
Agreement (except the Bridge Loan Agreement), or in any certificate, instrument,
schedule or document given by the Company to the Investor in connection herewith
or therewith.

               (b) Whenever a representation or warranty contained herein is
qualified as to materiality, the Company shall have the burden to prove by a
preponderance of the evidence that the effect of any occurrence, event,
condition or other factor that makes any representation or warranty untrue is
not material or was not expected to be material at the time the representation
or warranty is made.

               (c) No Person shall be entitled to indemnification pursuant to
this Section 9 for any Damages incurred unless the aggregate amount for which
indemnification is sought is in excess of $50,000, based on all Damages from the
first dollar and without regard to any materiality qualifier (the "Threshold"),
whether represented by one 

                                       48
<PAGE>
 
or more claims. If the amount of claims for Damages exceeds the Threshold, then
the Person entitled to indemnification pursuant to this Section 9 shall be
entitled to indemnification for all Damages, including without limitation the
first $50,000 of such Damages incurred.

          9.3  CLAIMS FOR INDEMNIFICATION.  Whenever any claim shall arise
               --------------------------                                 
for indemnification, the indemnified party shall notify the Company of the claim
in writing and, when known, the facts constituting the basis for such claim and
the amount or an estimate of the amount of the Liability arising from such
claim.  The indemnified party shall not settle or compromise any claim by a
third party that is entitled to indemnification hereunder without the prior
written consent of the Company unless (i) suit shall have been instituted
against the indemnified party and (ii) the Company shall not have taken control
of such suit within fifteen (15) Business Days after notification thereof as
provided in Section 9.4.

          9.4  DEFENSE BY THE COMPANY.  In connection with any claim giving
               ----------------------                                      
rise to indemnity hereunder resulting from or arising out of any claim or legal
proceeding by a Person other than the Investor, the Company or their respective
Affiliates, partners, directors, officers, employees, agents or attorneys, the
Company at its sole cost and expense, may, upon written notice to the Investor,
assume the defense of any such claim or legal proceeding without prejudice to
the right of the Company thereafter to contest its obligation to indemnify such
Person in respect of the claims asserted therein. If the Company assumes the
defense of any such claim or legal proceeding, the Company shall select counsel
to conduct the defense of such claims or legal proceedings at its sole cost and
expense and shall take all steps necessary in the defense or settlement thereof.
The Company shall not consent to a settlement of, or the entry of any judgment
arising from, any such claims or legal proceeding, without the prior written
consent of the indemnified party, unless the Company admits in writing its
Liability to hold the indemnified party harmless from and against any loss,
damages, expenses and Liabilities arising out of such settlement and
concurrently with such settlement the Company pays into court the full amount of
all losses, damages, expenses and Liabilities to be paid by the Company in
connection with such settlement. The indemnified party shall be entitled to
participate in (but not control) the defense of any such action, with its own
counsel and at its own expense. If the Company does not assume the defense of
any such claim or litigation resulting therefrom in accordance with the terms
hereof, the indemnified party may defend against such claim or litigation in
such manner as it may deem appropriate, including settling such claim or
litigation, after giving notice of the same to the Company, on such terms as the
indemnified party may deem appropriate. The Company shall be entitled to
participate in the defense of any action by the indemnified party, which
participation shall be limited to contributing information to the defense and
being advised of its status. In any action by the indemnified party seeking
indemnification from the Company in accordance with the provisions of this
paragraph, the Company shall not be entitled to question the manner in which the
indemnified party defended such claim or litigation or the amount of or nature
of any such settlement, except to the extent that the indemnified party has
breached the provisions of this Section 9.

          9.5  MATERIALITY.  The parties agree that for all purposes of
               -----------                                             
this Agreement, unless specifically stated to the contrary, the dollar amounts
set forth in various 

                                       49
<PAGE>
 
provisions hereof, other than the purchase price hereunder shall not affect or
determine the meaning of the term "material" or have any bearing thereon.

     10.  RESTRICTIONS ON TRANSFERABILITY OF SECURITIES; COMPLIANCE WITH
          --------------------------------------------------------------
          SECURITIES ACT; REGISTRATION RIGHTS.
          ----------------------------------- 

          10.1 RESTRICTIONS ON TRANSFERABILITY.  The Securities shall not
               -------------------------------                           
be sold, assigned, transferred or pledged except upon satisfaction of the
conditions specified in this Section 10, which conditions are intended to ensure
compliance with the provisions of the Securities Act. The Investor will cause
any proposed purchaser, assignee, transferee, or pledgee of the shares of
Securities to agree to take and hold such securities subject to the provisions
and conditions of this Section 10.

          10.2 RESTRICTIVE LEGEND.  Each certificate representing the
               ------------------                                    
Registrable Securities, shall be stamped or otherwise imprinted with a legend in
the following form (in addition to any legend required under applicable state
securities laws):

     THE SHARES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER
     THE SECURITIES ACT OF 1933, AS AMENDED. SUCH SHARES MAY NOT BE SOLD,
     OFFERED FOR SALE, PLEDGED OR HYPOTHECATED IN THE ABSENCE OF AN EFFECTIVE
     REGISTRATION STATEMENT AS TO THE SECURITIES UNDER SAID ACT OR AN OPINION OF
     COUNSEL SATISFACTORY TO THE CORPORATION THAT SUCH REGISTRATION IS NOT
     REQUIRED. COPIES OF THE AGREEMENT COVERING THE PURCHASE OF THESE SHARES AND
     RESTRICTING THEIR TRANSFER MAY BE OBTAINED AT NO COST BY WRITTEN REQUEST
     MADE BY THE HOLDER OF RECORD OF THIS CERTIFICATE TO THE SECRETARY OF THE
     CORPORATION AT THE PRINCIPAL EXECUTIVE OFFICES OF THE CORPORATION.

          10.3 REQUESTED REGISTRATION.
               ---------------------- 

               (a) Request for Registration.  In case the Company shall receive
                   ------------------------
from the Investor a written request that the Company effect a registration under
the Securities Act with respect to not less than 3,000,000 shares of Registrable
Securities, the Company will, as soon as practicable, use its best efforts to
effect such registration (including, without limitation, appropriate
qualification under applicable blue sky or other state securities laws and
appropriate compliance with applicable regulations issued under the Securities
Act and any other governmental requirements or regulations) as may be so
requested and as would permit or facilitate the sale and distribution of all or
such portion of such Registrable Securities as are specified in such request;
provided, however, that the Company shall not be obligated to take any action to
- -----------------                                                               
effect any such registration, qualification or compliance pursuant to this
Section 10.3 in any particular jurisdiction in which the Company would be
required to execute a general consent to service of process or become subject to
taxation in effecting such registration, qualification or compliance unless the
Company is already subject to service or 

                                       50
<PAGE>
 
taxation in such jurisdiction. The Company shall be obligated to effect only
three such registrations pursuant to this Section 10.3.

               (b) Underwriting. In the event that a registration pursuant to
                   ------------
this Section 10.3 is for a registered public offering involving an underwriting,
the Investor shall so advise the Company as a part of its request made pursuant
to Section 10.3(a). In such event, the right of the Investor to registration
pursuant to this Section 10.3 shall be conditioned upon the Investor's
participation in the underwriting arrangements required by this Section 10.3(b),
and the inclusion of the Investor's Registrable Securities in the underwriting
to the extent requested shall be limited as provided herein. The Company and the
Investor shall enter into an underwriting agreement in customary form with
managing underwriter(s) selected for such underwriting by the Investor, but
subject to the Company's reasonable approval. Notwithstanding any other
provision of this Section 10.3, if the managing underwriter(s) advise(s) the
Company in writing that marketing factors require a limitation of the number of
shares to be underwritten, then the Company shall so advise the Investor and the
number of shares of Registrable Securities that may be included in the
registration and underwriting shall be so limited. If the Investor disapproves
of the terms of the underwriting, the Investor may elect to withdraw therefrom
by written notice to the Company.

               (c) Deferral by Company. Notwithstanding the foregoing, the
                   -------------------
Company shall not be obligated to effect a registration pursuant to this Section
10.3 if the Company shall furnish to the Investor a certificate signed by the
President of the Company stating that in the good faith judgment of the Board of
Directors of the Company it would be seriously detrimental to the Company and
its shareholders for the Company to comply with such request, and it is
therefore essential to defer the filing of the registration statement relating
thereto. Any such deferral shall be for a period of not more than 90 days after
receipt of the Investor's request for registration pursuant to Section 10.3(a);
provided, however, that the Company may not exercise this deferral right more
- --------  -------                                                            
than once in any 12-month period; provided, further, that any requested
                                  --------  -------                    
registration deferred by the Company pursuant to the provisions of this Section
10.3(c) shall thereafter not be deemed to be a requested registration for
purposes of the limitation to three requested registrations pursuant to Section
10.3(a), until such deferral expires and the Company effects the related
registration.

          10.4 COMPANY REGISTRATION.
               -------------------- 

               (a) Notice of Registration. If at any time or from time to time
                   ----------------------
the Company shall determine to register any of its securities, whether or not
for its own account, the Company will promptly give to the Investor written
notice thereof, and include in such registration (and any related qualification
under blue sky laws or other compliance), and in any underwriting involved
therein, all the Registrable Securities specified in a written request or
requests, made within 20 days after receipt of such written notice from the
Company, by the Investor.

               (b) Underwriting.  If the registration of which the Company gives
                   ------------                                                 
notice under this Section 10.4 is for a registered public offering involving an

                                       51
<PAGE>
 
underwriting, the Company shall so advise the Investor as a part of the written
notice given pursuant to Section 10.4(a). In such event the right of the
Investor to registration pursuant to this Section 10.4 shall be conditioned upon
the Investor's participation in such underwriting and the inclusion of the
Investor's Registrable Securities in the underwriting to the extent provided
herein. The Investor and the Company shall enter into an underwriting agreement
in customary form with the managing underwriter selected for such underwriting
by the Company. Notwithstanding any other provision of this Section 10.4, if the
managing underwriter determines that marketing factors require a limitation of
the number of shares to be underwritten, the managing underwriter may limit the
Registrable Securities to be included in such registration, and the Company
shall include in such registration: (i) first, 100% of the securities the
Company proposes to sell for its own account, and (ii) second, such number of
Registrable Securities which the Investor has requested to be included in such
registration and such number of securities which other holders have requested to
be included in such registration which, in the opinion of such managing
underwriter, can be sold without having an adverse effect on the marketing of
the securities referred to above, such number of Registrable Securities and
securities of other holders described in this clause (ii) to be included on a
pro rata basis among the Investor and all other holders. To facilitate the
allocation of shares in accordance with the above provisions, the Company may
round the number of shares allocated to the Investor or other holders to the
nearest 100 shares. If the Investor disapproves of the terms of any such
underwriting, he may elect to withdraw therefrom by written notice to the
Company and the managing underwriter.

               (c) Right to Terminate Registration. The Company shall have the
                   -------------------------------
right to terminate or withdraw any registration initiated by it under this
Section 10.4 prior to the effectiveness of such registration whether or not the
Investor has elected to include securities in such registration.

          10.5 REGISTRATION ON FORM S-3.  If the Investor requests that the
               ------------------------                                    
Company file a registration statement on Form S-3 (or any successor form to Form
S-3) for a non-underwritten public offering of the Registrable Securities, the
reasonably anticipated aggregate price to the public of which, net of discounts
and commissions, would exceed $12,000,000 and the Company is then entitled to
use Form S-3 under applicable SEC rules to register the Registrable Securities
for such an offering, the Company shall use its best efforts to cause such
Registrable Securities to be registered for the offering on such form and to
cause such Registrable Securities to be qualified in such jurisdictions as the
Investor may reasonably request; provided, however, that the Company shall not
be required to effect more than one registration pursuant to this Section 10.5
in any twelve (12) month period or in excess of three (3) registrations under
this Section 10.5; provided, however, that the Company shall not be obligated to
                   -----------------                                            
take any action to effect any such registration, qualification or compliance
pursuant to this Section 10.5 in any particular jurisdiction in which the
Company would be required to execute a general consent to service of process or
become subject to taxation in effecting such registration, qualification or
compliance unless the Company is already subject to service or taxation in such
jurisdiction.  The substantive provisions of Section 10.3(b) shall be applicable
to each registration initiated under this Section 10.5.

                                       52
<PAGE>
 
          10.6 LIMITATIONS ON SUBSEQUENT REGISTRATION RIGHTS.  From and after
               ---------------------------------------------           
the Closing Date, the Company shall not enter into any agreement granting any
holder or prospective holder of any securities of the Company registration
rights with respect to such securities unless (i) such new registration rights
are on a pari passu basis with those rights of the Investor hereunder, or (ii)
such new registration rights are subordinate to the registration rights granted
to the Investor hereunder.

          10.7 EXPENSES OF REGISTRATION.  All expenses (other than underwriting
               ------------------------                           
discounts and commissions relating to Registrable Securities and fees and
disbursements of counsel for the Investor), including without limitation all
registration, filing, and qualification fees, printing and accounting fees and
legal fees and expenses of counsel to the Company incurred in connection with
any registration pursuant to Section 10.3, 10.4 or 10.5 shall be borne by the
Company.

          10.8 SECURITIES INDEMNIFICATION.  The Company will indemnify the
               --------------------------                                 
Investor, each of its officers, directors and partners, and each Person
controlling such Investor within the meaning of Section 15 of the Securities
Act, with respect to which registration, qualification or compliance has been
effected pursuant to this Section 10, and each underwriter, if any, and each
Person who controls any underwriter within the meaning of Section 15 of the
Securities Act, against all expenses, claims, losses, damages or liabilities (or
actions in respect thereof), including any of the foregoing incurred in
settlement of any litigation, commenced or threatened, arising out of or based
on any untrue statement (or alleged untrue statement) of a material fact
contained in any registration statement, prospectus, offering circular or other
document, or any amendment or supplement thereto, incident to any such
registration, qualification or compliance, or based on any omission (or alleged
omission) to state therein a material fact required to be stated therein or
necessary to make the statements therein, in light of the circumstances in which
they were made, not misleading, or any violation by the Company of the
Securities Act or any rule or regulation promulgated under the Securities Act
applicable to the Company in connection with any such registration,
qualification or compliance, and the Company will reimburse the Investor, each
of its officers and directors, and each Person controlling the Investor, each
such underwriter and each Person who controls any such underwriter, for any
legal and any other expenses reasonably incurred in connection with
investigating, preparing or defending any such claim, loss, damage, liability or
action, provided that the Company will not be liable in any such case to the
extent that any such claim, loss, damage, liability or expense arises out of or
is based on any untrue statement or omission or alleged untrue statement or
omission, made in reliance upon and in conformity with written information
furnished to the Company by an instrument duly executed by the Investor,
controlling Person or underwriter and stated to be specifically for use therein.
The procedures governing the securities indemnification obligations of the
Company under this Section 10.8 shall be as set forth in Section 9.  The
indemnification obligations of the Company under this Section 10.8 shall be in
addition to the indemnification obligations of the Company under Section 9.

          10.9 TRANSFER OF REGISTRATION RIGHTS.  The rights to cause the
               -------------------------------                          
Company to register securities granted to Investor under Sections 10.3, 10.4,
and 10.5 may be 

                                       53
<PAGE>
 
assigned to a transferee or assignee reasonably acceptable to the Company in
connection with any transfer or assignment of Registrable Securities by the
Investor provided that such transfer may otherwise be effected in accordance
with applicable securities laws.

     11.  MISCELLANEOUS.
          ------------- 

          11.1 EXPENSES.  At Closing, the Company shall promptly pay the
               --------                                                 
Investor all of the Investor's reasonable out-of-pocket expenses incurred in
connection with this transaction, including legal fees and expenses, accounting
fees and expenses and due diligence expenses, provided that the Company's
maximum responsibility therefor shall be Ninety Thousand Dollars ($90,000).

          11.2 PUBLICITY.  Neither the Company nor the Investor shall release
               ---------                                             
any information to any third party with respect to the terms of this Agreement
or the transactions contemplated hereby without the prior written consent of the
other party, other than as may be required by applicable law or court order. The
parties shall mutually agree upon a joint initial announcement of the execution
of this Agreement and the related transactions. Each party agrees to consult the
other party as to the form and content of all subsequent public announcements
relating to this Agreement or the transactions contemplated hereby.

          11.3 SUCCESSORS AND ASSIGNS.   Except as otherwise expressly provided
               ----------------------                                 
herein, the terms and conditions of this Agreement shall inure to the benefit of
and be binding upon the respective successors and assigns of the parties
(including transferees of the Securities). The Securities shall be freely
transferable without the consent of the Company, subject to applicable law.
Nothing in this Agreement, express or implied, is intended to confer upon any
party other than the parties hereto or their respective successors and assigns
any rights, remedies, obligations, or Liabilities under or by reason of this
Agreement, except as expressly provided in this Agreement.

          11.4 GOVERNING LAW.  This Agreement shall be governed by and construed
               -------------                                          
under the laws of the State of New York as applied to agreements among New York
residents entered into and to be performed entirely within New York.

          11.5 COUNTERPARTS.  This Agreement may be executed in two or more
               ------------                                                
counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.

          11.6 TITLES AND SUBTITLES.  The titles and subtitles used in this
               --------------------                                        
Agreement are used for convenience only and are not to be considered in
construing or interpreting this Agreement.

          11.7 NOTICES.  All notices, demands, or other communications under
               -------                                                
this Agreement shall be in writing and shall be delivered via confirmed
facsimile, overnight courier, by hand delivery or by certified mail, return
receipt requested, to the appropriate party at the address set forth on the
signature page of this Agreement (subject to change from 

                                       54
<PAGE>
 
time to time by written notice to all other parties to this Agreement). All
communications shall be deemed served upon delivery of, or if mailed, upon the
first to occur of receipt or the expiration of three (3) days after the deposit
in the United States Postal Service mail, postage prepaid and addressed to the
address of Company or the Investor at the address specified or, if transmitted
via facsimile, upon electronic confirmation of receipt; provided, however, that
                                                        --------  -------
non-receipt of any communication as the result of any change of address or
facsimile number of which the sending party was not notified or as the result of
a refusal to accept delivery shall be deemed receipt of such communication.

          11.8  AMENDMENTS AND WAIVERS.  Any term of this Agreement may be
                ----------------------                                    
amended and the observance of any term of this Agreement may be waived (either
generally or in a particular instance and either retroactively or
prospectively), only with the written consent of the Company and the Investor.

          11.9  SEVERABILITY.  If one or more provisions of this Agreement
                ------------                                              
are held to be unenforceable under applicable law, such provision or provisions
shall be excluded from this Agreement and the balance of the Agreement shall be
interpreted as if such provision or provisions were so excluded and shall be
enforceable in accordance with its terms.

          11.10 ENTIRE AGREEMENT.  This Agreement, the Schedules and Exhibits
                ----------------                                    
hereto, the other agreements referred to herein and the other documents required
to be delivered pursuant hereto constitute the entire understanding and
agreement between the parties with regard to the specific subject matter hereof,
and no party shall be liable or bound by any representation, warranty, covenant
or

                                       55
<PAGE>
 
agreement except as specifically set forth herein or therein.  Any previous
agreement (whether written, oral or implied) among the parties relative to the
specific subject matter hereof is superseded by this Agreement.

          IN WITNESS WHEREOF, the parties hereto have executed and delivered
this Agreement as of the date first above written.



                              THE COMPANY:

                              ALLIANCE IMAGING, INC.,
                              a Delaware corporation


                              By:  ___________________________


                              Address:  3111 North Tustin Avenue,
                                        Suite 150
                                        Orange, California  92865



                              THE INVESTOR:

                              GENERAL ELECTRIC COMPANY, a New York corporation
                              acting through GE Medical Systems


                              By:  ______________________________

                              Address:  GE Medical Systems
                                        20825 Swenson Drive, Suite 100
                                        Waukesha, WI  53186

                                       56
<PAGE>
 
<TABLE> 
<CAPTION> 
                             
                             
EXHIBITS             SCHEDULES AND EXHIBITS
- --------             ---------------------- 
<C>           <S>   
Exhibit A      Eleventh Amendment to Note Purchase Agreement  
Exhibit B      Form of Restated Note                          
Exhibit C      Series D Certificate of Designation            
Exhibit D      Series E Certificate of Designation            
Exhibit E      Form of Opinion of Corporate Counsel to Company 
Exhibit F-1    Form of Opinion of Regulatory Counsel to Company
Exhibit F-2    Form of Opinion of Regulatory Counsel to Company 
</TABLE> 

<TABLE> 
<CAPTION> 

SCHEDULES
- ---------
<C>                     <S> 
Schedule 4               Company Disclosure Schedule
Schedule 4.1             Certificate and Bylaws; Jurisdictions 
Schedule 4.3             Subsidiaries                          
Schedule 4.7(b)          Accountant Letters
Schedule 4.10(b)         Material Contracts
Schedule 4.14(e)         Approvals
Schedule 4.18            Indebtedness
Schedule 4.19(b)         Lease Agreements      
Schedule 4.20(b)         Employee Benefit Plans
Schedule 4.23(a)         Environmental Permits 
Schedule 4.25            Tax Returns
</TABLE> 

<PAGE>
 
                                                                       EXHIBIT 2

                              ELEVENTH AMENDMENT
                          TO NOTE PURCHASE AGREEMENT


     This ELEVENTH AMENDMENT TO NOTE PURCHASE AGREEMENT (this "ELEVENTH
AMENDMENT") is dated as of March 25, 1997 and entered into by and among Alliance
Imaging, Inc., a Delaware corporation (the "COMPANY"), General Electric Company,
a New York corporation acting through GE Medical Systems ("GE"), and DVI
Financial Services Inc. ("DVI" and, together with GE, the "HOLDERS"), and is
made with reference to that certain Note Purchase Agreement dated as of April
14, 1989, as amended by that certain First Amendment to Note Purchase Agreement
dated as of September 20, 1990, that certain Second Amendment to Note Purchase
Agreement dated as of June 3, 1991, that certain Third Amendment to Note
Purchase Agreement dated as of December 1, 1991, that certain Fourth Amendment
to Note Purchase Agreement dated as of December 31, 1992, that certain Fifth
Amendment to Note Purchase Agreement dated as of June 30, 1993, that certain
Sixth Amendment to Note Purchase Agreement dated as of March 18, 1994, that
certain Seventh Amendment to Note Purchase Agreement dated as of December 31,
1994, that certain Eighth Amendment to Note Purchase Agreement dated as of
December 31, 1994, that certain Ninth Amendment to Note Purchase Agreement dated
as of April 15, 1996, that certain Tenth Amendment to Note Purchase Agreement
dated as of November 6, 1996 (the "TENTH AMENDMENT"), and those certain letter
agreements dated April 25, 1995 concerning Atlantic/Gulf Imaging, Inc. and dated
June 28, 1996 concerning Sun MRI Services, Inc. (as so amended, the "NOTE
PURCHASE AGREEMENT"), by and among the Company and previous holders and, in the
case of the Tenth Amendment, the Holders, of the Notes.  Capitalized terms used
herein without definition shall have the same meanings herein as set forth in
the Note Purchase Agreement.

                                    RECITALS

     WHEREAS, the Company and GE desire to amend the Note Purchase Agreement and
GE's Notes, as they relate to the Company and GE only (and not as they relate to
DVI), to permit the conversion of such Notes into shares of the Company's Series
E Preferred Stock (as defined below), on the terms and conditions as set forth
below; and

     WHEREAS, the Company and the Holders desire to amend certain covenants and
definitions in the Note Purchase Agreement;
<PAGE>
 
     NOW, THEREFORE, in consideration of the premises and the agreements,
provisions and covenants herein contained, the applicable parties hereto (as
specified below) agree as follows:

                                      -2-
<PAGE>
 
     SECTION 1.  CONVERSION OF GE'S NOTES
 
     The Company and GE (including, for all purposes of this Section 1, GE's
Affiliates, as such term is defined in that certain Bridge Loan Agreement, dated
as of December 31, 1996, between the Company and GE), and not DVI, which is not
a party to the agreements contained in this Section 1, agree as follows:
 
     1.1  CONVERSION OF NOTES.  GE shall have the right, at its option, at any
          -------------------                                                 
time from and after January 1, 1998, to convert, subject to the terms and
provisions of this Section 1, all or any portion of the face amount of its Notes
into such number of fully paid and non-assessable shares of the Company's Series
E Preferred Stock, with the rights and privileges as set forth in the attached
Exhibit 1 (the "SERIES E PREFERRED STOCK"), as results from dividing (i) the
Notional Amount (as defined below) corresponding to the face amount of the Notes
to be converted, by (ii) the Face Amount (as defined in the Series E Preferred
Stock) of the Series E Preferred Stock.  For purposes of this Eleventh
Amendment, with respect to the Notes, "Notional Amount" shall mean the principal
amount of a note (the "NOTIONAL OBLIGATION") in the initial notional principal
amount of $9,000,000 as of November 6, 1996 bearing an annual interest rate of
10.00%, compounded monthly, that would remain unpaid as of the Notes Conversion
Date (as defined below) if all payments actually made under the Notes to the
Holder after November 6, 1996 through the Notes Conversion Date, including
payments of both interest and principal, were applied to the Notional
Obligation, applying such payments first to interest on the Notional Obligation
and then to principal of the Notional Obligation, with negative amortization
reflected, if applicable.  Such conversion shall be deemed to have been made at
the close of business on the date that a Note or Notes representing the Notional
Amount of Notes to be converted shall have been surrendered for conversion (it
being understood that each dollar in Notional Amount of Notes is represented by
a principal amount of Notes equal to the result of dividing (x) the number 1, by
(y) the ratio of the aggregate remaining Notional Amount of the Notes to the
aggregate remaining face amount of the Notes at the Notes Conversion Date, as
such remaining face amount is calculated from time to time in accordance with
the provisions of the Note Purchase Agreement) and written notice shall have
been received as provided in Section 1.2 (the "NOTES CONVERSION DATE"), so that
the person or persons entitled to receive the shares of Series E Preferred Stock
upon conversion of the Notes shall be treated for all purposes as having become
the record holder or holder of such shares of Series E Preferred Stock at such
time.

                                      -3-
<PAGE>
 
     1.2  NOTICE TO COMPANY.  In order to convert all or any portion of its
          -----------------                                                
Notes into shares of Series E Preferred Stock, GE shall deliver the Notes to be
converted to the Company at its principal office, together with written notice
that it elects to convert those Notes into shares of Series E Preferred Stock in
accordance with the provisions of this Section 1.  Such notice shall specify the
amount of Notes to be converted and the name or names in which GE wishes
the certificates for shares of Series E Preferred Stock to be registered,
together with the address or addresses of the person or persons so named, and,
if so required by the Company, be accompanied by a written instrument or
instruments of transfer in form satisfactory to the Company, duly executed by GE
or by its attorney duly authorized in writing.

     1.3  DELIVERY OF CERTIFICATE.  As promptly as practicable after the
          -----------------------                                       
surrender as hereinabove provided of Notes for conversion into shares of Series
E Preferred Stock, the Company shall deliver or cause to be delivered GE, or
GE's designees, certificates representing the number of fully paid and non-
assessable shares of Series E Preferred Stock into which the Notes are entitled
to be converted, together with a cash adjustment in respect of any fraction of a
share to which GE shall be entitled (as provided below), and, if less than the
entire face amount of a Note surrendered is to be converted, a new Note for the
balance of the Note not so converted.  So long as any Notes remain unpaid, the
Company shall not close its Series E Preferred Stock transfer books.  The
issuance of certificates for shares of Series E Preferred Stock upon the
conversion of Notes shall be made without charge to GE for any tax in respect of
the issuance of such certificates (other than any tax if the shares of Series E
Preferred Stock are to be registered in a name different from that of the
registered holder of the Note).

     1.4  FRACTIONAL SHARES.  No fractional shares of Series E Preferred Stock
          -----------------                                                   
or scrip representing fractional shares of Series E Preferred Stock shall be
issued upon any conversion of any Notes, but, in lieu thereof, there shall be
paid an amount in cash equal to the Market Price (as defined in the Series E
Preferred Stock) of the number shares of Common Stock into which such fraction
of a share of Series E Preferred Stock would be otherwise convertible into
according to the terms of the Series E Preferred Stock with any resulting
fractions of Common Stock being paid cash in accordance with the Series E
Preferred provisions pertaining to fractional shares.

     1.5  RESERVATION OF SHARES.  The Company shall at all times reserve and
          ---------------------                                             
keep available out of its authorized but unissued shares of Series E Preferred
Stock, solely for the purpose of effecting the conversion of Notes, the full
number of whole shares of Series E Preferred Stock then deliverable upon the
conversion of all the Notes.  The Company shall take at all times such corporate
action as shall be necessary in order that the Company may validly and legally

                                      -4-
<PAGE>
 
issue fully paid and non-assessable shares of Series E Preferred Stock upon the
conversion of the Notes in accordance with the provisions of this Section 1.

     1.6  RETIREMENT OF NOTES.  Any Notes converted pursuant to the provisions
          -------------------                                                 
of this Section 1 shall be deemed retired, repaid and fully satisfied.

     1.7  RIGHTS AS EQUITY HOLDER.  GE shall not be entitled to any rights as a
          -----------------------                                              
stockholder of the Company pursuant to the Note Purchase Agreement until, and to
the extent that, the Notes have been converted into shares of Series E Preferred
Stock in accordance with the provisions hereof.

     1.8  NOTES.  GE's Notes shall be restated to reflect the provisions of this
          -----                                                                 
Section 1 in substantially the form attached as Exhibit 2.

     1.9  TRANSFERABILITY.  The conversion rights provided by this Section 1 of
          ---------------                                                      
this Eleventh Amendment may be exercised only by GE or one or more Affiliates
(as defined above) of GE and no other transferee or assignee of the Note may
convert the Note into Series E Preferred Stock, or any other securities of the
Company, pursuant to this Eleventh Amendment or otherwise.

     SECTION 2.  AMENDMENTS TO NOTE PURCHASE AGREEMENT

     The Company and the Holders agree as follows:

     2.1  NEGATIVE AND MAINTENANCE COVENANTS.
          ---------------------------------- 

     (a) The words "and the Debentures" is deleted from clause (ii) of Section
10.01(a) of the Note Purchase Agreement.

     (b)  Section 10.02:

          (i) Subsection 10.02(e) of the Note Purchase Agreement is hereby
amended by deleting it in its entirety and substituting the following therefor:

     "(e)  Subject to the limitations set forth in Section 10.03(d) hereof, any
     Lien created to secure any Indebtedness incurred or assumed to pay all or
     any part of the purchase price of property acquired by the Company or a
     Subsidiary after December 31, 1994 (or created to secure Indebtedness
     incurred to finance equipment pursuant to Section 10.03(d) hereof);
     provided, that (i) any such Lien shall be confined solely to the item or
     --------                                                                
     items of property so acquired or currently owned, (the "Financed
     Equipment") and any property that is an improvement to or 

                                      -5-
<PAGE>
 
     upgrade of or acquired for specific use in connection with such Financed
     Equipment; provided, however, that in the case of an MRI Unit or a CT Unit
                --------  -------                                              
     (collectively, "Units") currently owned by the Company or a Subsidiary that
     is, at the time of acquisition of a newly-acquired Unit, subject to a Lien
     in favor of the same secured party financing the purchase price of the
     newly-acquired Unit, such Lien securing the indebtedness relating to the
     newly-acquired Unit may extend to the currently-owned Unit and such
     Lien securing the Indebtedness relating to the currently-owned Unit may
     extend to the newly-acquired Unit; provided, further, that notwithstanding
                                        --------  -------                      
     the immediately preceding proviso no Lien under this Section 10.02(e) shall
     extend to any Unit as to which the purchase price is paid in full and there
     is outstanding no Indebtedness incurred to finance such purchase price, it
     being understood that the cross-collateralization permitted by the
     immediately preceding proviso shall immediately cease and terminate as to
     any Unit upon payment of the purchase price (or related purchase money
     Indebtedness) of such Unit; and (ii) in the case of newly-acquired Financed
     Equipment, any such Lien shall be created within six (6) months after the
     acquisition thereof."

          (ii) Subsection 10.02(j) of the Note Purchase Agreement is hereby
amended by deleting it in its entirety and substituting the following therefor:

     "(j)  Any Lien created to secure Indebtedness incurred to finance equipment
     pursuant to the terms of Section 10.03(d) hereof;"
 
          (iii)   Subsection 10.02(k) of the Note Purchase Agreement is hereby
amended by deleting it in its entirety and substituting the following therefor:

     "(k)  Any extension, renewal or replacement (or successive extensions,
     renewals or replacements), in whole or in part, of (a) through (j) above,
     so long as the outstanding principal amount of the Indebtedness secured by
     such Lien at the time of such extension, renewal or replacement is not
     increased, nor the periodic debt service payment (principal and interest)
     payable with respect thereto increased, and the renewed or extended Lien
     does not cover any property which is not covered by the existing Lien
     renewed or extended thereby."


     (c)  Section 10.03:

                                      -6-
<PAGE>
 
          (i) Clause (a) of Section 10.03 of the Note Purchase Agreement is
hereby amended by deleting it in its entirety and substituting the following
therefor:

     "(a)  The Company may become and remain liable with respect to Indebtedness
     for working capital purposes under the Working Capital Facility as provided
     for in Section 9.06 hereof or any renewal, extension or replacement
     thereof, provided that the indebtedness thereunder does not at any time
     exceed 75% of the net accounts receivable of the Company (determined in
     accordance with GAAP) and the terms and conditions thereof are not, in the
     aggregate, materially more burdensome than under the preexisting Working
     Capital Facility and reflect current market conditions;"

          (ii) The words "and the subordinated Debentures" are deleted from
clause (b) of Section 10.03 of the Note Purchase Agreement.

 
          (iii)  Clause (d) of Section 10.03 of the Note Purchase Agreement is
hereby amended by deleting it in its entirety and substituting the following
therefor:

     "(d)  Subject to the limitations on incurrence of Capital Expenditures set
     forth in Section 10.08 hereof, the Company or any Subsidiary may become and
     remain liable with respect to Indebtedness incurred to acquire equipment
     (including CT Scanners and MRI Units and related additions, parts and
     improvements)."

          (iv) Clause (f) of Section 10.03 of the Note Purchase Agreement is
hereby amended by deleting it in its entirety and substituting the following
therefor:

     "(f)  Any Subsidiary may become and remain liable with respect for Debt for
     Money Borrowed of such Subsidiary owing to the Company or to a Wholly-Owned
     Subsidiary consisting of (i) Indebtedness arising out of an Investment by
     the Company or such Wholly-Owned Subsidiary as permitted by Section
     10.04(a) through (c) or (ii) intercompany operating advances incurred in
     the ordinary course of business.

                                      -7-
<PAGE>
 
          (v) Clause (h) of Section 10.03 of the Note Purchase Agreement is
hereby amended by deleting it in its entirety and substituting the following
therefor:

     "(h)  Indebtedness which is a renewal, extension or replacement of existing
     Indebtedness permitted under this Section 10.03; provided that the
     principal amount of such Indebtedness is less than or equal to the
     principal amount outstanding immediately prior to such renewal, extension
     or replacement and that the periodic debt payment with respect thereto is
     less than or equal to the periodic debt payment currently payable with
     respect to such Indebtedness."

     (d) Section 10.04 of the Note Purchase Agreement is hereby amended by
deleting it in its entirety and substituting the following therefor:

     "Investments.  The Company will not, and will not permit any of its
      -----------                                                       
     Subsidiaries to, make any Investments other than the following:  (a)
     capital contributions and funded loans to any Subsidiary, and any
     partnership or other joint venture (including a corporate joint venture);
                                                                              
     provided that the aggregate outstanding amount of all Investments made
     --------                                                              
     pursuant to this clause (a) does not exceed $5,000,000 at any time; (b)
     loans and advances to employees in the ordinary course of business for a
     proper corporate purpose not to exceed $250,000 in the aggregate at any
     time outstanding (excluding notes received from option holders in payment
     of the exercise price of stock options issued pursuant to a stock option
     plan of the Company approved by the Company's Board of Directors); (c)
     Investments with respect to hedging the Company's exposure to foreign
     currency fluctuations to the extent that the Company has sales denominated
     in such foreign currency; (d) Investments in Interest Rate Protection
     Agreements; (e) short-term operating advances described in Section
     10.03(f)(ii), to the extent such advances constitute Investments; and (f)
     Investments where the consideration paid by the Company consists of equity
     securities of the Company, to the extent that consideration was or is paid
     in that form.  For purposes of computing the amount subject to the
     $5,000,000 limitation in clause (a) above, (I) there shall be excluded
     Investments where the consideration paid by the Company consists of equity
     securities of the Company, to the extent that consideration was or is paid
     in that form, and (II) there shall be included Investments made only from
     and after the 

                                      -8-
<PAGE>
 
     Effective Date of the Tenth Amendment and not Investments made prior
     thereto. "

     (e) Section 10.08 of the Note Purchase Agreement is hereby amended by
deleting it in its entirety and substituting the following therefor:

     "Capital Expenditures.  The Company will not, and will not permit any of
      --------------------                                                   
     its Subsidiaries to, make Capital Expenditures, unless, after including
     such Capital Expenditures in the aggregate amount of Capital Expenditures
     incurred by the Company and its Subsidiaries during the current Fiscal
     Year, the aggregate Capital Expenditures for such Fiscal Year do not exceed
     an amount equal to $30,000,000 plus the Capital Expenditure Adjustment
     Amount; provided; however, that the Company or any of its Subsidiaries may
             --------  -------                                                 
     dispose of equipment and within 180 days purchase replacement equipment
     with only the net incremental amount being deemed to be a Capital
     Expenditure; provided, further, that to the extent the Company receives
                  --------  -------                                
     credit against the purchase price of newly-acquired equipment as a result
     of a trade-in of currently-owned equipment, the amount of such credit shall
     not be included in determining the amount of Capital Expenditures permitted
     to be incurred hereunder; and provided, further, that if the amount of
                                   --------  ------- 
     permitted Capital Expenditures for any Fiscal Year is not fully utilized,
     then the unutilized portion (up to 50% of the permitted amount for such
     Fiscal Year) may be carried forward and made in the following Fiscal Year,
     in addition to the amount otherwise permitted for such following Fiscal
     Year."

     (f) The last sentence of Section 10.10 of the Note Purchase Agreement is
deleted.

     (g) The second paragraph of Section 10.12 of the Note Purchase Agreement is
hereby amended by deleting it in its entirety and substituting the following
therefor:

     "Notwithstanding the foregoing, the Company or a Subsidiary may make any
     such disposition and the properties involved in any such disposition shall
     be excluded from the foregoing computation set forth in (i) above if within
     one hundred eighty (180) days after such disposition the Company or
     Subsidiary reinvests the proceeds in assets substantially similar to those
     which are disposed of, or applies the net proceeds (after deducting direct
     costs and expenses incurred as a result of such disposition and discharging
     any underlying debt which is secured by such property) to the 

                                      -9-
<PAGE>
 
     prepayment or redemption of the Secured Obligations or the Notes or other
     Indebtedness of the Company, or retains the proceeds in cash or cash-
     equivalent investments; provided, further, that the aggregate net book
                             --------  -------
     value of properties disposed of under this Section 10.12 the net proceeds
     of which are so applied shall not exceed the greater of $10,000,000 or
     fifteen percent (15%) of the net book value of the then existing MRI
     Units."

     (h) Clause (b) of Section 10.13 of the Note Purchase Agreement is deleted.

     (i) The parenthetical phrase "(excluding for this purpose lease payment
obligations with respect to the lease of premises by Woodward Park Imaging)" is
deleted from Section 10.14 of the Note Purchase Agreement.

     (j) The word "diagnostic" is deleted from the last sentence of Section
10.14 of the Note Purchase Agreement, and the words "and related trailers or
buildings and related improvements" are added after the word "equipment" at the
end of such sentence.

     2.2  FINANCIAL INFORMATION AND REPORTING.  The words "in duplicate" are
deleted from the first paragraph of Section 7 of the Note Purchase Agreement.

     2.3  DEFINITIONS

     (i) The following definitions are added to Section 11.01 of the Note
Purchase Agreement:

          "Capital Expenditure Adjustment Amount" shall mean, for any Capital
Expenditure Period corresponding to a capital raising transaction described in
clause (i) following, the positive amount, if any, of (i) net cash proceeds from
issuances of Common Stock or other securities convertible into Common Stock or
other non-redeemable equity securities of the Company minus (ii) cash expended
during such Capital Expenditure Period by the Company or its Majority-Owned
Subsidiaries in connection with business acquisitions (including without
limitation acquisitions of substantially all of the assets of a Person permitted
under this Agreement); provided, however, that any cash expenditures
                       -----------------                            
constituting Capital Expenditures for such Capital Expenditure Period that are
already included in the calculation of the total amount of Capital Expenditures
for such Capital Expenditure Period for purposes of determining compliance with
Section 10.08 hereof (without considering the Capital Expenditure Adjustment
Amount) shall only be included once in such total amount, regardless of whether
such Capital Expenditures arise in connection with a business acquisition.  If
the Company could properly include 

                                     -10-
<PAGE>
 
a Capital Expenditure within the general limitation under Section 10.08 hereof
and/or under an available Capital Expenditure Adjustment Amount, the Company
shall be entitled in its discretion to select the allocation of such Capital
Expenditure. To the extent that amounts expended are included under clause (ii)
of the foregoing definition, such amounts shall be deducted from the amount
described in clause (i) on a chronological basis (i.e., the first such amount
                                                  ----
deducted will be the first of such amounts expended, and so on).

          "Capital Expenditure Period" means, with respect to each capital
raising transaction described in clause (i) of the definition of Capital
Expenditure Adjustment Amount, the two-year period beginning with the date that
net proceeds with respect to such transaction are received by the Company.

     (ii) The definition of "Fiscal Year" in Section 11.01 of the Note Purchase
Agreement is deleted and replaced with the following definition:

          "Fiscal Year" shall mean the fiscal year of the Company, which shall
be the twelve (12) month period ending on December 31 in each year or such other
period as the Board of Directors of the Company may adopt."

     (iii)  The definitions of "Consolidated Net Tangible Assets," "Consolidated
Operating Income Before Depreciation," "Current Equipment Obligations,"
"Currently Owned-Equipment," and "Permitted Investments" in Section 11.01 of the
Note Purchase Agreement are deleted.

     SECTION 3.  CONSIDERATION FOR AMENDMENT

     As partial consideration for entering into this Eleventh Amendment, the
Company, concurrently with the execution hereof, is entering into certain
transactions with GE pursuant to a Stock Purchase Agreement of even date
herewith, the consummation of which transactions the Holders hereby acknowledge
and agree will be beneficial to the Holders and, accordingly, provide the
Holders with sufficient consideration for entering into this Eleventh Amendment.

                                     -11-
<PAGE>
 
     SECTION 4.   MISCELLANEOUS

     4.1  REFERENCE TO AND EFFECT ON THE NOTE PURCHASE AGREEMENT.
          -------------------------------------------------------

          (i)  On and after the date of this Eleventh Amendment, each reference
     in the Note Purchase Agreement to "this Agreement", "hereunder", "hereof",
     "herein" or words of like import referring to the Note Purchase Agreement,
     and each reference in any other related documents to the "Note Purchase
     Agreement", "thereunder", "thereof" or words of like import referring to
     the Note Purchase Agreement shall mean and be a reference to the Note
     Purchase Agreement as amended to give effect to the Eleventh Amendment.

          (ii)  Except as specifically amended by this Eleventh Amendment, the
     Note Purchase Agreement shall remain in full force and effect and is hereby
     ratified and confirmed.

          (iii)  The execution, delivery and performance of this Eleventh
     Amendment shall not, except as expressly provided herein, constitute a
     waiver of any provision of, or operate as a waiver of any right, power or
     remedy of the Holders under, the Note Purchase Agreement.

     4.2  HEADINGS.  Section and subsection headings in this Eleventh Amendment
          --------                                                             
are included herein for convenience of reference only and shall not constitute a
part of this Eleventh Amendment for any other purpose or be given any
substantive effect.

     4.3  APPLICABLE LAW.  THIS ELEVENTH AMENDMENT SHALL BE GOVERNED BY, AND
          --------------                                                    
SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH, THE INTERNAL LAWS OF THE
STATE OF NEW YORK, WITHOUT REGARD TO CONFLICTS OF LAWS PRINCIPLES.

     4.4  COUNTERPARTS; EFFECTIVENESS.  This Eleventh Amendment shall be deemed
          ---------------------------                                          
effective between GE and the Company as of the date first written above, and
shall be deemed effective between DVI and the Company as of the date written
below opposite DVI's signature.  This Eleventh Amendment may be executed in any
number of counterparts and by different parties hereto in separate counterparts,
each of which when so executed and delivered shall be deemed an original, but
all such counterparts together shall constitute but one and the same instrument;
signature pages may be detached from multiple separate counterparts and attached
to a single counterpart so that all signature pages are physically attached to
the same document.

                                     -12-
<PAGE>
 
          IN WITNESS WHEREOF, the parties hereto have caused this Eleventh
Amendment to be duly executed and delivered by their respective officers
thereunto duly authorized as of the date first written above.

"COMPANY"                      ALLIANCE IMAGING, INC., A DELAWARE CORPORATION


                               By:  ______________________________
                               Title: ______________________________


"GE"                            GENERAL ELECTRIC COMPANY, A NEW YORK CORPORATION


                               By:  ______________________________
                               Title: ______________________________


"DVI"                          DVI FINANCIAL SERVICES INC., A DELAWARE
                               CORPORATION

DVI effective
date:  March 27, 1997

                               By:  ______________________________
                               Title: ______________________________
 

                                     -13-

<PAGE>
 
                                                                       EXHIBIT 3

                            ALLIANCE IMAGING, INC.


                                   RESTATED
                          7.50% SENIOR NOTE DUE 2003



$12,700,000                                                           Note No. 8
New York, New York                                                March 26, 1997


FOR VALUE RECEIVED, the undersigned, ALLIANCE IMAGING, INC., a Delaware
corporation (herein called the "Company"), hereby promises to pay to GENERAL
ELECTRIC COMPANY, A NEW YORK CORPORATION ACTING THROUGH GE MEDICAL SYSTEMS, or
registered assigns ("GE") the principal sum of TWELVE MILLION SEVEN HUNDRED
THOUSAND DOLLARS ($12,700,000) (or so much thereof as shall not have been
prepaid) on December 31, 2003, with interest (computed on the basis of a 360-day
year of twelve 30-day months) on the unpaid principal amount hereof at the rate
of 7.50% per annum from October 1, 1994 payable monthly in arrears on the last
day of each month commencing on the first such date occurring after the date
hereof, until said principal shall have become due and payable, and thereafter
to pay interest (so computed) at the rate of 8.50% per annum on any overdue
principal and prepayment charge and, to the extent permitted by applicable law,
on any overdue interest, until the same shall be paid.  Subject to Section 15.01
of the Note Purchase Agreements referred to below, payments of principal,
prepayment charge (if any) and interest are to be made at the principal office
of GENERAL ELECTRIC COMPANY, a New York corporation,  acting through GE Medical
Systems of Waukesha, in Wisconsin, in lawful money of the United States of
America.

This Note replaces and is delivered in substitution for the Company's 7.5%
Senior Note due 2003 issued to GE by the Company pursuant to the Tenth
Amendment, dated as of November 6, 1996, to the Note Purchase Agreement dated as
of April 14, 1989 entered into by the Company and certain institutional
investors (as amended to the date hereof, the "Note Purchase Agreement"), 
<PAGE>
 
and the holder of this Note is entitled to enforce the provisions and enjoy the
benefits thereof, except as provided below and in the Note Purchase Agreement.
As provided in the Note Purchase Agreement, this Note is subject to certain
optional prepayments, all as specified in the Note Purchase Agreement. Except as
provided below and in the Note Purchase Agreement, this Note is convertible into
shares of the Company's Series E Preferred Stock, as specified in the Eleventh
Amendment to the Note Purchase Agreement dated as of March 25, 1997.

Upon surrender of this Note for registration of transfer, duly endorsed, or
accompanied by a written instrument of transfer duly executed, by the registered
holder hereof or such holder's attorney duly authorized in writing, a new Note
or Notes for a like aggregate principal amount will be issued to, and, at the
option of the holder, registered in the name of, the transferee.  The Company
and any agent of the Company may deem and treat the person in whose name this
Note is registered as the holder and owner hereof for the purpose of receiving
payments and, with the exceptions noted below, for all other purposes
whatsoever, and shall not be affected by any notice to the contrary.

The conversion rights applicable to this Note may be exercised only by GE or one
or more Affiliates (as defined in that certain Bridge Loan Agreement, dated as
of December 31, 1996, between the Company and GE) of GE and no other transferee
or assignee of this Note may convert this Note into Series E Preferred Stock, or
any other securities of the Company, pursuant to the Note Purchase Agreement or
otherwise.

In case of Event of Default (as defined in the Note Purchase Agreement) shall
occur and be continuing, the principal of this Note may become or be declared
due and payable in the manner and with the effect provided in the Note Purchase
Agreement.

This Note is made and delivered in New York, New York, and shall be governed by
the laws of the State of New York.

                                           ALLIANCE IMAGING, INC.
<PAGE>
 
                                           By: ____________________________
                                               Terrence M. White
                                               Senior Vice President,
                                               Chief Financial Officer and
                                               Secretary


This note has been transferred to and registered in the name of the above payee
on the books of Alliance Imaging, Inc. as of March 26, 1997.

<PAGE>
 
                                                                       EXHIBIT 4

                                                                  EXECUTION COPY

                            ALLIANCE IMAGING, INC.
                                        
           AMENDED CERTIFICATE OF DESIGNATION, PREFERENCES AND RIGHTS

                      OF SERIES D 4% CUMULATIVE REDEEMABLE
                          CONVERTIBLE PREFERRED STOCK

             (Pursuant to Section 151(g) of the General Corporation

                         Law of the State of Delaware.)

                                        
     Alliance Imaging, Inc., a corporation organized and existing under the laws
of the State of Delaware (hereinafter the "Company"), DOES HEREBY CERTIFY THAT,
pursuant to authority conferred upon the Board of Directors of the Company (the
"Board") by the Restated Certificate of Incorporation of the Company, as amended
(the "Certificate of Incorporation"), the Board, pursuant to a unanimous written
consent dated as of March 25, 1997, adopted the following resolutions
authorizing the issuance of Series D 4% Cumulative Redeemable Convertible
Preferred Stock of the Company, which resolutions are still in full force and
effect and are not in conflict with any provisions of the Certificate of
Incorporation or Bylaws of the Company:

     RESOLVED, that pursuant to authority vested in the Board by the Certificate
of Incorporation, the Board does hereby establish a series of Preferred Stock of
the Company from the Company's authorized class of 1,000,000 shares of $0.01 par
value preferred shares, such series to consist of 18,000 shares, which number
may be decreased (but not below the number of shares thereof then outstanding)
from time to time by the Board, and to the extent that the voting rights,
designation, powers, preferences and relative participating, optional or other
special rights and the qualifications, limitations or restrictions of that
series are not stated and expressed in the Certificate of Incorporation, does
hereby fix and state the voting rights, designation, powers, preferences and
relative participating, optional or other special rights and the qualifications,
limitations or restrictions thereof, as follows:

     1.   DEFINITIONS.  Unless otherwise specified herein, the following
          -----------                                                   
capitalized terms shall have the meanings ascribed to them below:

          ACCUMULATED DIVIDENDS.  "Accumulated Dividends" shall have the meaning
          ---------------------                                                 
set forth in Section 4(d).

          AFFILIATE.  "Affiliate" shall mean, with respect to any Person, any
          ---------                                                          
other Person which directly or indirectly controls or is controlled by or is
under common control with such Person, and, with respect to the Company only,
includes any other Person with whom the Company has any joint venture,
partnership, or other shared investment interest.  As used in this definition,
"control" (including its correlative meanings, "controlled by" and "under common
control with") shall mean possession, directly or indirectly, of power to (i)
direct or cause the direction of management or policies of such Person (whether
through ownership of securities or 
<PAGE>
 
partnership or other ownership interests, by contract or otherwise) or (ii) vote
10% or more of the securities having ordinary voting power for the election of
directors of such Person.

          APPLICABLE LAW.  "Applicable Law" shall mean, with respect to any
          --------------                                                   
Person, any federal, state or local statute, law, ordinance, rule,
administrative interpretation, regulation, order, writ, injunction, directive,
judgment, decree or other requirement of any Governmental Authority applicable
to such Person or any of its Affiliates or any of their respective properties,
assets, officers, directors, employees, consultants or agents.

          AVAILABLE ASSETS.  "Available Assets" shall have the meaning set forth
          ----------------                                                      
in Section 5(a).

          CAPITAL LEASE.  "Capital Lease" shall mean any lease by a Person of
          -------------                                                      
any property (whether real, personal or mixed) which, in conformity with GAAP
(including Statement of Financial Accounting Standards No. 13 of the Financial
Accounting Standards Board), is accounted for as a capital lease on the balance
sheet of such person.

          CAPITAL LEASE OBLIGATIONS.  "Capital Lease Obligations" shall mean, as
          -------------------------                                             
to any Person, the obligations of such Person to pay rent or other amounts under
a Capital Lease and, for purposes of this Certificate of Designation, the amount
of such obligations shall be the capitalized amount thereof, determined in
accordance with GAAP (including Statement of Financial Accounting Standards No.
13 of the Financial Accounting Standards Board).

          CHAMPUS. "CHAMPUS" has the meaning set forth in Section 8(d)(1)(C).
          -------                                                            

          CHANGE IN CONTROL.   "Change in Control" shall be deemed to have
          -----------------                                               
occurred (i) at such time as any person (as defined in Section 13(d)(3) of the
Securities and Exchange Act of 1934) at any time shall directly or indirectly
acquire more than 40% of the voting power of the Common Stock of the Company,
(ii) at such time as during any one year period, individuals who at the
beginning of such period constitute the Company's Board cease to constitute at
least a majority of such Board, (iii) upon consummation of a merger or
consolidation of the Company into or with another corporation in which the
shareholders of the Company immediately prior to the consummation of such
transaction shall own less than Fifty Percent (50%) of the voting securities of
the surviving corporation (or the parent corporation of the surviving
corporation where the surviving corporation is wholly-owned by the parent
corporation) immediately following the consummation of such transaction or (iv)
the sale, transfer or lease (but not including a transfer or lease by pledge or
mortgage to a bona fide lender) of all or substantially all of the assets of the
Company, in any of cases (i), (ii), (iii) and (iv) in a single transaction or
series of transactions; provided, however, that no Change in Control shall be
                        -----------------                                    
deemed to have occurred solely as a result of General Electric Company, a New
York corporation, directly or indirectly acquiring more than 40% of the voting
power of the Common Stock of the Company.

          CHANGE IN CONTROL SPECIAL DIVIDEND A.  "Change in Control Special
          ------------------------------------                             
Dividend A" shall have the meaning set forth in Section 8(c)(1).
<PAGE>
 
          CHANGE IN CONTROL SPECIAL DIVIDEND B.  "Change in Control Special
          ------------------------------------                             
Dividend B" shall have the meaning set forth in Section 9(b).

          COMMON STOCK.  "Common Stock" shall mean the Company's Common Stock,
          ------------                                                        
$0.01 par value per share.

          COMPANY CHANGE IN CONTROL TRANSACTION.  "Company Change in Control
          -------------------------------------                             
Transaction" shall have the meaning set forth in Section 8(c)(2)(A).

          CONVERSION DATE.  "Conversion Date" shall have the meaning set forth
          ---------------                                                     
in Section 6(a).

          CONVERSION PRICE.  "Conversion Price" shall have the meaning set forth
          ----------------                                                      
in Section 7, as adjusted from time to time as set forth therein.

          DGCL.  "DGCL" shall mean the Delaware General Corporation Law.
          ----                                                          

          DIVIDEND PAYMENT DATE.  "Dividend Payment Date" shall have the meaning
          ---------------------                                                 
set forth in Section 4(c).

          DIVIDEND PERIOD.  "Dividend Period" shall have the meaning set forth
          ---------------                                                     
in Section 4(b).

          EXCLUDED STOCK.  "Excluded Stock" shall have the meaning set forth in
          --------------                                                       
Section 7(b).

          FACE AMOUNT.  The "Face Amount" of each share of Series D Preferred
          -----------                                                        
Stock (regardless of its par value) shall be One Thousand Dollars ($1,000.00),
as the Series D Preferred Stock is presently constituted, such amount to be
proportionately adjusted to reflect any combination, consolidation,
reclassification or like adjustment of or to the Series D Preferred Stock.

          FEDERAL HEALTH CARE PROGRAM. "Federal Health Care Program" shall have
          ---------------------------                                          
the meaning set forth in Section 8(d)(1)(E).

          FUNDED DEBT.  "Funded Debt" shall mean as applied to any Person, all
          -----------                                                         
Indebtedness of such Person, in a principal amount of at least One Million
Dollars ($1,000,000) in each instance, which by its terms or by the terms of any
instrument or agreement relating thereto matures, or which is otherwise payable
or unpaid, more than one year from, or is directly or indirectly renewable or
extendible at the option of the debtor to a date more than one year (including
an option of the debtor under a revolving credit or similar agreement obligating
the lender or lenders to extend credit over a period of more than one year) from
the date of the creation thereof; provided that "Funded Debt" shall include, as
                                  --------                                     
at any date of determination, any portion of such Funded Debt outstanding on
such date which matures on demand or within one year from such date (whether by
sinking fund, other required prepayment or final payment at maturity) and which
is not directly or indirectly renewable, extendible or refundable, at the option
of the debtor to a date more than one year from such date; provided, further,
                                                           --------  ------- 
that "Funded Debt" 
<PAGE>
 
shall include all Indebtedness pursuant to that certain Note Purchase Agreement
dated as of April 14, 1989, as amended to and including the Issue Date; and
provided, further, that except with respect to Indebtedness pursuant to that
- --------  -------
certain Note Purchase Agreement dated as of April 14, 1989, as amended to and
including the Issue Date, "Funded Debt" shall not include (i) Indebtedness
secured by equipment, trailers or modular buildings used in the business of the
Company or (ii) Indebtedness convertible into equity securities of the Company
on commercially reasonable terms.

          FUNDED DEBT DEFAULT.  "Funded Debt Default" shall mean any date 30
          -------------------                                               
days after the Company shall have Knowledge that it is in default with respect
to any Funded Debt, unless during such 30 day period either (i) such default
shall have been waived by the lender with respect to such Funded Debt or (ii)
the agreement or agreements governing such Funded Debt shall have been amended
to eliminate such default, in either of cases (i) or (ii) without any economic
consideration (other than such consideration required by the terms of the
documentation with respect to such Funded Debt as in effect prior to any
amendment of such documentation described in clause (ii) above) provided to the
lender with respect to such Funded Debt by the Company.

          GAAP.  "GAAP" means generally accepted accounting principles.
          ----                                                         

          GENERAL ELECTRIC. "General Electric" shall have the meaning set forth
          ----------------                                                     
in Section 8(d)(1)(E).

          GOVERNMENTAL AUTHORITY. "Governmental Authority" shall mean any
          ----------------------                                         
federal, territorial, state or local governmental authority, quasi-governmental
authority, instrumentality, court, government or self-regulatory organization,
commission, tribunal or organization or any regulatory, administrative or other
agency, or any political or other subdivision, department or branch of any of
the foregoing, in all such cases whether domestic or foreign.

          HOLDER SPECIAL REPURCHASE EVENT NOTICE.  "Holder Special Repurchase
          --------------------------------------                             
Event Notice" shall have the meaning set forth in Section 8(d)(3)(A).

          INDEBTEDNESS.  "Indebtedness" shall mean, as to any Person without
          ------------                                                      
duplication, (a) all items which, in accordance with GAAP, would be included as
a liability on the balance sheet of such Person and its Majority-Owned
Subsidiaries (including any obligation of such Person to the issuer of any
letter of credit for reimbursement in respect of any drafts drawn under such
letter of credit), excluding obligations in respect of deferred taxes and
deferred employee compensation and benefits, and anything in the nature of
capital stock, surplus capital and retained earnings; (b) the amount available
for drawing under all letters of credit issued for the account of such Person;
(c) obligations (whether or not such Person has assumed or become liable for the
payment of such obligation) secured by liens; (d) Capital Lease Obligations of
such Person; and (e) all guarantees of such Person, provided, however, that the
                                                    --------                   
term Indebtedness shall not include trade accounts payable (other than for
borrowed money) arising in, and accrued expenses incurred in, the ordinary
course of business of such Person, provided the same are not more than 45 days
                                   --------                                   
overdue or are being contested in good faith.
<PAGE>
 
          ISSUE DATE.  "Issue Date" shall mean, with respect to any shares of
          ----------                                                         
Series D Preferred Stock, the date such shares of Series D Preferred Stock are
issued.

          JUNIOR SECURITIES.  "Junior Securities" shall have the meaning set
          -----------------                                                 
forth in Section 3.

          KNOWLEDGE.  "Knowledge" or "knowledge," with respect to any Person,
          ---------                                                  
shall mean the actual knowledge of such Person, after reasonable inquiry. For
purposes hereof, a Person shall be deemed to have actual knowledge of the
contents of all books and records with respect to which such Person has
reasonable access. Without limiting the generality of the foregoing, with
respect to any Person that is a corporation, partnership or other business
entity, actual knowledge shall be deemed to include the actual knowledge of all
principal employees of any such Person (which, for purposes of the Company,
shall include without limitation Richard N. Zehner, Vincent S. Pino, Terrence M.
White, Jay A. Mericle, Terry A. Andrues, Neil M. Culinan, Ph.D., Cheryl A. Ford,
and Michael W. Grismer) as well as the Chief Executive Officer, President, Chief
Financial Officer and all Vice Presidents in the case of corporate Persons, and
general partners in the case of general or limited partnerships, as the case may
be.

          LIQUIDATION EVENT.  "Liquidation Event" shall mean any of the
          -----------------                                            
following:  (i) a liquidation or winding up of the Company, (ii) a merger or
consolidation of the Company into or with another corporation in which the
shareholders of the Company immediately prior to the consummation of such
transaction shall own less than Fifty Percent (50%) of the voting securities of
the surviving corporation (or the parent corporation of the surviving
corporation where the surviving corporation is wholly-owned by the parent
corporation) immediately following the consummation of such transaction, or
(iii) the sale, transfer or lease (but not including a transfer or lease by
pledge or mortgage to a bona fide lender) of all or substantially all of the
assets of the Company; in any of cases (i), (ii) or (iii) in a single
transaction or series of transactions.

          LIQUIDATION PREFERENCE AMOUNT.  "Liquidation Preference Amount" shall
          -----------------------------                                        
have the meaning set forth in Section 5(a).

          MAJORITY-OWNED SUBSIDIARY.  "Majority-Owned Subsidiary" means with
          -------------------------                                         
respect to any Person any Subsidiary of such Person of which at least a majority
of the outstanding shares, partnership interests or other equity interests
therein is at the time directly or indirectly owned or controlled by such Person
or any other Subsidiary which is a consolidated subsidiary of such Person under
GAAP or one or more of the Majority-Owned Subsidiaries of such Person or by such
Person and one or more of the Majority-Owned Subsidiaries of such Person.

          MATERIAL ADVERSE EFFECT. "Material Adverse Effect" shall mean, with
          -----------------------                                            
respect to any Person or designated group of Persons, a change in, or effect on,
or group of such changes in or effects on, the operations, financial condition
or results of operations, prospects, assets or liabilities of the Person or
group of Persons, as the case may be, taken as a whole, that results in a
material adverse effect on, or a material adverse change in, the operations,
financial condition, results of operations, prospects, assets or liabilities of
the Person or group of Persons, as the case may be, taken as a whole, excluding
adverse changes in the general economy.
<PAGE>
 
          MARKET PRICE.  The "Market Price" of a share of Common Stock on or
          ------------                                                      
with respect to any day shall mean (i) the closing sales price on the
immediately preceding trading day of a share of Common Stock on the principal
national securities exchange or automated quotation system on which the shares
of Common Stock are listed or admitted to trading or, if not listed or admitted
to trading on any national securities exchange or automated quotation system,
the average of the last reported bid and asked prices on such immediately
preceding trading day in the over-the-counter market as furnished by the
National Association of Securities Dealers, Inc., or, if such firm is not then
engaged in the business of reporting such prices, as furnished by any similar
firm then engaged in such business selected in good faith by the Company or, if
there is no such firm, as furnished by any member of the National Association of
Securities Dealers, Inc., selected in good faith by the Company, or (ii) if the
shares of Common Stock are not then traded on any such exchange or system, the
amount determined in good faith by the Board to represent the fair value of a
share of Common Stock.

          OTHER CHANGE IN CONTROL TRANSACTION.  "Other Change in Control
          -----------------------------------                           
Transaction" shall have the meaning set forth in Section 8(c)(2)(B).

          PERSON.  "Person" shall mean any natural person, firm, corporation,
          ------                                                             
partnership, limited liability company, association, trust or other entity.

          RECORD DATE.  "Record Date" shall have the meaning set forth in
          -----------                                                    
Section 4(c).

          REDEMPTION DATE.  "Redemption Date" shall have the meaning set forth
          ---------------                                                     
in Section 9(c).

          REDEMPTION PRICE.  "Redemption Price" shall have the meaning set forth
          ----------------                                                      
in Section 9(d).

          REGULAR DIVIDENDS.  "Regular Dividends" shall have the meaning set
          -----------------                                                 
forth in Section 4(a).

          SERIES D PREFERRED STOCK.  "Series D Preferred Stock" shall have the
          ------------------------                                            
meaning set forth in Section 2.

          SERIES E PREFERRED STOCK.  "Series E Preferred Stock" shall mean the
          -------------------------                                           
Company's Series E 4% Cumulative Redeemable Convertible Preferred Stock
designated pursuant to the Certificate of Designation, Preferences and Rights of
Series E 4% Cumulative Redeemable Convertible Preferred Stock dated as of even
date herewith.

          SPECIAL DIVIDEND EVENT TRIGGER DATE.  "Special Dividend Event Trigger
          -----------------------------------                                  
Date" shall have the meaning set forth in Section 4(b).

          SPECIAL DIVIDENDS.  "Special Dividends" shall have the meaning set
          -----------------                                                 
forth in Section 2.

          SPECIAL REPURCHASE EVENT.  "Special Repurchase Event" shall have the
          ------------------------                                            
meaning set forth in Section 8(d)(3).
<PAGE>
 
          SPECIAL REPURCHASE EVENT ELECTION.  "Special Repurchase Event
          ---------------------------------                            
Election" shall have the meaning set forth in Section 8(d)(3)(B).

          SSA. "SSA" shall have the meaning set forth in Section 8(d)(1)(C).
          ---                                                               

          STATE HEALTH CARE PROGRAM. "State Health Care Program" shall have the
          -------------------------                                            
meaning set forth in Section 8(d)(1)(E).

          STOCK PURCHASE AGREEMENT.  "Stock Purchase Agreement" shall mean that
          ------------------------                                             
certain Stock Purchase Agreement dated as of March 25, 1997 between General
Electric and the Company.

          SUBSIDIARY.  "Subsidiary" shall mean with respect to any Person each
          ----------                                                          
corporation, partnership, joint venture or other entity in which such Person
has, directly or indirectly, any equity interest in the capital stock thereof,
any partnership interest, or any other equity interest therein.

     2.   DESIGNATION OF SERIES; ISSUANCE AND FACE AMOUNT.  This series of
          -----------------------------------------------
Preferred Stock is designated "Series D 4% Cumulative Redeemable Convertible
Preferred Stock" (hereinafter the "Series D Preferred Stock"), and the number of
shares which shall constitute such series shall be 18,000, which number may be
decreased (but not below the number thereof then outstanding) from time to time
by the Board. The shares of Series D Preferred Stock shall be issued by the
Company for their Face Amount (as herein defined), in such amounts, at such
times and to such persons as shall be specified by the Board, from time to time.

     3.   RANK.  The Series D Preferred Stock shall, with respect to dividend
          ----
rights and rights on any Liquidation Event, rank senior to all Junior
Securities. "Junior Securities" shall mean (i) the Company's Series A 6.0%
Cumulative Preferred Stock, (ii) the Company's Series B Cumulative Preferred
Stock, (iii) the Company's Series C Convertible Preferred Stock, (iv) Common
Stock, and (v) any other classes or series of stock or other equity securities
of the Company; provided, however, that the term "Junior Securities" shall not
include the Series E Preferred Stock. Shares of the Company's Series E Preferred
Stock shall, with respect to dividend rights and rights on any Liquidation
Event, rank on a pari passu basis with shares of the Series D Preferred Stock.


     4.   DIVIDENDS.

          a.  REGULAR DIVIDENDS.  The holders of record of the Series D
              -----------------
Preferred Stock shall be entitled to receive, out of funds legally available for
such purpose, cumulative preferential cash dividends accruing from the Issue
Date at the rate of Four Percent (4%) per annum of the Face Amount per share
("Regular Dividends").

          b.  SPECIAL DIVIDENDS.
              -----------------

              (1) Each of the following shall be a "Special Dividend Event
     Trigger Date":
<PAGE>
 
          (A) At any time after April 1, 2007, if for fifteen (15) days out of
          any twenty (20) consecutive trading days on which the Common Stock is
          traded, the Market Price per share of Common Stock shall be less than
          83.3% of the then-applicable Conversion Price , then the last such
          trading date shall be a Special Dividend Event Trigger Date.

          (B) The date of any Funded Debt Default shall be a Special Dividend
          Event Trigger Date.

               (2) Upon any Special Dividend Event Trigger Date, the holders of
     record of the Series D Preferred Stock shall be entitled to receive, out of
     funds legally available for such purpose, in addition to Regular Dividends,
     a special dividend in the following per annum percentages of the Face
     Amount per share ("Special Dividends"):

<TABLE>
<CAPTION>
 
- ------------------------------------------------------------------------------
              Time Period                  Special Dividend Percentage
- ------------------------------------------------------------------------------
<S>                                                     <C>
First full calendar month after Special                              
 Dividend Event Trigger Date                             1% 
- ------------------------------------------------------------------------------
 
Second full calendar month after                                     
 Special Dividend Event Trigger Date                     2%
- ------------------------------------------------------------------------------
 
Third full calendar month after Special                              
 Dividend Event Trigger Date                             3%
- ------------------------------------------------------------------------------

Fourth full calendar month after                                     
 Special Dividend Event Trigger Date
 and all time periods thereafter                         4%  
- ------------------------------------------------------------------------------
</TABLE>

               (3) At any time after the Special Dividend Percentage becomes 4%
     under Section 4(b)(2) above, the Company may purchase all (but not less
     than all) of the outstanding shares of Series D Preferred Stock owned by
     each holder at a purchase price per share equal to the Face Amount per
     share plus Accumulated Dividends. To exercise its right to purchase the
     shares of Series D Preferred Stock under this Section 4(b)(3), the Company
     shall send a written notice within ten (10) days after the first day of the
     fourth full calendar month after a Special Dividend Event Trigger Date to
     each holder either electing to repurchase such holder's shares pursuant to
     the provisions of this Section 4(b)(3) or declining to so elect (the
     "Special Dividend Event Repurchase Offer").

               (4) Within 10 days after receipt of a Special Dividend Event
     Repurchase Offer, each holder shall send a written notice to the Company
     either accepting or rejecting such Special Dividend Event Repurchase Offer.
     The Company shall purchase all of the shares of each holder accepting the
     Special Dividend Event Repurchase Offer within 10 days after receipt of the
     notice from the holder referred to in the previous sentence at a purchase
     price per share equal to the Face Amount per share plus Accumulated
     Dividends.
<PAGE>
 
               (5) With respect to the shares held by any holder of shares of
     Series D Preferred Stock that does not accept a Special Dividend Repurchase
     Offer, Special Dividends with respect to such shares shall cease to accrue
     as of the first day of the first calendar month following the date of the
     Special Dividend Event Repurchase Offer (subject to Section 4(b)(6) below).
     Any holder of shares of Series D Preferred Stock that does not timely send
     a written notice to the Company either accepting or rejecting a Special
     Dividend Event Repurchase Offer shall be deemed to have rejected such
     offer.

               (6) Notwithstanding any holder's rejection or deemed rejection of
     a Special Dividend Repurchase Offer, upon any later Special Dividend Event
     Trigger Date Special Dividends on the shares of Series D Preferred Stock
     owned by such holder shall accrue as set forth in Section 4(b)(2) above.

          c.   TIME OF PAYMENT.
               ---------------

               (1) Regular Dividends shall be cumulative from the Issue Date and
     shall be payable in arrears, when and as declared by the Board, on March
     31, June 30, September 30, and December 31 of each year (each such date
     being herein referred to as a "Dividend Payment Date"), commencing on June
     30, 1997. The quarterly period between consecutive Dividend Payment Dates
     shall hereinafter be referred to as a "Dividend Period." Each such Regular
     Dividend shall be paid to the holders of record of the Series D Preferred
     Stock as their names appear on the share register of the Company on the
     corresponding Record Date. As used above, the term "Record Date" means,
     with respect to the Regular Dividend payable on March 31, June 30,
     September 30 and December 31, respectively, of each year, the preceding
     March 15, June 15, September 15 and December 15, or such other record date
     designated by the Board of the Company with respect to the Regular Dividend
     payable on such respective Dividend Payment Date. Regular Dividends on
     account of arrears for any past Dividend Periods may be declared and paid
     at any time, without reference to any Dividend Payment Date, to holders of
     record on such date, not exceeding 50 days preceding the payment date
     thereof, as may be fixed by the Board.

               (2) Special Dividends shall be cumulative from the date of the
     first day of the first full calendar month after any Special Dividend Event
     Trigger Date and shall be payable in arrears, when and as declared by the
     Board, on each Dividend Payment Date.  Each such Special Dividend shall be
     paid to the holders of record of the Series D Preferred Stock as their
     names appear on the share register of the Company on the corresponding
     Record Date.  Special Dividends on account of arrears for any past Dividend
     Periods may be declared and paid at any time, without reference to any
     Dividend Payment Date, to holders of record on such date, not exceeding 50
     days preceding the payment date thereof, as may be fixed by the Board.

          d.   ACCUMULATION.  In the event that full cash Regular Dividends (and
               ------------
any full cash Special Dividends) are not paid to the holders of all outstanding
shares of Series D Preferred Stock, and funds available shall be insufficient to
permit payment in full in cash to all such holders of the preferential amounts
to which they are they entitled, the entire amount available for payment of cash
dividends shall be distributed among the holders of the Series D Preferred Stock
<PAGE>
 
ratably in proportion to the full amount to which they would otherwise be
respectively entitled, and any remainder not paid in cash to the holders of the
Series D Preferred Stock shall cumulate as provided in this subsection 4(d). If,
on any Dividend Payment Date, the holders of the Series D Preferred Stock shall
not have received the full Regular Dividends and full Special Dividends provided
for in this Section 4, then such dividends shall cumulate, whether or not earned
or declared, with additional dividends thereon to accrue at the rate of eight
percent (8%) per annum for each succeeding full Dividend Period during which
such dividends shall remain unpaid. Unpaid dividends for any period less than a
full Dividend Period shall cumulate on a day-to-day basis and shall be computed
on the basis of a 360 day year. "Accumulated Dividends" shall mean, as of any
date, all Regular Dividends and Special Dividends that are either undeclared or
unpaid as of such date.


          e.   RESTRICTIONS WITH RESPECT TO JUNIOR SECURITIES.
               ----------------------------------------------

               (1) So long as any Series D Preferred Stock shall remain
     outstanding, no regular periodic cash dividend whatsoever shall be declared
     or paid upon or set apart for payment on any class of Junior Securities,
     unless in each instance at such time no Accumulated Dividends, Change in
     Control Dividend A or Change in Control Dividend B shall be accrued but
     unpaid.

               (2) So long as any Series D Preferred Stock shall remain
     outstanding, no shares of Junior Securities shall be redeemed or purchased
     for cash by the Company or any parent or subsidiary thereof nor shall any
     moneys be paid to or made available for a sinking fund for redemption or
     purchase of any shares of Junior Securities.

               (3) The restrictions set forth in Sections 4(e)(1) and 4(e)(2)
     above shall not apply to (i) up to $100,000 per calendar year applied to
     redemption or purchase by the Company of Junior Securities owned by
     employees of the Company in connection with the separation of such
     employees from their employment with the Company, or (ii) any particular
     cash dividend, redemption or purchase if the holders of a majority of then
     outstanding shares of Series D Preferred Stock consent in writing to the
     declaration or payment of such cash dividend, redemption or purchase, as
     the case may be.

     5.   LIQUIDATION PREFERENCE.
          ---------------------- 

          a.   GENERAL.  Upon a Liquidation Event, the holders of Series D
               -------                                                    
Preferred Stock then outstanding shall be entitled to be paid, out of the assets
of the Company available for distribution to its shareholders, whether from
capital, surplus or earnings ("Available Assets"), before any payment shall be
made in respect of any Junior Security, an amount equal to the Face Amount per
share plus an amount equal to all Accumulated Dividends, if any (in the
      ----                                                             
aggregate, the "Liquidation Preference Amount").  If upon a Liquidation Event,
the Available Assets shall be insufficient to pay the holders of the Series D
Preferred Stock the full Liquidation Preference Amount, the holders of the
Series D Preferred Stock shall share ratably in any distribution of assets
according to the respective amounts which would be payable in respect of the
shares held by them upon such distribution if all amounts payable on or with
respect to said shares were paid in full.
<PAGE>
 
          b.   NOTICE REQUIRED.  Written notice of any voluntary or involuntary
               ---------------                                                 
Liquidation Event, stating the payment date and the place where the
distributable amount shall be payable, shall be given by mail, postage prepaid,
not less than thirty (30) days prior to the payment date stated therein, to the
holders of record of the Series D Preferred Stock at their respective addresses
as the same shall then appear on the books of the Company.

     6.   CONVERSION.
          ---------- 

          a.   EXERCISE OF CONVERSION RIGHT.  Each holder of Series D Preferred
               ----------------------------                                    
Stock shall have the right, at its option, at any time from the Issue Date
through December 31, 2006, to convert, subject to the terms and provisions of
this Section 6, all or any portion of its Series D Preferred Stock then
outstanding into such number of fully paid and non-assessable shares of Common
Stock as results from dividing (i) the sum of (A) the Face Amount of all shares
of Series D Preferred Stock to be converted plus (B) any Accumulated Dividends
on such shares, by (ii) the applicable Conversion Price (as defined below) on
the Conversion Date (as defined below). Such conversion shall be deemed to have
been made at the close of business on the date that the certificate or
certificates for shares of Series D Preferred Stock shall have been surrendered
for conversion and written notice shall have been received as provided in
Section 6(b) (the "Conversion Date"), so that the person or persons entitled to
receive the shares of Common Stock upon conversion of such shares of Series D
Preferred Stock shall be treated for all purposes as having become the record
holder or holders of such shares of Common Stock at such time and such
conversion shall be at the Conversion Price in effect at such time. Upon
conversion of any shares of Series D Preferred Stock pursuant to this Section 6,
the rights of the holder of such shares upon the Conversion Date shall be the
rights of a holder of Common Stock only, and each such holder shall not have any
rights in its former capacity as a holder of shares of Series D Preferred Stock.

          b.   NOTICE TO COMPANY.  In order to convert all or any portion of its
               -----------------                                                
outstanding Series D Preferred Stock into shares of Common Stock, the holder of
such Series D Preferred Stock shall deliver the shares of Series D Preferred
Stock to be converted to the Company at its principal office, together with
written notice that it elects to convert those shares of Series D Preferred
Stock into shares of Common Stock in accordance with the provisions of this
Section 6.  Such notice shall specify the number of shares of Series D Preferred
Stock to be converted and the name or names in which the holder wishes the
certificates for shares of Common Stock to be registered, together with the
address or addresses of the person or persons so named, and, if so required by
the Company, shall be accompanied by a written instrument or instruments of
transfer in form satisfactory to the Company, duly executed by the registered
holder of the shares of Series D Preferred Stock to be converted or by its
attorney duly authorized in writing.

          c.   DELIVERY OF CERTIFICATE.  As promptly as practicable after the
               -----------------------                                       
surrender as hereinabove provided of shares of Series D Preferred Stock for
conversion into shares of Common Stock, the Company shall deliver or cause to be
delivered to the holder, or the holder's designees, certificates representing
the number of fully paid and non-assessable shares of Common Stock into which
the shares of Series D Preferred Stock are entitled to be converted, together
with a cash adjustment in respect of any fraction of a share to which the holder
shall be entitled as 
<PAGE>
 
provided in Section 6(d), and, if less than the entire number of shares of
Series D Preferred Stock represented by the certificate or certificates
surrendered is to be converted, a new certificate for the number of shares of
Series D Preferred Stock not so converted. So long as any shares of Series D
Preferred Stock remain outstanding, the Company shall not close its Common Stock
transfer books. The issuance of certificates for shares of Common Stock upon the
conversion of shares of Series D Preferred Stock shall be made without charge to
the holder for any tax in respect of the issuance of such certificates (other
than any transfer, withholding or other tax if the shares of Common Stock are to
be registered in a name different from that of the registered holder of Series D
Preferred Stock).

          d.   FRACTIONAL SHARES.  No fractional shares of Common Stock or scrip
               -----------------                                                
representing fractional shares of Common Stock shall be issued upon any
conversion of any shares of Series D Preferred Stock, but, in lieu thereof,
there shall be paid an amount in cash equal to the same fraction of the Market
Price of a whole share of Common Stock as of the Conversion Date.

          e.   RESERVATION OF SHARES.  The Company shall at all times reserve
               ---------------------                                         
and keep available out of its authorized but unissued shares of Common Stock,
solely for the purpose of effecting the conversion of shares of Series D
Preferred Stock, the full number of whole shares of Common Stock then
deliverable upon the conversion of all shares of Series D Preferred Stock then
outstanding.  The Company shall take at all times such corporate action as shall
be necessary in order that the Company may validly and legally issue fully paid
and non-assessable shares of Common Stock upon the conversion of shares of
Series D Preferred Stock in accordance with the provisions of this Section 6.

          f.   REGISTRATION.  If any shares of Common Stock to be reserved for
               ------------                                                   
the purpose of conversion of Series D Preferred Stock require registration or
listing with, or approval of, any governmental authority, stock exchange or
other regulatory body under any federal or state law or regulation or otherwise,
before such shares may be validly issued or delivered upon conversion, the
Company shall, in good faith and as expeditiously as possible, endeavor to
secure such registration, listing or approval, as the case may be.

          g.   SHARES VALIDLY ISSUED AND NON-ASSESSABLE.  All shares of Common
               ----------------------------------------                       
Stock that may be issued upon conversion of the Series D Preferred Stock shall
upon issuance by the Company be validly issued, fully paid and nonassessable and
free from all taxes, liens and charges with respect to the issuance thereof.

          h.   RETIREMENT OF SHARES.  Any shares of Series D Preferred Stock
               --------------------                                         
converted pursuant to the provisions of this Section 6 shall be retired and
given the status of authorized and unissued Preferred Stock, undesignated as to
series, subject to reissuance by the Company as shares of Preferred Stock of one
or more series, as may be determined from time to time by the Board.

     7.   CONVERSION PRICE.  As used herein, the "Conversion Price" shall
          ----------------                                               
initially be $6.00 per share of Common Stock, subject to adjustment as set forth
below.  No payment or adjustment 
<PAGE>
 
shall be made for any dividends on the Common Stock issuable in such conversion.
The Conversion Price shall be subject to adjustment from time to time as
follows:

          a.   COMMON STOCK ISSUED AT LESS THAN THE CONVERSION PRICE.  If the
               -----------------------------------------------------         
Company shall issue any Common Stock other than Excluded Stock (as hereinafter
defined) without consideration or for a consideration per share less than the
Conversion Price in effect immediately prior to such issuance, the Conversion
Price in effect immediately prior to each such issuance shall immediately be
reduced to the price determined by dividing (i) an amount equal to the sum of
(A) the number of shares of Common Stock outstanding immediately prior to such
issuance multiplied by the Conversion Price in effect immediately prior to such
issuance and (B) the consideration, if any, received by the Company upon such
issuance, by (ii) the total number of shares of Common Stock outstanding
immediately after such issuance.  For the purposes of any adjustment of the
Conversion Price pursuant to this Section 7(a), the following provisions shall
be applicable:

               (1) Cash.  In the case of the issuance of Common Stock for cash,
                   ----                                                        
     the amount of the consideration received by the Company shall be deemed to
     be the amount of the cash proceeds received by the Company for such Common
     Stock before deducting therefrom any discounts, commissions, taxes or other
     expenses allowed, paid or incurred by the Company for any underwriting or
     otherwise in connection with the issuance and sale thereof.

               (2) Consideration Other Than Cash.  In the case of the issuance
                   -----------------------------                              
     of Common Stock (otherwise than upon the conversion of shares of capital
     stock or other securities of the Company) for a consideration in whole or
     in part other than cash, including securities acquired in exchange therefor
     (other than securities by their terms so exchangeable), the consideration
     other than cash shall be deemed to be the fair value thereof as determined
     by the Board; provided that such fair value as determined by the Board
     shall not exceed the aggregate Market Price of the shares of Common Stock
     being issued as of the date the Board authorizes the issuance of such
     shares.

               (3) Options and Convertible Securities.  In the case of the
                   ----------------------------------                     
     issuance of (i) options, warrants or other rights to purchase or acquire
     Common Stock (whether or not at the time exercisable), (ii) securities by
     their terms convertible into or exchangeable for Common Stock (whether or
     not at the time so convertible or exchangeable) or (iii) options, warrants
     or rights to purchase such convertible or exchangeable securities (whether
     or not at the time exercisable):

                 (A) the aggregate maximum number of shares of Common Stock
                 deliverable upon exercise of such options, warrants or other
                 rights to purchase or acquire Common Stock shall be deemed to
                 have been issued at the time such options, warrants or rights
                 were issued and for a consideration equal to the consideration
                 (determined in the manner provided in subsections (1) and (2)
                 above), if any, received by the Company upon the issuance of
                 such options, warrants or rights plus the 
<PAGE>
 
                 minimum purchase price provided in such options, warrants or
                 rights for the Common Stock covered thereby;

                 (B) the aggregate maximum number of shares of Common Stock
                 deliverable upon conversion of or in exchange for any such
                 convertible or exchangeable securities, or upon the exercise of
                 options, warrants or other rights to purchase or acquire such
                 convertible or exchangeable securities and the subsequent
                 conversion or exchange thereof, shall be deemed to have been
                 issued at the time such securities were issued or such options,
                 warrants or rights were issued and for a consideration equal to
                 the consideration, if any, received by the Company for any such
                 securities and related options, warrants or rights (excluding
                 any cash received on account of accrued interest or accrued
                 dividends), plus the additional consideration (determined in
                 the manner provided in subsections (1) and (2) above), if any,
                 to be received by the Company upon the conversion or exchange
                 of such securities, or upon the exercise of any related
                 options, warrants or rights to purchase or acquire such
                 convertible or exchangeable securities and the subsequent
                 conversion or exchange thereof;

                 (C) on any change in the number of shares of Common Stock
                 deliverable upon exercise of any such options, warrants or
                 rights or conversion or exchange of such convertible or
                 exchangeable securities or any change in the consideration to
                 be received by the Company upon such exercise, conversion or
                 exchange, including, but not limited to, a change resulting
                 from the anti-dilution provisions thereof, the Conversion Price
                 as then in effect shall forthwith be readjusted to such
                 Conversion Price as would have been obtained had an adjustment
                 been made upon the issuance of such options, warrants or rights
                 not exercised prior to such change, or of such convertible or
                 exchangeable securities not converted or exchanged prior to
                 such change, upon the basis of such change;

                 (D) on the expiration or cancellation of any such options,
                 warrants or rights, or the termination of the right to convert
                 or exchange such convertible or exchangeable securities, if the
                 Conversion Price shall have been adjusted upon the issuance
                 thereof, the Conversion Price shall forthwith be readjusted to
                 such Conversion Price as would have been obtained had an
                 adjustment been made upon the issuance of such options,
                 warrants, rights or such convertible or exchangeable securities
                 on the basis of the issuance of only the number of shares of
                 Common Stock actually issued upon the exercise of such options,
                 warrants or rights, or upon the conversion or exchange of such
                 convertible or exchangeable securities, if any; and
<PAGE>
 
                 (E) if the Conversion Price shall have been adjusted upon the
                 issuance of any such options, warrants, rights or convertible
                 or exchangeable securities, no further adjustment of the
                 Conversion Price shall be made for the actual issuance of
                 Common Stock upon the exercise, conversion, or exchange
                 thereof;

     provided, however, that no increase in the Conversion Price shall be made
     pursuant to subsections (A) or (B) of this subsection (3).

          b.   EXCLUDED STOCK.  For purposes of Section 7(a), "Excluded Stock"
               --------------                                                 
shall mean (i) shares of Common Stock issued or reserved for issuance by the
Company as a stock dividend payable in shares of Common Stock, or upon any
subdivision or split up of the outstanding shares of Common Stock or Series D
Preferred Stock, or upon conversion of shares of the Series D Preferred Stock,
(ii) under options and warrants outstanding on the date hereof, (iii) 750,000
shares of Common Stock reserved for issuance to key employees and directors of
the Company pursuant to the Company's employee stock option plan in effect as of
the date hereof; (iv) shares of Series E Preferred Stock and shares of Common
Stock issuable upon the conversion thereof, and (v) 77,520 shares of Common
Stock issuable upon the conversion of the shares of Series C Convertible
Preferred Stock outstanding on the date hereof.

          c.   STOCK DIVIDENDS, SUBDIVISIONS, RECLASSIFICATIONS OR COMBINATIONS.
               ----------------------------------------------------------------
If the Company shall (i) declare a dividend or make a distribution on its Common
Stock in shares of its Common Stock, (ii) subdivide or reclassify the
outstanding shares of Common Stock into a greater number of shares, or (iii)
combine or reclassify the outstanding Common Stock into a smaller number of
shares, the Conversion Price in effect at the time of the record date for such
dividend or distribution or the effective date of such subdivision, combination
or reclassification shall be proportionately adjusted so that the holder of any
shares of Series D Preferred Stock surrendered for conversion after such date
shall be entitled to receive the number of shares of Common Stock which he would
have owned or been entitled to receive had such shares of Series D Preferred
Stock been converted immediately prior to such date.  Successive adjustments in
the Conversion Price shall be made whenever any event specified above shall
occur.

          d.   OTHER DISTRIBUTIONS.  In case the Company shall fix a record date
               -------------------                                              
for the making of a distribution to all holders of shares of its Common Stock
(i) of shares of any class other than its Common Stock, (ii) of evidence of
indebtedness of the Company or any subsidiary of the Company, (iii) of assets,
or (iv) of rights or warrants, in each such case the Conversion Price in effect
immediately prior thereto shall be reduced immediately thereafter to the price
determined by dividing (1) an amount equal to the difference resulting from (A)
the number of shares of Common Stock outstanding on such record date multiplied
by the Conversion Price per share on such record date, less (B) the fair market
value (as determined by the Board) of said shares or evidences of indebtedness
or assets or rights or warrants to be so distributed, by (2) the number of
shares of Common Stock outstanding on such record date; provided, however, that,
                                                        --------  -------       
so long as there are no Accumulated Dividends on the Series D Preferred Stock or
the Series E Preferred Stock then outstanding for any previous Dividend Payment
Date, the provisions of this Section 7(d) shall not apply to distributions
consisting of cash dividends on the shares of Common Stock up to an amount equal
to 50% of consolidated net income of the Company and its 
<PAGE>
 
Majority-Owned Subsidiaries as of the calendar year immediately preceding the
proposed record date for such dividend. Any adjustment provided for by this
Section 7(d) shall be made successively whenever such a record date is fixed.

          e.   CONSOLIDATION, MERGER, SALE, LEASE OR CONVEYANCE.  In case of any
               ------------------------------------------------                 
consolidation with or merger of the Company with or into another corporation or
other entity, or in case of any sale, lease or conveyance to another entity of
the assets of the Company as an entirety or substantially as an entirety, each
share of Series D Preferred Stock shall after the date of such consolidation,
merger, sale, lease or conveyance be convertible into the number of shares of
stock or other securities or property (including cash) to which the Common Stock
issuable (at the time of such consolidation, merger, sale, lease or conveyance)
upon conversion of such share of Series D Preferred Stock would have been
entitled upon such consolidation, merger, sale, lease or conveyance; and in any
such case, if necessary, the provisions set forth herein with respect to the
rights and interests thereafter of the holders of the shares of Series D
Preferred Stock shall be appropriately adjusted so as to be applicable, as
nearly as may reasonably be, to any shares of stock or other securities or
property thereafter deliverable on the conversion of the shares of Series D
Preferred Stock.  Nothing in this Section 7(e) shall be construed in any way to
derogate from the right of the holders of the Series D Preferred Stock to
require the Company to repurchase their shares at the Change in Control
Repurchase Price upon a Change in Control, as set forth in Section 8(c) hereof.

          f.   NOTICE TO HOLDERS.  In the event the Company shall propose to
               -----------------                                            
take any action of the type described in subsections (a), (c), (d), and (e) of
this Section 7, the Company shall give notice to each holder of shares of Series
D Preferred Stock, which notice shall specify the record date, if any, with
respect to any such action and the approximate date on which such action is to
take place. Such notice shall also set forth such facts with respect thereto as
shall be reasonably necessary to indicate the effect of such action on the
Conversion Price and the number, kind or class of shares or other securities or
property which shall be deliverable upon conversion of shares of Series D
Preferred Stock. In the case of any action which would require the fixing of a
record date, such notice shall be given at least 10 days prior to the date so
fixed, and in the case of all other action, such notice shall be given at least
15 days prior to the taking of such proposed action.

          g.   STATEMENT REGARDING ADJUSTMENTS.  Upon the occurrence of each
               -------------------------------                              
adjustment or readjustment of the Conversion Price of the Series D Preferred
Stock pursuant to this Section 7, the Company shall compute such adjustment or
readjustment in accordance with the terms hereof and prepare and furnish to each
holder a certificate setting forth such adjustment or readjustment and showing
in detail the facts upon which such adjustment or readjustment is based.  Each
such statement shall be signed by the Company's public accountants.

          h.   TREASURY STOCK.  For the purposes of this Section 7, the sale or
               --------------                                                  
other disposition of any Common Stock theretofore held in the Company's treasury
shall be deemed to be an issuance thereof.


          i.   GOOD FAITH.  The Company shall not, by amendment of its
               ----------                                             
Certificate of Incorporation or through any reorganization, transfer of assets,
consolidation, merger, dissolution, 
<PAGE>
 
issuance or sale of securities or any other voluntary action, avoid or seek to
avoid the observance or performance of any of the terms to be observed or
performed hereunder by the Company, but shall at all times in good faith assist
in the carrying out of all the provisions of this Section 7 and in the taking of
all such action as may be necessary or appropriate in order to protect the
conversion rights of the holders of the shares of Series D Preferred Stock
shares against impairment of any kind.

     8.   VOTING RIGHTS; PROTECTIVE PROVISIONS; CHANGE OF CONTROL; SPECIAL
          ----------------------------------------------------------------
REPURCHASE EVENTS.
- ------------------

          a.   GENERAL.  Except as specifically set forth in the DGCL or
               -------                                                  
provided in the balance of this Section 8, the holders of shares of Series D
Preferred Stock shall not be entitled to any voting rights with respect to any
matters voted upon by stockholders.

          b.   PROTECTIVE PROVISIONS.  So long as any shares of Series D
               ---------------------                                    
Preferred Stock are outstanding, the written consent or the affirmative vote at
a meeting called for that purpose of the holders of a majority of the shares of
Series D Preferred Stock then outstanding, voting separately as a class, shall
be necessary to validate or effectuate any of the following: (i) amend, repeal,
alter or change any of the rights, preferences or privileges of the shares of
Series D Preferred Stock; (ii) create (by reclassification of an existing class
or series, or otherwise) any new class or series of shares of the Company's
capital stock, except for classes or series of shares ranking, with respect to
dividend rights and rights on any Liquidation Event, junior to the Series D
Preferred Stock and the Series E Preferred Stock; (iii) issue any shares of the
Company's capital stock, except for classes or series of shares ranking, with
respect to dividend rights and rights on any Liquidation Event, junior to the
Series D Preferred Stock and the Series E Preferred Stock; or (iv) take any
action that materially and adversely affects the legal rights, preferences or
privileges of the shares of Series D Preferred Stock.  At any time when there
are any Accumulated Dividends or any Change in Control Special Dividend A
accrued but unpaid for any reason, the holders of a majority of the shares of
Series D Preferred Stock then outstanding, voting separately as a class, shall
be necessary to validate or effectuate (i) any acquisition by the Company of all
or substantially all of the assets of another Person, (ii) any acquisition by
the Company of all or substantially all of the equity interests in any Person,
and (iii) any merger or recapitalization transaction to which the Company is a
party.

          c.   HOLDER'S ELECTION UPON CHANGE OF CONTROL.
               ---------------------------------------- 

               (1) Generally.  In the event of any Change in Control, each
                   ---------                                              
     holder of shares of Series D Preferred Stock shall have the right, at such
     holder's election as set forth below, to receive in respect of each share
     owned by such holder a sum equal to (i) the then applicable Face Value,
     plus (ii) Accumulated Dividends, plus (iii) a "Change of Control Special
     ----                             ----                                   
     Dividend A" equal to 18% of the then applicable Face Value.

               (2) Company's Notification Obligation.
                   --------------------------------- 

          (A) The Company shall notify each holder of shares of Series D
          Preferred Stock in writing within 15 days before any Change in Control
          pursuant to a 
<PAGE>
 
          transaction to which the Company is a party (a "Company Change of
          Control Transaction") setting forth a description of the nature of the
          Change in Control and the date at which such Change in Control is
          anticipated to take place.

          (B) The Company shall notify each holder of shares of Series D
          Preferred Stock in writing as soon as the Company has Knowledge of any
          Change of Control pursuant to a transaction that is not a Company
          Change of Control Transaction (an "Other Change of Control
          Transaction") setting forth a description of the nature of the Change
          in Control and the date at which such Change in Control took place or
          is anticipated to take place.

          (C) The notices described in clauses (A) and (B) above are
          collectively denominated "Change in Control Notices".

               (3) Holder's Election.  Within five (5) days after receipt of the
                   -----------------                                            
     Change of Control Notice, each holder shall notify the Company in writing
     whether or not such holder will require such holder's shares of Series D
     Preferred Stock to be redeemed by the Company pursuant to this Section.  If
     a holder does not timely notify the Company in writing pursuant to the
     previous sentence, such holder will be deemed to have waived its right to
     require such holder's shares of Series D Preferred Stock to be redeemed by
     the Company pursuant to this Section; provided, however, that such waiver
     shall only apply to the Change of Control relating to the relevant Change
     of Control Notice, and not any subsequent Change of Control or Change of
     Control Notice.

               (4) Company Change of Control.  The Company shall redeem the
                   -------------------------                               
     shares of each holder of Series D Preferred Stock so electing such a
     redemption in connection with a Company Change of Control Transaction by
     making cash payments to such holder in respect of each share owned by such
     holder as follows: (i) a sum equal to the then applicable Face Value plus
                                                                          ----
     Accumulated Dividends on or prior to the date of the Company Change in
     Control Transaction as a condition precedent to the effectiveness of such
     Company Change in Control Transaction, and (ii) a sum equal to the Change
     in Control Special Dividend A as soon as funds are legally available for
     payment thereof after the date of the Company Change in Control
     Transaction.  Any Company Change of Control Transaction shall be void and
     of no force and effect if the payments set forth in clause (i) of this
     Section 8(c)(4) are not made on or prior to the date of such Company Change
     in Control Transaction.

               (5) Other Changes of Control.  The Company shall redeem the
                   ------------------------                               
     shares of each holder of Series D Preferred Stock so electing such a
     redemption in connection with an Other Change of Control Transaction as
     promptly as practicable after receipt of such holder's notice of such
     election by making cash payments to such holder in respect of each share
     owned by such holder as follows: (i) a sum equal to the then applicable
     Face Value plus Accumulated Dividends plus a sum equal to the Change in
                ----                                                        
     Control Special Dividend A as soon as funds are legally available for
     payment thereof after the date of the Other Change in Control Transaction.
<PAGE>
 
          d.   SPECIAL REPURCHASE EVENTS.
               ------------------------- 

               (1) Representations.  The Company represents and warrants to each
                   ---------------                                              
     holder of shares of Series D Preferred Stock as follows:

          (A) Except as otherwise disclosed in the Disclosure Schedule to the
          Stock Purchase Agreement (as such term is defined therein), neither
          the Company nor any of its Affiliates since inception has provided any
          research, educational or study grants or other financial support of
          any kind to any hospital, physician, or health care provider.

          (B) Neither the Company nor any of its Affiliates since inception has
          received notice that the Company or any Subsidiary has been, or to the
          Company's knowledge has been, the subject of any investigative
          proceeding before any federal or state regulatory authority or the
          agent of any such authority, including without limitation federal and
          state health authorities.

          (C) Neither the Company nor any Affiliate, nor the officers,
          directors, employees or agents of any of the Company or any Affiliate,
          and none of the Persons who provide professional services under
          agreements with any of the Company or any Affiliate as agents of such
          entities have engaged in any activities which are prohibited, or are
          cause for civil penalties or mandatory or permissive exclusion from
          Medicare or Medicaid, under (S)(S) 1320a-7, 1320a-7a, 1320a-7b, or
          1395nn of Title 42 of the United States Code, the federal Civilian
          Health and Medical Plan of the Uniformed Services statute ("CHAMPUS"),
          or the regulations promulgated pursuant to such statutes or
          regulations or related state or local statutes or which are prohibited
          by any private accrediting organization from which the Company or any
          of its Affiliates seeks accreditation or by generally recognized
          professional standards of care or conduct, including but not limited
          to the following activities:

               (a) knowingly and willfully making or causing to be made a false
          statement or representation of a material fact in any application for
          any benefit or payment;

               (b) knowingly and willfully making or causing to be made any
          false statement or representation of a material fact for use in
          determining rights to any benefit or payment;

               (c) presenting or causing to be presented a claim for
          reimbursement under CHAMPUS, Medicare, Medicaid or any other State
          Health Care Program or Federal Health Care Program that is (i) for an
          item or service that the Person presenting or causing to be presented
          knows or should know was not provided as claimed, or (ii) for an item
          or service and the Person presenting knows or should know that the
          claim is false or fraudulent;
<PAGE>
 
               (d) knowingly and willfully offering, paying, soliciting or
          receiving any remuneration (including any kickback, bribe or rebate),
          directly or indirectly, overtly or covertly, in cash or in kind (i) in
          return for referring, or to induce the referral of, an individual to a
          Person for the furnishing or arranging for the furnishing of any item
          or service for which payment may be made in whole or in part by
          CHAMPUS, Medicare or Medicaid, or any other State Health Care Program
          or any Federal Health Care Program, or (iii) in return for, or to
          induce, the purchase, lease, or order, or the arranging for or
          recommending of the purchase, lease, or order, of any good, facility,
          service, or item for which payment may be made in whole or in party by
          CHAMPUS, Medicare or Medicaid or any other State Health Care Program
          or any Federal Health Care Program; or

               (e) knowingly and willfully making or causing to be made or
          inducing or seeking to induce the making of any false statement or
          representation (or omitting to state a material fact required to be
          stated therein or necessary to make the statements contained therein
          not misleading) or a material fact with respect to (i) the conditions
          or operations of a facility in order that the facility may qualify for
          CHAMPUS, Medicare, Medicaid or any other State Health Care Program
          certification or any Federal Health Care Program certification, or
          (ii) information required to be provided under (S) 1124(A) of the
          Social Security Act ("SSA") (42 U.S.C. (S) 1320a-3).

          (D) Neither the Company nor any other Person who after the Issue Date
          will have a direct or indirect ownership interest (as those terms are
          defined in 42 C.F.R. (S) 1001.1001(a)(2)) in the Company or any
          Affiliate of 5% or more (other than General Electric Company, a New
          York corporation ("General Electric")), or who will have an ownership
          or control interest (as defined in SSA (S) 1124(a)(3), or any
          regulations promulgated thereunder) in the Company or any Affiliate
          (other than General Electric), or who will be an officer, director,
          agent (as defined in 42 C.F.R. (S) 1001.1001(a)(2)), or managing
          employee (as defined in SSA (S) 1126(b) or any regulations promulgated
          thereunder) of the Company or any Affiliate and (ii) to the best
          Knowledge of the Company and any Affiliate, no Person or entity with
          any relationship with such entity (including without limitation a
          parent company or shareholder of, or partner in an Affiliate) who
          after the Issue Date will have an indirect ownership interest (as that
          term is defined in 42 C.F.R. (S) 1001.1001(a)(2)) in the Company or
          any Affiliate of 5% or more (other than General Electric): (1) has had
          a civil monetary penalty assessed against it under (S) 1128A of the
          SSA or any regulations promulgated thereunder; (2) has been excluded
          from participation under the Medicare program or a state health care
          program as defined in SSA (S) 1128(h) or any regulations promulgated
          thereunder ("State Health Care Program") or a federal health care
          program as defined in SSA (S) 1128B(f) ("Federal Health Care
          Program"); or (3) has been convicted (as that term is defined in 42
          C.F.R. (S) 1001.2) of any of the following categories of offenses as
          described in SSA (S) 1128(a) and (b)(1), (2), (3) or any regulations
          promulgated thereunder:
<PAGE>
 
               (a) criminal offenses relating to the delivery of an item or
          service under Medicare or any State Health Care Program or any Federal
          Health Care Program;

               (b) criminal offenses under federal or state law relating to
          patient neglect or abuse in connection with the delivery of a health
          care item or service;

               (c) criminal offenses under federal or state law relating to
          fraud, theft, embezzlement, breach of fiduciary responsibility, or
          other financial misconduct in connection with the delivery of a health
          care item or service or with respect to any act or omission in a
          program operated by or financed in whole or in part by any federal,
          state or local governmental agency;

               (d) federal or state laws relating to the interference with or
          obstruction of any investigation into any criminal offense described
          in (a) through (c) above; or

               (e) criminal offenses under federal or state law relating to the
          unlawful manufacture, distribution, prescription or dispensing of a
          controlled substance.

               (2) Covenants.  The Company covenants that as long as any shares
                   ---------                                                   
     of Series D Preferred Stock are outstanding:

 

          (A) The operations of the Company and its Affiliates will be conducted
          in accordance with all Applicable Laws, including, without limitation,
          all such laws, regulations, orders and requirements promulgated by any
          Governmental Authority or relating to consumer protection, equal
          opportunity, health care industry regulation, third party
          reimbursement (including Medicare and Medicaid), environmental
          protection, fire, zoning and building and occupational safety matters,
          except for violations that individually or in the aggregate would not
          and, insofar as may reasonably be foreseen, in the future will not,
          have a Material Adverse Effect on the Company or any Subsidiary.

          (B) Without limiting the generality of the foregoing, the operations
          of the Company and its Affiliates will be conducted in accordance with
          all laws, regulations, orders and requirements relating to health care
          industry regulation and third party reimbursement (including Medicare
          and Medicaid).

          (C) Without limiting the generality of the foregoing, the Company and
          all Affiliates shall comply in all material respects with all
          directives, orders, instructions, bulletins and other announcements
          received from third party payors and their agents (including without
          limitation Medicare carriers and fiscal intermediaries) regarding
          participation in third party payment programs, and including without
          limitation preparation and submission of claims for reimbursement.
          Nothing in this Section 8(d)(2)(C) shall be construed as or is
          intended to create any third party beneficiaries.
<PAGE>
 
               (3) Special Repurchase Events.  The failure of any representation
                   -------------------------                                    
     or warranty of the Company contained in Section 8(d)((1) to be true on the
     Issue Date in any material respect, or the Company's breach of any of the
     covenants set forth in Section 8(d)(2), shall be a "Special Repurchase
     Event".  Upon any Special Repurchase Event, each holder of shares of Series
     D Preferred Stock shall have the right, at such holder's election as set
     forth below, to receive in respect of each share owned by such holder a sum
     equal to (i) the then applicable Face Value, plus (ii) Accumulated
                                                  ----                 
     Dividends.

          (A) The Company shall notify each holder of Series D Preferred Stock
          in writing as soon as commercially practicable upon the occurrence of
          any Special Repurchase Event (a "Company Special Repurchase Event
          Notice"), and each holder may notify the Company in writing within 30
          days after such holder has actual knowledge of the occurrence of any
          Special Repurchase Event (a "Holder Special Repurchase Event Notice").
          Upon receipt of a Holder Special Repurchase Event Notice, the Company
          shall send copies of such Holder Special Repurchase Event Notice to
          all other holders, if any, of shares of Series D Preferred Stock.  A
          Company Special Repurchase Event Notice or a Holder Special Repurchase
          Event Notice shall be denominated herein a "Special Repurchase Event
          Notice".

          (B) Within ten (10) days after receipt of any Special Repurchase Event
          Notice (or a copy thereof), each holder shall send a written notice to
          the Company either electing to have such holder's shares repurchased
          pursuant to the provisions of this Section 8(d) or declining to so
          elect (the "Special Repurchase Event Election").  Within 10 days after
          receipt of each holder's Special Repurchase Event Election, the
          Company shall repurchase each share of Series D Preferred Stock of
          each such holder electing to have such holder's shares repurchased
          pursuant to the provisions of this Section 8(d) at a price per share
          equal to the Face Amount per share plus Accumulated Dividends.

          (4) Cumulative Remedies.  The remedies provided to the holders of the
              -------------------                                              
     shares of Series D Preferred Stock set forth in this Section 8(d) with
     respect to any misrepresentation or breach of covenant contained herein
     shall be without prejudice to any other remedies of such holders for such
     misrepresentation or breach, including without limitation (in the case of
     General Electric) any remedies of General Electric under the Stock Purchase
     Agreement.

     9.   REDEMPTION.
          ---------- 

          a.   OPTIONAL REDEMPTION.  The Company may at any time from and after
               -------------------                                             
January 1, 2007, and from time to time thereafter, redeem out of funds legally
available therefor all of the shares of Series D Preferred Stock at its election
expressed by resolution of the Board, upon not less than thirty (30) days' prior
notice to the holders of record of the Series D Preferred Stock to be redeemed,
given by mail, at the Redemption Price (as hereinafter defined) on the
Redemption Date (as hereinafter defined).  The Company shall not redeem less
than all the outstanding shares of Series D Preferred Stock under this Section
9(a).
<PAGE>
 
          b.   COMPANY'S ELECTION UPON CHANGE IN CONTROL.  In the event of any
               -----------------------------------------                      
Change in Control, the Company may redeem out of funds legally available
therefor all of the shares of Series D Preferred Stock at its election expressed
by resolution of the Board upon not less than thirty (30) days' prior notice to
the holders of record of the Series D Preferred Stock to be redeemed, given by
mail. Upon such resolution of the Board, each holder of shares of Series D
Preferred Stock shall have the right to receive on the Redemption Date (as
defined below) in respect of each share owned by such holder a sum equal to (i)
the then applicable Face Value, plus (ii) Accumulated Dividends, plus (iii) a
                                ----                             ----        
"Change of Control Special Dividend B" equal to 23% of the then applicable Face
Value. The Company shall not redeem less than all of the outstanding shares of
Series D Preferred Stock under this Section 9(b).

          c.   REDEMPTION DATE.  The "Redemption Date" shall be the date fixed
               ---------------                                                
for redemption in the notice of redemption under Sections 9(a) or 9(b) above.
The Redemption Date with respect to any Company Change in Control Transaction
shall be a date on or before the effective date of such Change in Control.

          d.   REDEMPTION PRICE.  The price at which outstanding shares of
               ----------------                                           
Series D Preferred Stock shall be redeemed pursuant to Section 9(a) shall be the
Face Amount per share, as then in effect, together with all Accumulated
Dividends on such shares to the Redemption Date (the "Redemption Price").

          e.   NOTICE OF REDEMPTION.  Each notice of redemption shall state (i)
               --------------------                                            
the Redemption Date, (ii) the number of shares of Series D Preferred Stock to be
redeemed, (iii) as the case may be, pursuant to Sections 9(a) and 9(b) above,
either (x) the Redemption Price or (y) the sum equal to (A) the then applicable
Face Value, plus (B) Accumulated Dividends, plus (C) the Change of Control
            ----                            ----                          
Special Dividend B equal to 23% of the then applicable Face Value applicable to
the shares to be redeemed, (iv) the place or places where such shares are to be
surrendered, and (v) that dividends on shares to be redeemed will cease to
accrue on the Redemption Date.  No defect in any such notice to any holder of
Series D Preferred Stock shall affect the validity of the proceedings for the
redemption of any other shares of such Series D Preferred Stock.

          f.   RETIREMENT OF SHARES.  Any shares of Series D Preferred Stock
               --------------------                                         
redeemed pursuant to the provisions of this Section 9 shall be retired and given
the status of authorized and unissued Preferred Stock, undesignated as to
series, subject to reissuance by the Company as shares of Preferred Stock of one
or more series, as may be determined from time to time by the Board.

          g.   CONDITION PRECEDENT TO CHANGE IN CONTROL.  If the Company fails
               ----------------------------------------                       
to pay all amounts payable to the holders of shares of Series D Preferred Stock
due in respect of a redemption pursuant to Section 9(b) hereof prior on or prior
to the Redemption Date, any related Company Change of Control Transaction shall
be void and of no force and effect.

          h.   RESTRICTIONS ON REDEMPTIONS.  No shares of Series D Preferred
               ---------------------------                                  
Stock shall be redeemed under this Section 9:  (i) at any time that such
redemption is prohibited by the DGCL; or (ii) at any time that the terms and
provisions of any contract or other agreement of the 
<PAGE>
 
Company in effect as of the Issue Date providing financing or working capital to
the Company specifically prohibits such redemption or provides that such
redemption would constitute a breach thereof or a default thereunder.

     10.  NO SINKING FUND.  No sinking fund shall be established for the
          ---------------                                               
retirement or redemption of shares of Series D Preferred Stock.

     11.  PREEMPTIVE OR SUBSCRIPTION RIGHTS.  No holder of shares of Series D
          ---------------------------------                                  
Preferred Stock shall have any preemptive or subscription rights in respect of
any securities of the Company that may be issued.

     12.  NO OTHER RIGHTS.  The shares of Series D Preferred Stock shall not
          ---------------                                                   
have any designations, preferences or relative, participating, optional or other
special rights except as expressly set forth in the Company's Certificate of
Incorporation, this Certificate or as otherwise required by law.
<PAGE>
 
     RESOLVED, FURTHER, that the Secretary of the Company be, and he hereby is,
authorized, empowered and directed to execute an Amended Certificate of
Designation, Preferences and Rights of Series D Preferred Stock and that such
Certificate be delivered to and filed with the Secretary of State of the State
of Delaware pursuant to the provisions of Section 103 and Section 151(g) of the
DGCL, both as amended.

     IN WITNESS WHEREOF, Alliance Imaging, Inc. has caused this Certificate of
Designation to be executed by its Secretary as of March 25, 1997.

 

                              ALLIANCE IMAGING, INC.



                              By:____________________________________
                                 Terrence M. White,
                                  Secretary

<PAGE>
 
                                                                       EXHIBIT 5

                                                                  EXECUTION COPY

                            ALLIANCE IMAGING, INC.
                                        
          AMENDED CERTIFICATE OF DESIGNATION, PREFERENCES AND RIGHTS
                     OF SERIES E 4% CUMULATIVE REDEEMABLE
                          CONVERTIBLE PREFERRED STOCK

            (Pursuant to Section 151(g) of the General Corporation
                        Law of the State of Delaware.)

                                        

     Alliance Imaging, Inc., a corporation organized and existing under the laws
of the State of Delaware (hereinafter the "Company"), DOES HEREBY CERTIFY THAT,
pursuant to authority conferred upon the Board of Directors of the Company (the
"Board") by the Restated Certificate of Incorporation of the Company, as amended
(the "Certificate of Incorporation"), the Board, pursuant to a unanimous written
consent dated as of March 25, 1997, adopted the following resolutions
authorizing the issuance of Series E 4% Cumulative Redeemable Convertible
Preferred Stock of the Company, which resolutions are still in full force and
effect and are not in conflict with any provisions of the Certificate of
Incorporation or Bylaws of the Company:

     RESOLVED, that pursuant to authority vested in the Board by the Certificate
of Incorporation, the Board does hereby establish a series of Preferred Stock of
the Company from the Company's authorized class of 1,000,000 shares of $0.01 par
value preferred shares, such series to consist of 9,000 shares, which number may
be decreased (but not below the number of shares thereof then outstanding) from
time to time by the Board, and to the extent that the voting rights,
designation, powers, preferences and relative participating, optional or other
special rights and the qualifications, limitations or restrictions of that
series are not stated and expressed in the Certificate of Incorporation, does
hereby fix and state the voting rights, designation, powers, preferences and
relative participating, optional or other special rights and the qualifications,
limitations or restrictions thereof, as follows:

     1.   Definitions.  Unless otherwise specified herein, the following
          -----------                                                   
capitalized terms shall have the meanings ascribed to them below:

          Accumulated Dividends.  "Accumulated Dividends" shall have the meaning
          ---------------------                                                 
set forth in Section 4(d).

          Affiliate.  "Affiliate" shall mean, with respect to any Person, any
          ---------                                                          
other Person which directly or indirectly controls or is controlled by or is
under common control with such Person, and, with respect to the Company only,
includes any other Person with whom the Company has any joint venture,
partnership, or other shared investment interest.  As used in this definition,
"control" (including its correlative meanings, "controlled by" and "under common
control with") shall mean possession, directly or indirectly, of power to (i)
direct or cause the direction of management or policies of such Person (whether
through ownership of securities or 
<PAGE>
 
partnership or other ownership interests, by contract or otherwise) or (ii) vote
10% or more of the securities having ordinary voting power for the election of
directors of such Person.

          Applicable Law.  "Applicable Law" shall mean, with respect to any
          --------------                                                   
Person, any federal, state or local statute, law, ordinance, rule,
administrative interpretation, regulation, order, writ, injunction, directive,
judgment, decree or other requirement of any Governmental Authority applicable
to such Person or any of its Affiliates or any of their respective properties,
assets, officers, directors, employees, consultants or agents.

          Available Assets.  "Available Assets" shall have the meaning set forth
          ----------------                                                      
in Section 5(a).

          Average Market Price.  The "Average Market Price" of a share of Common
          --------------------                                                  
Stock at any date shall mean the average of the daily closing prices per share
of Common Stock for fifteen (15) consecutive trading days ending on the trading
day immediately preceding such date (as adjusted for any stock dividend, split,
combination or reclassification that took effect during such 15 day period).
The closing price for each trading day shall mean (i) the closing sales price on
such trading day of a share of Common Stock on the principal national securities
exchange or automated quotation system on which the shares of Common Stock are
listed or admitted to trading or, if not listed or admitted to trading on any
national securities exchange or automated quotation system, the average of the
last reported bid and asked prices on such trading day in the over-the-counter
market as furnished by the National Association of Securities Dealers, Inc., or,
if such firm is not then engaged in the business of reporting such prices, as
furnished by any similar firm then engaged in such business selected in good
faith by the Company or, if there is no such firm, as furnished by any member of
the National Association of Securities Dealers, Inc., selected in good faith by
the Company, or (ii) if the shares of Common Stock are not then traded on any
such exchange or system, the amount determined in good faith by the Board to
represent the fair value of a share of Common Stock.

          Base Conversion Price.  "Base Conversion Price" shall have the meaning
          ---------------------                                                 
set forth in Section 7, as adjusted from time to time as set forth therein.

          Capital Lease.  "Capital Lease" shall mean any lease by a Person of
          -------------                                                      
any property (whether real, personal or mixed) which, in conformity with GAAP
(including Statement of Financial Accounting Standards No. 13 of the Financial
Accounting Standards Board), is accounted for as a capital lease on the balance
sheet of such person.

          Capital Lease Obligations.  "Capital Lease Obligations" shall mean, as
          -------------------------                                             
to any Person, the obligations of such Person to pay rent or other amounts under
a Capital Lease and, for purposes of this Certificate of Designation, the amount
of such obligations shall be the capitalized amount thereof, determined in
accordance with GAAP (including Statement of Financial Accounting Standards No.
13 of the Financial Accounting Standards Board).

          CHAMPUS.  "CHAMPUS" has the meaning set forth in Section 8(d)(1)(C).
          -------                                                             
<PAGE>
 
          Change in Control.   "Change in Control" shall be deemed to have
          -----------------                                               
occurred (i) at such time as any person (as defined in Section 13(d)(3) of the
Securities and Exchange Act of 1934) at any time shall directly or indirectly
acquire more than 40% of the voting power of the Common Stock of the Company,
(ii) at such time as during any one year period, individuals who at the
beginning of such period constitute the Company's Board cease to constitute at
least a majority of such Board, (iii) upon consummation of a merger or
consolidation of the Company into or with another corporation in which the
shareholders of the Company immediately prior to the consummation of such
transaction shall own less than Fifty Percent (50%) of the voting securities of
the surviving corporation (or the parent corporation of the surviving
corporation where the surviving corporation is wholly-owned by the parent
corporation) immediately following the consummation of such transaction or (iv)
the sale, transfer or lease (but not including a transfer or lease by pledge or
mortgage to a bona fide lender) of all or substantially all of the assets of the
Company, in any of cases (i), (ii), (iii) and (iv) in a single transaction or
series of transactions; provided, however, that no Change in Control shall be
                        -----------------                                    
deemed to have occurred solely as a result of General Electric Company, a New
York corporation, directly or indirectly acquiring more than 40% of the voting
power of the Common Stock of the Company.

          Change in Control Special Dividend A.  "Change in Control Special
          ------------------------------------                             
Dividend A" shall have the meaning set forth in Section 8(c)(1).

          Change in Control Special Dividend B.  "Change in Control Special
          ------------------------------------                             
Dividend B" shall have the meaning set forth in Section 9(b).

          Common Stock.  "Common Stock" shall mean the Company's Common Stock,
          ------------                                                        
$0.01 par value per share.

          Company Change in Control Transaction.  "Company Change in Control
          -------------------------------------                             
Transaction" shall have the meaning set forth in Section 8(c)(2)(A).

          Company Special Repurchase Event Notice.  "Company Special Repurchase
          ---------------------------------------                              
Event Notice" shall have the meaning set forth in Section 8(d)(3)(A).

          Conversion Date.  "Conversion Date" shall have the meaning set forth
          ---------------                                                     
in Section 6(a).

          Conversion Price.  "Conversion Price" shall have the meaning set forth
          ----------------                                                      
in Section 7, as adjusted from time to time as set forth therein.

          DGCL.  "DGCL" shall mean the Delaware General Corporation Law.
          ----                                                          

          Dividend Payment Date.  "Dividend Payment Date" shall have the meaning
          ---------------------                                                 
set forth in Section 4(b).

          Dividend Period.  "Dividend Period" shall have the meaning set forth
          ---------------                                                     
in Section 4(b).
<PAGE>
 
          Excluded Stock.  "Excluded Stock" shall have the meaning set forth in
          --------------                                                       
Section 7(b).

          Face Amount.  The "Face Amount" of each share of Series E Preferred
          -----------                                                        
Stock (regardless of its par value) shall be One Thousand Dollars ($1,000.00),
as the Series E Preferred Stock is presently constituted, such amount to be
proportionately adjusted to reflect any combination, consolidation,
reclassification or like adjustment of or to the Series E Preferred Stock.

          Federal Health Care Program. "Federal Health Care Program" shall have
          ---------------------------                                          
the meaning set forth in Section 8(d)(1)(E).

          Funded Debt.  "Funded Debt" shall mean as applied to any Person, all
          -----------                                                         
Indebtedness of such Person, in a principal amount of at least One Million
Dollars ($1,000,000) in each instance, which by its terms or by the terms of any
instrument or agreement relating thereto matures, or which is otherwise payable
or unpaid, more than one year from, or is directly or indirectly renewable or
extendible at the option of the debtor to a date more than one year (including
an option of the debtor under a revolving credit or similar agreement obligating
the lender or lenders to extend credit over a period of more than one year) from
the date of the creation thereof; provided that "Funded Debt" shall include, as
                                  --------                                     
at any date of determination, any portion of such Funded Debt outstanding on
such date which matures on demand or within one year from such date (whether by
sinking fund, other required prepayment or final payment at maturity) and which
is not directly or indirectly renewable, extendible or refundable, at the option
of the debtor to a date more than one year from such date; provided, further,
                                                           --------  ------- 
that "Funded Debt" shall include all Indebtedness pursuant to that certain Note
Purchase Agreement dated as of April 14, 1989, as amended to and including the
Issue Date; and provided, further, that except with respect to Indebtedness
                --------  -------                                          
pursuant to that certain Note Purchase Agreement dated as of April 14, 1989, as
amended to and including the Issue Date, "Funded Debt" shall not include (i)
Indebtedness secured by equipment, trailers or modular buildings used in the
business of the Company or (ii) Indebtedness convertible into equity securities
of the Company on commercially reasonable terms.

          Funded Debt Default.  "Funded Debt Default" shall mean any date 30
          -------------------                                               
days after the Company shall have Knowledge that it is in default with respect
to any Funded Debt, unless during such 30 day period either (i) such default
shall have been waived by the lender with respect to such Funded Debt or (ii)
the agreement or agreements governing such Funded Debt shall have been amended
to eliminate such default, in either of cases (i) or (ii) without any economic
consideration (other than such consideration required by the terms of the
documentation with respect to such Funded Debt as in effect prior to any
amendment of such documentation described in clause (ii) above) provided to the
lender with respect to such Funded Debt by the Company.

          GAAP.  "GAAP" means generally accepted accounting principles.
          ----                                                         

          General Electric. "General Electric" shall have the meaning set forth
          ----------------                                                     
in Section 8(d)(1)(E).
<PAGE>
 
          Governmental Authority. "Governmental Authority" shall mean any
          ----------------------                                         
federal, territorial, state or local governmental authority, quasi-governmental
authority, instrumentality, court, government or self-regulatory organization,
commission, tribunal or organization or any regulatory, administrative or other
agency, or any political or other subdivision, department or branch of any of
the foregoing, in all such cases whether domestic or foreign.

          Holder Special Repurchase Event Notice.  "Holder Special Repurchase
          --------------------------------------                             
Event Notice" shall have the meaning set forth in Section 8(d)(3)(A).

          Indebtedness.  "Indebtedness" shall mean, as to any Person without
          ------------                                                      
duplication, (a) all items which, in accordance with GAAP, would be included as
a liability on the balance sheet of such Person and its Majority-Owned
Subsidiaries (including any obligation of such Person to the issuer of any
letter of credit for reimbursement in respect of any drafts drawn under such
letter of credit), excluding obligations in respect of deferred taxes and
deferred employee compensation and benefits, and anything in the nature of
capital stock, surplus capital and retained earnings; (b) the amount available
for drawing under all letters of credit issued for the account of such Person;
(c) obligations (whether or not such Person has assumed or become liable for the
payment of such obligation) secured by liens; (d) Capital Lease Obligations of
such Person; and (e) all guarantees of such Person, provided, however, that the
                                                    --------                   
term Indebtedness shall not include trade accounts payable (other than for
borrowed money) arising in, and accrued expenses incurred in, the ordinary
course of business of such Person, provided the same are not more than 45 days
                                   --------                                   
overdue or are being contested in good faith.

          Issue Date.  "Issue Date" shall mean, with respect to any shares of
          ----------                                                         
Series E Preferred Stock, the date such shares of Series E Preferred Stock are
issued.

          Junior Securities.  "Junior Securities" shall have the meaning set
          -----------------                                                 
forth in Section 3.

          Knowledge.  "Knowledge" or "knowledge," with respect to any Person,
          ---------                                                          
shall mean the actual knowledge of such Person, after reasonable inquiry.  For
purposes hereof, a Person shall be deemed to have actual knowledge of the
contents of all books and records with respect to which such Person has
reasonable access.  Without limiting the generality of the foregoing, with
respect to any Person that is a corporation, partnership or other business
entity, actual knowledge shall be deemed to include the actual knowledge of all
principal employees of any such Person (which, for purposes of the Company,
shall include without limitation Richard N. Zehner, Vincent S. Pino, Terrence M.
White, Jay A. Mericle, Terry A. Andrues, Neil M. Culinan, Ph.D., Cheryl A. Ford,
and Michael W. Grismer) as well as the Chief Executive Officer, President, Chief
Financial Officer and all Vice Presidents in the case of corporate Persons, and
general partners in the case of general or limited partnerships, as the case may
be.

          Liquidation Event.  "Liquidation Event" shall mean any of the
          -----------------                                            
following:  (i) a liquidation or winding up of the Company, (ii) a merger or
consolidation of the Company into or with another corporation in which the
shareholders of the Company immediately prior to the consummation of such
transaction shall own less than Fifty Percent (50%) of the voting securities of
the surviving corporation (or the parent corporation of the surviving
corporation where the 
<PAGE>
 
surviving corporation is wholly-owned by the parent corporation) immediately
following the consummation of such transaction, or (iii) the sale, transfer or
lease (but not including a transfer or lease by pledge or mortgage to a bona
fide lender) of all or substantially all of the assets of the Company; in any of
cases (i), (ii) or (iii) in a single transaction or series of transactions.

          Liquidation Preference Amount.  "Liquidation Preference Amount" shall
          -----------------------------                                        
have the meaning set forth in Section 5(a).

          Majority-Owned Subsidiary.  "Majority-Owned Subsidiary" means with
          -------------------------                                         
respect to any Person any Subsidiary of such Person of which at least a majority
of the outstanding shares, partnership interests or other equity interests
therein is at the time directly or indirectly owned or controlled by such Person
or any other Subsidiary which is a consolidated subsidiary of such Person under
GAAP or one or more of the Majority-Owned Subsidiaries of such Person or by such
Person and one or more of the Majority-Owned Subsidiaries of such Person.

          Market Price.  The "Market Price" of a share of Common Stock on or
          ------------                                                      
with respect to any day shall mean (i) the closing sales price on the
immediately preceding trading day of a share of Common Stock on the principal
national securities exchange or automated quotation system on which the shares
of Common Stock are listed or admitted to trading or, if not listed or admitted
to trading on any national securities exchange or automated quotation system,
the average of the last reported bid and asked prices on such immediately
preceding trading day in the over-the-counter market as furnished by the
National Association of Securities Dealers, Inc., or, if such firm is not then
engaged in the business of reporting such prices, as furnished by any similar
firm then engaged in such business selected in good faith by the Company or, if
there is no such firm, as furnished by any member of the National Association of
Securities Dealers, Inc., selected in good faith by the Company, or (ii) if the
shares of Common Stock are not then traded on any such exchange or system, the
amount determined in good faith by the Board to represent the fair value of a
share of Common Stock.

          Material Adverse Effect. "Material Adverse Effect" shall mean, with
          -----------------------                                            
respect to any Person or designated group of Persons, a change in, or effect on,
or group of such changes in or effects on, the operations, financial condition
or results of operations, prospects, assets or liabilities of the Person or
group of Persons, as the case may be, taken as a whole, that results in a
material adverse effect on, or a material adverse change in, the operations,
financial condition, results of operations, prospects, assets or liabilities of
the Person or group of Persons, as the case may be, taken as a whole, excluding
adverse changes in the general economy.

          Other Change in Control Transaction.  "Other Change in Control
          -----------------------------------                           
Transaction" shall have the meaning set forth in Section 8(c)(2)(B).

          Person.  "Person" shall mean any natural person, firm, corporation,
          ------                                                             
partnership, limited liability company, association, trust or other entity.

          Record Date.  "Record Date" shall have the meaning set forth in
          -----------                                                    
Section 4(c).
<PAGE>
 
          Redemption Date.  "Redemption Date" shall have the meaning set forth
          ---------------                                                     
in Section 9(c).

          Redemption Price.  "Redemption Price" shall have the meaning set forth
          ----------------                                                      
in Section 9(d).

          Regular Dividends.  "Regular Dividends" shall have the meaning set
          -----------------                                                 
forth in Section 4(a).

          Series D Preferred Stock.  "Series D Preferred Stock" shall mean the
          -------------------------                                           
Company's Series D 4% Cumulative Redeemable Convertible Preferred Stock
designated pursuant to the Certificate of Designation, Preferences and Rights of
Series D 4% Cumulative Redeemable Convertible Preferred Stock dated as of even
date herewith.

          Series E Preferred Stock.  "Series E Preferred Stock" shall have the
          ------------------------                                            
meaning set forth in Section 2.

          Special Dividend Event Trigger Date.  "Special Dividend Event Trigger
          -----------------------------------                                  
Date" shall have the meaning set forth in Section 4(b).

          Special Dividends.  "Special Dividends" shall have the meaning set
          -----------------                                                 
forth in Section 2.

          Special Repurchase Event.  "Special Repurchase Event" shall have the
          ------------------------                                            
meaning set forth in Section 8(d)(3).

          Special Repurchase Event Election.  "Special Repurchase Event
          ---------------------------------                            
Election" shall have the meaning set forth in Section 8(d)(3)(B).

          SSA. "SSA" shall have the meaning set forth in Section 8(d)(1)(C).
          ---                                                               

          State Health Care Program. "State Health Care Program" shall have the
          -------------------------                                            
meaning set forth in Section 8(d)(1)(E).

          Stock Purchase Agreement.  "Stock Purchase Agreement" shall mean that
          ------------------------                                             
certain Stock Purchase Agreement dated as of March 25, 1997 between General
Electric and the Company.

          Subsidiary.  "Subsidiary" shall mean with respect to any Person each
          ----------                                                          
corporation, partnership, joint venture or other entity in which such Person
has, directly or indirectly, any equity interest in the capital stock thereof,
any partnership interest, or any other equity interest therein.

     2.   Designation of Series; Issuance and Face Amount.  This series of
          -----------------------------------------------                 
Preferred Stock is designated "Series E 4% Cumulative Redeemable Convertible
Preferred Stock" (hereinafter the "Series E Preferred Stock"), and the number of
shares which shall constitute such series shall be 9,000, which number may be
decreased (but not below the number thereof then 
<PAGE>
 
outstanding) from time to time by the Board. The shares of Series E Preferred
Stock shall be issued by the Company for their Face Amount (as herein defined),
in such amounts, at such times and to such persons as shall be specified by the
Board, from time to time.

     3.   Rank.  The Series E Preferred Stock shall, with respect to dividend
          ----                                                               
rights and rights on any Liquidation Event, rank senior to all Junior
Securities.  "Junior Securities" shall mean (i) the Company's Series A 6.0%
Cumulative Preferred Stock, (ii) the Company's Series B Cumulative Preferred
Stock, (iii) the Company's Series C Convertible Preferred Stock, (iv) Common
Stock, and (v) any other classes or series of stock or other equity securities
of the Company; provided, however, that the term "Junior Securities" shall not
                --------- -------                                             
include the Series D Preferred Stock.  Shares of the Company's Series E
Preferred Stock shall, with respect to dividend rights and rights on any
Liquidation Event, rank on a pari passu basis with shares of the Series D
Preferred Stock.

     4.   Dividends.
          --------- 

          a.   Regular Dividends.  The holders of record of the Series E
               -----------------                                        
Preferred Stock shall be entitled to receive, out of funds legally available for
such purpose, cumulative preferential cash dividends accruing from the Issue
Date at the rate of Four Percent (4%) per annum of the Face Amount per share
("Regular Dividends").

          b.   Special Dividends.
               ----------------- 

               (1) Each of the following shall be a "Special Dividend Event
     Trigger Date":

          (A) At any time after April 1, 2007, if for fifteen (15) days out of
          any twenty (20) consecutive trading days on which the Common Stock is
          traded, the Market Price per share of Common Stock shall be less than
          83.3% of the then-applicable Conversion Price , then the last such
          trading date shall be a Special Dividend Event Trigger Date.

          (B) The date of any Funded Debt Default shall be a Special Dividend
          Event Trigger Date.
<PAGE>
 
               (2) Upon any Special Dividend Event Trigger Date, the holders of
     record of the Series E Preferred Stock shall be entitled to receive, out of
     funds legally available for such purpose, in addition to Regular Dividends,
     a special dividend in the following per annum percentages of the Face
     Amount per share ("Special Dividends"):

<TABLE>
<CAPTION>
 
 
              Time Period                                       Special Dividend Percentage
              -----------                                       ---------------------------
<S>                                                                         <C>
 
First full calendar month after Special Dividend Event Trigger               1%
Date                        
- -------------------------------------------------------------------------------------------
Second full calendar month after Special Dividend Event Trigger              2%
Date                                
- -------------------------------------------------------------------------------------------
Third full calendar month after Special Dividend Event Trigger               3%
Date                        
- -------------------------------------------------------------------------------------------
Fourth full calendar month after Special Dividend Event Trigger              4%
Date and all time periods thereafter
- -------------------------------------------------------------------------------------------
</TABLE>

               (3) At any time after the Special Dividend Percentage becomes 4% 
     under Section 4(b)(2) above, the Company may purchase all (but not less
     than all) of the outstanding shares of Series E Preferred Stock owned by
     each holder at a purchase price per share equal to the Face Amount per
     share plus Accumulated Dividends. To exercise its right to purchase the
     shares of Series E Preferred Stock under this Section 4(b)(3), the Company
     shall send a written notice within ten (10) days after the first day of the
     fourth full calendar month after a Special Dividend Event Trigger Date to
     each holder either electing to repurchase such holder's shares pursuant to
     the provisions of this Section 4(b)(3) or declining to so elect (the
     "Special Dividend Event Repurchase Offer").

               (4) Within 10 days after receipt of a Special Dividend Event
     Repurchase Offer, each holder shall send a written notice to the Company
     either accepting or rejecting such Special Dividend Event Repurchase Offer.
     The Company shall purchase all of the shares of each holder accepting the
     Special Dividend Event Repurchase Offer within 10 days after receipt of the
     notice from the holder referred to in the previous sentence at a purchase
     price per share equal to the Face Amount per share plus Accumulated
     Dividends.

               (5) With respect to the shares held by any holder of shares of
     Series E Preferred Stock that does not accept a Special Dividend Repurchase
     Offer, Special Dividends with respect to such shares shall cease to accrue
     as of the first day of the first calendar month following the date of the
     Special Dividend Event Repurchase Offer (subject to Section 4(b)(6) below).
     Any holder of shares of Series E Preferred Stock that does not timely send
     a written notice to the Company either accepting or rejecting a Special
     Dividend Event Repurchase Offer shall be deemed to have rejected such
     offer.
<PAGE>
 
               (6) Notwithstanding any holder's rejection or deemed rejection of
     a Special Dividend Repurchase Offer, upon any later Special Dividend Event
     Trigger Date Special Dividends on the shares of Series E Preferred Stock
     owned by such holder shall accrue as set forth in Section 4(b)(2) above.

       c.      Time of Payment.
               ---------------

               (1) Regular Dividends shall be cumulative from the Issue Date and
     shall be payable in arrears, when and as declared by the Board, on March
     31, June 30, September 30, and December 31 of each year (each such date
     being herein referred to as a "Dividend Payment Date"), commencing on the
     first such date immediately following the Issue Date.  The quarterly period
     between consecutive Dividend Payment Dates shall hereinafter be referred to
     as a "Dividend Period."  Each such Regular Dividend shall be paid to the
     holders of record of the Series E Preferred Stock as their names appear on
     the share register of the Company on the corresponding Record Date.  As
     used above, the term "Record Date" means, with respect to the Regular
     Dividend payable on March 31, June 30, September 30 and December 31,
     respectively, of each year, the preceding March 15, June 15, September 15
     and December 15, or such other record date designated by the Board of the
     Company with respect to the Regular Dividend payable on such respective
     Dividend Payment Date.  Dividends on account of arrears for any past
     Dividend Periods may be declared and paid at any time, without reference to
     any Dividend Payment Date, to holders of record on such date, not exceeding
     50 days preceding the payment date thereof, as may be fixed by the Board.

               (2) Special Dividends shall be cumulative from the date of the
     first day of the first full calendar month after any Special Dividend Event
     Trigger Date and shall be payable in arrears, when and as declared by the
     Board, on each Dividend Payment Date.  Each such Special Dividend shall be
     paid to the holders of record of the Series E Preferred Stock as their
     names appear on the share register of the Company on the corresponding
     Record Date.  Special Dividends on account of arrears for any past Dividend
     Periods may be declared and paid at any time, without reference to any
     Dividend Payment Date, to holders of record on such date, not exceeding 50
     days preceding the payment date thereof, as may be fixed by the Board.

       d.      Accumulation.  In the event that full cash Regular Dividends 
               ------------
(and any full cash Special Dividends) are not paid to the holders of all
outstanding shares of Series E Preferred Stock, and funds available shall be
insufficient to permit payment in full in cash to all such holders of the
preferential amounts to which they are they entitled, the entire amount
available for payment of cash dividends shall be distributed among the holders
of the Series E Preferred Stock ratably in proportion to the full amount to
which they would otherwise be respectively entitled, and any remainder not paid
in cash to the holders of the Series E Preferred Stock shall cumulate as
provided in this subsection 4(d). If, on any Dividend Payment Date, the holders
of the Series E Preferred Stock shall not have received the full Regular
Dividends and full Special Dividends provided for in this Section 4, then such
dividends shall cumulate, whether or not earned or declared, with additional
dividends thereon to accrue at the rate of eight percent (8%) per annum for each
succeeding full Dividend Period during which such dividends shall remain unpaid.
<PAGE>
 
Unpaid dividends for any period less than a full Dividend Period shall cumulate
on a day-to-day basis and shall be computed on the basis of a 360 day year.
"Accumulated Dividends" shall mean, as of any date, all Regular Dividends and
Special Dividends that are either undeclared or unpaid as of such date.

          e.   Restriction with Respect to Junior Securities.
               --------------------------------------------- 

               (1) So long as any Series E Preferred Stock shall remain
     outstanding, no regular periodic cash dividend whatsoever shall be declared
     or paid upon or set apart for payment on any class of Junior Securities,
     unless in each instance at such time no Accumulated Dividends, Change in
     Control Dividend A or Change in Control Dividend B shall be accrued but
     unpaid.

               (2) So long as any Series E Preferred Stock shall remain
     outstanding, no shares of Junior Securities shall be redeemed or purchased
     for cash by the Company or any parent or subsidiary thereof nor shall any
     moneys be paid to or made available for a sinking fund for redemption or
     purchase of any shares of Junior Securities.

               (3) The restrictions set forth in Sections 4(e)(1) and 4(e)(2)
     above shall not apply to (i) up to $100,000 per calendar year applied to
     redemption or purchase by the Company of Junior Securities owned by
     employees of the Company in connection with the separation of such
     employees from their employment with the Company, or (ii) any particular
     cash dividend, redemption or purchase if the holders of a majority of then
     outstanding shares of Series E Preferred Stock consent in writing to the
     declaration or payment of such cash dividend, redemption or purchase, as
     the case may be.

     5.   Liquidation Preference.
          ---------------------- 

          a.   General.  Upon a Liquidation Event, the holders of Series E
               -------                                                    
Preferred Stock then outstanding shall be entitled to be paid, out of the assets
of the Company available for distribution to its shareholders, whether from
capital, surplus or earnings ("Available Assets"), before any payment shall be
made in respect of any Junior Security, an amount equal to the Face Amount per
share plus an amount equal to all Accumulated Dividends, if any (in the
      ----                                                             
aggregate, the "Liquidation Preference Amount").  If upon a Liquidation Event,
the Available Assets shall be insufficient to pay the holders of the Series E
Preferred Stock the full Liquidation Preference Amount, the holders of the
Series E Preferred Stock shall share ratably in any distribution of assets
according to the respective amounts which would be payable in respect of the
shares held by them upon such distribution if all amounts payable on or with
respect to said shares were paid in full.

          b.   Notice Required.  Written notice of any voluntary or involuntary
               ---------------                                                 
Liquidation Event, stating the payment date and the place where the
distributable amount shall be payable, shall be given by mail, postage prepaid,
not less than thirty (30) days prior to the payment date stated therein, to the
holders of record of the Series E Preferred Stock at their respective addresses
as the same shall then appear on the books of the Company.
<PAGE>
 
     6.   Conversion.
          ---------- 

          a.   Exercise of Conversion Right.  Each holder of Series E Preferred
               ----------------------------                                    
Stock shall have the right, at its option, at any time from the Issue Date
through December 31, 2006, to convert, subject to the terms and provisions of
this Section 6, all or any portion of its Series E Preferred Stock then
outstanding into such number of fully paid and non-assessable shares of Common
Stock as results from dividing (i) the sum of (A) the Face Amount of all shares
of Series E Preferred Stock to be converted plus (B) any Accumulated Dividends
on such shares, by (ii) the applicable Conversion Price (as defined below) on
the Conversion Date (as defined below).   Such conversion shall be deemed to
have been made at the close of business on the date that the certificate or
certificates for shares of Series E Preferred Stock shall have been surrendered
for conversion and written notice shall have been received as provided in
Section 6(b) (the "Conversion Date"), so that the person or persons entitled to
receive the shares of Common Stock upon conversion of such shares of Series E
Preferred Stock shall be treated for all purposes as having become the record
holder or holders of such shares of Common Stock at such time and such
conversion shall be at the Conversion Price in effect at such time.  Upon
conversion of any shares of Series E Preferred Stock pursuant to this Section 6,
the rights of the holder of such shares upon the Conversion Date shall be the
rights of a holder of Common Stock only, and each such holder shall not have any
rights in its former capacity as a holder of shares of Series E Preferred Stock.

          b.   Notice to Company.  In order to convert all or any portion of its
               -----------------                                                
outstanding Series E Preferred Stock into shares of Common Stock, the holder of
such Series E Preferred Stock shall deliver the shares of Series E Preferred
Stock to be converted to the Company at its principal office, together with
written notice that it elects to convert those shares of Series E Preferred
Stock into shares of Common Stock in accordance with the provisions of this
Section 6.  Such notice shall specify the number of shares of Series E Preferred
Stock to be converted and the name or names in which the holder wishes the
certificates for shares of Common Stock to be registered, together with the
address or addresses of the person or persons so named, and, if so required by
the Company, shall be accompanied by a written instrument or instruments of
transfer in form satisfactory to the Company, duly executed by the registered
holder of the shares of Series E Preferred Stock to be converted or by its
attorney duly authorized in writing.

          C.   Delivery of Certificate.  As promptly as practicable after the
               -----------------------                                       
surrender as hereinabove provided of shares of Series E Preferred Stock for
conversion into shares of Common Stock, the Company shall deliver or cause to be
delivered to the holder, or the holder's designees, certificates representing
the number of fully paid and non-assessable shares of Common Stock into which
the shares of Series E Preferred Stock are entitled to be converted, together
with a cash adjustment in respect of any fraction of a share to which the holder
shall be entitled as provided in Section 6(d), and, if less than the entire
number of shares of Series E Preferred Stock represented by the certificate or
certificates surrendered is to be converted, a new certificate for the number of
shares of Series E Preferred Stock not so converted.  So long as any shares of
Series E Preferred Stock remain outstanding, the Company shall not close its
Common Stock transfer books.  The issuance of certificates for shares of Common
Stock upon the conversion of shares of Series E Preferred Stock shall be made
without charge to the holder for any tax in 
<PAGE>
 
respect of the issuance of such certificates (other than any transfer,
withholding or other tax if the shares of Common Stock are to be registered in a
name different from that of the registered holder of Series E Preferred Stock).

          d.   Fractional Shares.  No fractional shares of Common Stock or scrip
               -----------------                                                
representing fractional shares of Common Stock shall be issued upon any
conversion of any shares of Series E Preferred Stock, but, in lieu thereof,
there shall be paid an amount in cash equal to the same fraction of the Market
Price of a whole share of Common Stock as of the Conversion Date.

          e.   Reservation of Shares.  The Company shall at all times reserve
               ---------------------                                         
and keep available out of its authorized but unissued shares of Common Stock,
solely for the purpose of effecting the conversion of shares of Series E
Preferred Stock, the full number of whole shares of Common Stock then
deliverable upon the conversion of all shares of Series E Preferred Stock then
outstanding.  The Company shall take at all times such corporate action as shall
be necessary in order that the Company may validly and legally issue fully paid
and non-assessable shares of Common Stock upon the conversion of shares of
Series E Preferred Stock in accordance with the provisions of this Section 6.

          f.   Registration.  If any shares of Common Stock to be reserved for
               ------------                                                   
the purpose of conversion of Series E Preferred Stock require registration or
listing with, or approval of, any governmental authority, stock exchange or
other regulatory body under any federal or state law or regulation or otherwise,
before such shares may be validly issued or delivered upon conversion, the
Company shall, in good faith and as expeditiously as possible, endeavor to
secure such registration, listing or approval, as the case may be.

          g.   Shares Validly Issued and Non-Assessable.  All shares of Common
               ----------------------------------------                       
Stock that may be issued upon conversion of the Series E Preferred Stock shall
upon issuance by the Company be validly issued, fully paid and nonassessable and
free from all taxes, liens and charges with respect to the issuance thereof.

          h.   Retirement of Shares.  Any shares of Series E Preferred Stock
               --------------------                                         
converted pursuant to the provisions of this Section 6 shall be retired and
given the status of authorized and unissued Preferred Stock, undesignated as to
series, subject to reissuance by the Company as shares of Preferred Stock of one
or more series, as may be determined from time to time by the Board.

     7.   Conversion Price.  As used herein, the "Conversion Price" shall
          ----------------                                               
initially be the greater of (i) the Average Market Price as of the Issue Date
and (ii) the Base Conversion Price, subject to adjustment as set forth below.
The "Base Conversion Price" shall be $6.00 per share of Common Stock (as such
Common Stock is constituted as of the date of this Certificate, such amount to
be proportionately adjusted in the event of any stock dividend, stock split,
subdivision, reclassification, combination or similar event with respect to the
Common Stock).  No payment or adjustment shall be made for any dividends on the
Common Stock issuable in such conversion.  The Conversion Price shall be subject
to adjustment from time to time as follows:
<PAGE>
 
          a.   Common Stock Issued at Less Than the Conversion Price.  If the
               -----------------------------------------------------         
Company shall issue any Common Stock other than Excluded Stock (as hereinafter
defined) without consideration or for a consideration per share less than the
Conversion Price in effect immediately prior to such issuance, the Conversion
Price in effect immediately prior to each such issuance shall immediately be
reduced to the price determined by dividing (i) an amount equal to the sum of
(A) the number of shares of Common Stock outstanding immediately prior to such
issuance multiplied by the Conversion Price in effect immediately prior to such
issuance and (B) the consideration, if any, received by the Company upon such
issuance, by (ii) the total number of shares of Common Stock outstanding
immediately after such issuance.  For the purposes of any adjustment of the
Conversion Price pursuant to this Section 7(a), the following provisions shall
be applicable:

               (1) Cash.  In the case of the issuance of Common Stock for cash,
                   ----                                                        
     the amount of the consideration received by the Company shall be deemed to
     be the amount of the cash proceeds received by the Company for such Common
     Stock before deducting therefrom any discounts, commissions, taxes or other
     expenses allowed, paid or incurred by the Company for any underwriting or
     otherwise in connection with the issuance and sale thereof.

               (2) Consideration Other Than Cash.  In the case of the issuance
                   -----------------------------                              
     of Common Stock (otherwise than upon the conversion of shares of capital
     stock or other securities of the Company) for a consideration in whole or
     in part other than cash, including securities acquired in exchange therefor
     (other than securities by their terms so exchangeable), the consideration
     other than cash shall be deemed to be the fair value thereof as determined
     by the Board; provided that such fair value as determined by the Board
     shall not exceed the aggregate Market Price of the shares of Common Stock
     being issued as of the date the Board authorizes the issuance of such
     shares.

               (3) Options and Convertible Securities.  In the case of the
                   ----------------------------------                     
     issuance of (i) options, warrants or other rights to purchase or acquire
     Common Stock (whether or not at the time exercisable), (ii) securities by
     their terms convertible into or exchangeable for Common Stock (whether or
     not at the time so convertible or exchangeable) or (iii) options, warrants
     or rights to purchase such convertible or exchangeable securities (whether
     or not at the time exercisable):

                 (A) the aggregate maximum number of shares of Common Stock
                 deliverable upon exercise of such options, warrants or other
                 rights to purchase or acquire Common Stock shall be deemed to
                 have been issued at the time such options, warrants or rights
                 were issued and for a consideration equal to the consideration
                 (determined in the manner provided in subsections (1) and (2)
                 above), if any, received by the Company upon the issuance of
                 such options, warrants or rights plus the minimum purchase
                 price provided in such options, warrants or rights for the
                 Common Stock covered thereby;
<PAGE>
 
                 (B) the aggregate maximum number of shares of Common Stock
                 deliverable upon conversion of or in exchange for any such
                 convertible or exchangeable securities, or upon the exercise of
                 options, warrants or other rights to purchase or acquire such
                 convertible or exchangeable securities and the subsequent
                 conversion or exchange thereof, shall be deemed to have been
                 issued at the time such securities were issued or such options,
                 warrants or rights were issued and for a consideration equal to
                 the consideration, if any, received by the Company for any such
                 securities and related options, warrants or rights (excluding
                 any cash received on account of accrued interest or accrued
                 dividends), plus the additional consideration (determined in
                 the manner provided in subsections (1) and (2) above), if any,
                 to be received by the Company upon the conversion or exchange
                 of such securities, or upon the exercise of any related
                 options, warrants or rights to purchase or acquire such
                 convertible or exchangeable securities and the subsequent
                 conversion or exchange thereof;

                 (C) on any change in the number of shares of Common Stock
                 deliverable upon exercise of any such options, warrants or
                 rights or conversion or exchange of such convertible or
                 exchangeable securities or any change in the consideration to
                 be received by the Company upon such exercise, conversion or
                 exchange, including, but not limited to, a change resulting
                 from the anti-dilution provisions thereof, the Conversion Price
                 as then in effect shall forthwith be readjusted to such
                 Conversion Price as would have been obtained had an adjustment
                 been made upon the issuance of such options, warrants or rights
                 not exercised prior to such change, or of such convertible or
                 exchangeable securities not converted or exchanged prior to
                 such change, upon the basis of such change;

                 (D) on the expiration or cancellation of any such options,
                 warrants or rights, or the termination of the right to convert
                 or exchange such convertible or exchangeable securities, if the
                 Conversion Price shall have been adjusted upon the issuance
                 thereof, the Conversion Price shall forthwith be readjusted to
                 such Conversion Price as would have been obtained had an
                 adjustment been made upon the issuance of such options,
                 warrants, rights or such convertible or exchangeable securities
                 on the basis of the issuance of only the number of shares of
                 Common Stock actually issued upon the exercise of such options,
                 warrants or rights, or upon the conversion or exchange of such
                 convertible or exchangeable securities, if any; and

                 (E) if the Conversion Price shall have been adjusted upon the
                 issuance of any such options, warrants, rights or convertible
                 or exchangeable securities, no further adjustment of the
                 Conversion Price shall be made 
<PAGE>
 
                 for the actual issuance of Common Stock upon the exercise,
                 conversion, or exchange thereof;

     provided, however, that no increase in the Conversion Price shall be made
     pursuant to subsections (A) or (B) of this subsection (3).

          b.   Excluded Stock.  For purposes of Section 7(a), "Excluded Stock"
               --------------                                                 
shall mean (i) shares of Common Stock issued or reserved for issuance by the
Company as a stock dividend payable in shares of Common Stock, or upon any
subdivision or split-up of the outstanding shares of Common Stock or Series E
Preferred Stock, or upon conversion of shares of Series E Preferred Stock; (ii)
shares of Common Stock reserved for issuance under options and warrants
outstanding on the date hereof; (iii) 750,000 shares of Common Stock reserved
for issuance to key employees and directors of the Corporation pursuant to the
Company's employee stock option plan in effect as of the date hereof; (iv)
shares of Series E Preferred Stock and shares of Common Stock issuable upon the
conversion thereof, and (v) 77,520 shares of Common Stock issuable upon the
conversion of the shares of Series C Convertible Preferred Stock outstanding on
the date hereof.

          c.   Stock Dividends, Subdivisions, Reclassifications or Combinations.
               ---------------------------------------------------------------- 
If the Company shall (i) declare a dividend or make a distribution on its Common
Stock in shares of its Common Stock, (ii) subdivide or reclassify the
outstanding shares of Common Stock into a greater number of shares, or (iii)
combine or reclassify the outstanding Common Stock into a smaller number of
shares, the Conversion Price in effect at the time of the record date for such
dividend or distribution or the effective date of such subdivision, combination
or reclassification shall be proportionately adjusted so that the holder of any
shares of Series E Preferred Stock surrendered for conversion after such date
shall be entitled to receive the number of shares of Common Stock which he would
have owned or been entitled to receive had such shares of Series E Preferred
Stock been converted immediately prior to such date.  Successive adjustments in
the Conversion Price shall be made whenever any event specified above shall
occur.

          d.   Other Distributions.  In case the Company shall fix a record date
               -------------------                                              
for the making of a distribution to all holders of shares of its Common Stock
(i) of shares of any class other than its Common Stock, (ii) of evidence of
indebtedness of the Company or any subsidiary of the Company, (iii) of assets,
or (iv) of rights or warrants, in each such case the Conversion Price in effect
immediately prior thereto shall be reduced immediately thereafter to the price
determined by dividing (1) an amount equal to the difference resulting from (A)
the number of shares of Common Stock outstanding on such record date multiplied
by the Conversion Price per share on such record date, less (B) the fair market
value (as determined by the Board) of said shares or evidences of indebtedness
or assets or rights or warrants to be so distributed, by (2) the number of
shares of Common Stock outstanding on such record date; provided, however, that,
                                                        --------  -------       
so long as there are no Accumulated Dividends on the Series E Preferred Stock or
the Series E Preferred Stock then outstanding for any previous Dividend Payment
Date, the provisions of this Section 7(d) shall not apply to distributions
consisting of cash dividends on the shares of Common Stock up to an amount equal
to 50% of consolidated net income of the Company and its Subsidiaries as of the
calendar year immediately preceding the proposed record date for such 
<PAGE>
 
dividend. Any adjustment provided for by this Section 7(d) shall be made
successively whenever such a record date is fixed.

          e.   Consolidation, Merger, Sale, Lease or Conveyance.  In case of any
               ------------------------------------------------                 
consolidation with or merger of the Company with or into another corporation or
other entity, or in case of any sale, lease or conveyance to another entity of
the assets of the Company as an entirety or substantially as an entirety, each
share of Series E Preferred Stock shall after the date of such consolidation,
merger, sale, lease or conveyance be convertible into the number of shares of
stock or other securities or property (including cash) to which the Common Stock
issuable (at the time of such consolidation, merger, sale, lease or conveyance)
upon conversion of such share of Series E Preferred Stock would have been
entitled upon such consolidation, merger, sale, lease or conveyance; and in any
such case, if necessary, the provisions set forth herein with respect to the
rights and interests thereafter of the holders of the shares of Series E
Preferred Stock shall be appropriately adjusted so as to be applicable, as
nearly as may reasonably be, to any shares of stock or other securities or
property thereafter deliverable on the conversion of the shares of Series E
Preferred Stock.  Nothing in this Section 7(e) shall be construed in any way to
derogate from the right of the holders of the Series E Preferred Stock to
require the Company to repurchase their shares at the Change in Control
Repurchase Price upon a Change in Control, as set forth in Section 8(c) hereof.

          f.   Notice to Holders.  In the event the Company shall propose to
               -----------------                                            
take any action of the type described in subsections (a), (c), (d), and (e) of
this Section 7, the Company shall give notice to each holder of shares of Series
E Preferred Stock, which notice shall specify the record date, if any, with
respect to any such action and the approximate date on which such action is to
take place.  Such notice shall also set forth such facts with respect thereto as
shall be reasonably necessary to indicate the effect of such action on the
Conversion Price and the number, kind or class of shares or other securities or
property which shall be deliverable upon conversion of shares of Series E
Preferred Stock.  In the case of any action which would require the fixing of a
record date, such notice shall be given at least 10 days prior to the date so
fixed, and in the case of all other action, such notice shall be given at least
15 days prior to the taking of such proposed action.

          g.   Statement Regarding Adjustments.  Upon the occurrence of each
               -------------------------------                              
adjustment or readjustment of the Conversion Price of the Series E Preferred
Stock pursuant to this Section 7, the Company shall compute such adjustment or
readjustment in accordance with the terms hereof and prepare and furnish to each
holder a certificate setting forth such adjustment or readjustment and showing
in detail the facts upon which such adjustment or readjustment is based.  Each
such statement shall be signed by the Company's public accountants.

          h.   Treasury Stock.  For the purposes of this Section 7, the sale or
               --------------                                                  
other disposition of any Common Stock theretofore held in the Company's treasury
shall be deemed to be an issuance thereof.


          i.   Good Faith.  The Company shall not, by amendment of its
               ----------                                             
Certificate of Incorporation or through any reorganization, transfer of assets,
consolidation, merger, dissolution, issuance or sale of securities or any other
voluntary action, avoid or seek to avoid the observance 
<PAGE>
 
or performance of any of the terms to be observed or performed hereunder by the
Company, but shall at all times in good faith assist in the carrying out of all
the provisions of this Section 7 and in the taking of all such action as may be
necessary or appropriate in order to protect the conversion rights of the
holders of the shares of Series E Preferred Stock shares against impairment of
any kind.

     8.   Voting Rights; Protective Provisions; Change of Control; Repurchase
          -------------------------------------------------------------------
Upon Certain Events.
- --------------------

          a.   General.  Except as specifically set forth in the DGCL or
               -------                                                  
provided in the balance of this Section 8, the holders of shares of Series E
Preferred Stock shall not be entitled to any voting rights with respect to any
matters voted upon by stockholders.

          b.   Protective Provisions.  So long as any shares of Series E
               ---------------------                                    
Preferred Stock are outstanding, the written consent or the affirmative vote at
a meeting called for that purpose of the holders of a majority of the shares of
Series E Preferred Stock then outstanding, voting separately as a class, shall
be necessary to validate or effectuate any of the following: (i) amend, repeal,
alter or change any of the rights, preferences or privileges of the shares of
Series E Preferred Stock; (ii) create (by reclassification of an existing class
or series, or otherwise) any new class or series of shares of the Company's
capital stock, except for classes or series of shares ranking, with respect to
dividend rights and rights on any Liquidation Event, junior to the Series E
Preferred Stock and the Series E Preferred Stock; (iii) issue any shares of the
Company's capital stock, except for classes or series of shares ranking, with
respect to dividend rights and rights on any Liquidation Event, junior to the
Series E Preferred Stock and the Series E Preferred Stock; or (iv) take any
action that materially and adversely affects the legal rights, preferences or
privileges of the shares of Series E Preferred Stock.  At any time when there
are any Accumulated Dividends or any Change in Control Special Dividend A
accrued but unpaid for any reason, the holders of a majority of the shares of
Series E Preferred Stock then outstanding, voting separately as a class, shall
be necessary to validate or effectuate (i) any acquisition by the Company of all
or substantially all of the assets of another Person, (ii) any acquisition by
the Company of all or substantially all of the equity interests in any Person,
and (iii) any merger or recapitalization transaction to which the Company is a
party.

          c.   Holder's Election upon Change of Control.
               ---------------------------------------- 

               (1) Generally.  In the event of any Change in Control, each
                   ---------                                              
     holder of shares of Series E Preferred Stock shall have the right, at such
     holder's election as set forth below, to receive in respect of each share
     owned by such holder a sum equal to (i) the then applicable Face Value,
                                                                            
     plus (ii) Accumulated Dividends, plus (iii) a "Change of Control Special
     ----                             ----                                   
     Dividend A" equal to 18% of the then applicable Face Value.

               (2) Company's Notification Obligation.
                   --------------------------------- 

          (A) The Company shall notify each holder of shares of Series E
          Preferred Stock in writing within 15 days before any Change in Control
          pursuant to a transaction to which the Company is a party (a "Company
          Change of Control Transaction") 
<PAGE>
 
          setting forth a description of the nature of the Change in Control and
          the date at which such Change in Control is anticipated to take place.

          (B) The Company shall notify each holder of shares of Series E
          Preferred Stock in writing as soon as the Company has Knowledge of any
          Change of Control pursuant to a transaction that is not a Company
          Change of Control Transaction (an "Other Change of Control
          Transaction") setting forth a description of the nature of the Change
          in Control and the date at which such Change in Control took place or
          is anticipated to take place.

          (C) The notices described in clauses (A) and (B) above are
          collectively denominated "Change in Control Notices".

               (3) Holder's Election.  Within five (5) days after receipt of the
                   -----------------                                            
     Change of Control Notice, each holder shall notify the Company in writing
     whether or not such holder will require such holder's shares of Series E
     Preferred Stock to be redeemed by the Company pursuant to this Section.  If
     a holder does not timely notify the Company in writing pursuant to the
     previous sentence, such holder will be deemed to have waived its right to
     require such holder's shares of Series E Preferred Stock to be redeemed by
     the Company pursuant to this Section; provided, however, that such waiver
     shall only apply to the Change of Control relating to the relevant Change
     of Control Notice, and not any subsequent Change of Control or Change of
     Control Notice.

               (4) Company Change of Control.  The Company shall redeem the
                   -------------------------                               
     shares of each holder of Series E Preferred Stock so electing such a
     redemption in connection with a Company Change of Control Transaction by
     making cash payments to such holder in respect of each share owned by such
     holder as follows: (i) a sum equal to the then applicable Face Value plus
                                                                          ----
     Accumulated Dividends on or prior to the date of the Company Change in
     Control Transaction as a condition precedent to the effectiveness of such
     Company Change in Control Transaction, and (ii) a sum equal to the Change
     in Control Special Dividend A as soon as funds are legally available for
     payment thereof after the date of the Company Change in Control
     Transaction.  Any Company Change of Control Transaction shall be void and
     of no force and effect if the payments set forth in clause (i) of this
     Section 8(c)(4) are not made on or prior to the date of such Company Change
     in Control Transaction.

               (5) Other Changes of Control.  The Company shall redeem the
                   ------------------------                               
     shares of each holder of Series E Preferred Stock so electing such a
     redemption in connection with an Other Change of Control Transaction as
     promptly as practicable after receipt of such holder's notice of such
     election by making cash payments to such holder in respect of each share
     owned by such holder as follows: (i) a sum equal to the then applicable
     Face Value plus Accumulated Dividends plus a sum equal to the Change in
                ----                                                        
     Control Special Dividend A as soon as funds are legally available for
     payment thereof after the date of the Other Change in Control Transaction.

          d.   Special Repurchase Events.
               ------------------------- 
<PAGE>
 
               (1) Representations.  The Company represents and warrants to each
                   ---------------                                              
     holder of shares of Series E Preferred Stock as follows:

          (A) Except as otherwise disclosed in the Disclosure Schedule to the
          Stock Purchase Agreement (as such term is defined therein), neither
          the Company nor any of its Affiliates since inception has provided any
          research, educational or study grants or other financial support of
          any kind to any hospital, physician, or health care provider.

          (B) Neither the Company nor any of its Affiliates since inception has
          received notice that the Company or any Subsidiary has been, or to the
          Company's knowledge has been, the subject of any investigative
          proceeding before any federal or state regulatory authority or the
          agent of any such authority, including without limitation federal and
          state health authorities.

          (C) Neither the Company nor any Affiliate, nor the officers,
          directors, employees or agents of any of the Company or any Affiliate,
          and none of the Persons who provide professional services under
          agreements with any of the Company or any Affiliate as agents of such
          entities have engaged in any activities which are prohibited, or are
          cause for civil penalties or mandatory or permissive exclusion from
          Medicare or Medicaid, under (S)(S) 1320a-7, 1320a-7a, 1320a-7b, or
          1395nn of Title 42 of the United States Code, the federal Civilian
          Health and Medical Plan of the Uniformed Services statute ("CHAMPUS"),
          or the regulations promulgated pursuant to such statutes or
          regulations or related state or local statutes or which are prohibited
          by any private accrediting organization from which the Company or any
          of its Affiliates seeks accreditation or by generally recognized
          professional standards of care or conduct, including but not limited
          to the following activities:

               (a) knowingly and willfully making or causing to be made a false
          statement or representation of a material fact in any application for
          any benefit or payment;

               (b) knowingly and willfully making or causing to be made any
          false statement or representation of a material fact for use in
          determining rights to any benefit or payment;

               (c) presenting or causing to be presented a claim for
          reimbursement under CHAMPUS, Medicare, Medicaid or any other State
          Health Care Program or Federal Health Care Program that is (i) for an
          item or service that the Person presenting or causing to be presented
          knows or should know was not provided as claimed, or (ii) for an item
          or service and the Person presenting knows or should know that the
          claim is false or fraudulent;

               (d) knowingly and willfully offering, paying, soliciting or
          receiving any remuneration (including any kickback, bribe or rebate),
          directly or indirectly, 
<PAGE>
 
          overtly or covertly, in cash or in kind (i) in return for referring,
          or to induce the referral of, an individual to a Person for the
          furnishing or arranging for the furnishing of any item or service for
          which payment may be made in whole or in part by CHAMPUS, Medicare or
          Medicaid, or any other State Health Care Program or any Federal Health
          Care Program, or (iii) in return for, or to induce, the purchase,
          lease, or order, or the arranging for or recommending of the purchase,
          lease, or order, of any good, facility, service, or item for which
          payment may be made in whole or in party by CHAMPUS, Medicare or
          Medicaid or any other State Health Care Program or any Federal Health
          Care Program; or

               (e) knowingly and willfully making or causing to be made or
          inducing or seeking to induce the making of any false statement or
          representation (or omitting to state a material fact required to be
          stated therein or necessary to make the statements contained therein
          not misleading) or a material fact with respect to (i) the conditions
          or operations of a facility in order that the facility may qualify for
          CHAMPUS, Medicare, Medicaid or any other State Health Care Program
          certification or any Federal Health Care Program certification, or
          (ii) information required to be provided under (S) 1124(A) of the
          Social Security Act ("SSA") (42 U.S.C. (S) 1320a-3).

          (D) Neither the Company nor any other Person who after the Issue Date
          will have a direct or indirect ownership interest (as those terms are
          defined in 42 C.F.R. (S) 1001.1001(a)(2)) in the Company or any
          Affiliate of 5% or more (other than General Electric Company, a New
          York corporation ("General Electric")), or who will have an ownership
          or control interest (as defined in SSA (S) 1124(a)(3), or any
          regulations promulgated thereunder) in the Company or any Affiliate
          (other than General Electric), or who will be an officer, director,
          agent (as defined in 42 C.F.R. (S) 1001.1001(a)(2)), or managing
          employee (as defined in SSA (S) 1126(b) or any regulations promulgated
          thereunder) of the Company or any Affiliate and (ii) to the best
          Knowledge of the Company and any Affiliate, no Person or entity with
          any relationship with such entity (including without limitation a
          parent company or shareholder of, or partner in an Affiliate) who
          after the Issue Date will have an indirect ownership interest (as that
          term is defined in 42 C.F.R. (S) 1001.1001(a)(2)) in the Company or
          any Affiliate of 5% or more (other than General Electric): (1) has had
          a civil monetary penalty assessed against it under (S) 1128A of the
          SSA or any regulations promulgated thereunder; (2) has been excluded
          from participation under the Medicare program or a state health care
          program as defined in SSA (S) 1128(h) or any regulations promulgated
          thereunder ("State Health Care Program") or a federal health care
          program as defined in SSA (S) 1128B(f) ("Federal Health Care
          Program"); or (3) has been convicted (as that term is defined in 42
          C.F.R. (S) 1001.2) of any of the following categories of offenses as
          described in SSA (S) 1128(a) and (b)(1), (2), (3) or any regulations
          promulgated thereunder:

               (a) criminal offenses relating to the delivery of an item or
          service under Medicare or any State Health Care Program or any Federal
          Health Care Program;
<PAGE>
 
               (b) criminal offenses under federal or state law relating to
          patient neglect or abuse in connection with the delivery of a health
          care item or service;

               (c) criminal offenses under federal or state law relating to
          fraud, theft, embezzlement, breach of fiduciary responsibility, or
          other financial misconduct in connection with the delivery of a health
          care item or service or with respect to any act or omission in a
          program operated by or financed in whole or in part by any federal,
          state or local governmental agency;

               (d) federal or state laws relating to the interference with or
          obstruction of any investigation into any criminal offense described
          in (a) through (c) above; or

               (e) criminal offenses under federal or state law relating to the
          unlawful manufacture, distribution, prescription or dispensing of a
          controlled substance.

               (2) Covenants.  The Company covenants that as long as any shares
                   ---------                                                   
     of Series E Preferred Stock are outstanding:

 

          (A) The operations of the Company and its Affiliates will be conducted
          in accordance with all Applicable Laws, including, without limitation,
          all such laws, regulations, orders and requirements promulgated by any
          Governmental Authority or relating to consumer protection, equal
          opportunity, health care industry regulation, third party
          reimbursement (including Medicare and Medicaid), environmental
          protection, fire, zoning and building and occupational safety matters,
          except for violations that individually or in the aggregate would not
          and, insofar as may reasonably be foreseen, in the future will not,
          have a Material Adverse Effect on the Company or any Subsidiary.

          (B) Without limiting the generality of the foregoing, the operations
          of the Company and its Affiliates will be conducted in accordance with
          all laws, regulations, orders and requirements relating to health care
          industry regulation and third party reimbursement (including Medicare
          and Medicaid).

          (C) Without limiting the generality of the foregoing, the Company and
          all Affiliates shall comply in all material respects with all
          directives, orders, instructions, bulletins and other announcements
          received from third party payors and their agents (including without
          limitation Medicare carriers and fiscal intermediaries) regarding
          participation in third party payment programs, and including without
          limitation preparation and submission of claims for reimbursement.
          Nothing in this Section 8(d)(2)(C) shall be construed as or is
          intended to create any third party beneficiaries.

               (3) Special Repurchase Events.  The failure of any representation
                   -------------------------                                    
     or warranty of the Company contained in Section 8(d)((1) to be true on the
     Issue Date in any material respect, or the Company's breach of any of the
     covenants set forth in Section 8(d)(2), shall be a "Special Repurchase
     Event".  Upon any Special Repurchase Event, each 
<PAGE>
 
     holder of shares of Series E Preferred Stock shall have the right, at such
     holder's election as set forth below, to receive in respect of each share
     owned by such holder a sum equal to (i) the then applicable Face Value,
     plus (ii) Accumulated Dividends.
     ----                 

          (A) The Company shall notify each holder of Series E Preferred Stock
          in writing as soon as commercially practicable upon the occurrence of
          any Special Repurchase Event (a "Company Special Repurchase Event
          Notice"), and each holder may notify the Company in writing within 30
          days after such holder has actual knowledge of the occurrence of any
          Special Repurchase Event (a "Holder Special Repurchase Event Notice").
          Upon receipt of a Holder Special Repurchase Event Notice, the Company
          shall send copies of such Holder Special Repurchase Event Notice to
          all other holders, if any, of shares of Series E Preferred Stock.  A
          Company Special Repurchase Event Notice or a Holder Special Repurchase
          Event Notice shall be denominated herein a "Special Repurchase Event
          Notice".

          (B) Within ten (10) days after receipt of any Special Repurchase Event
          Notice (or a copy thereof), each holder shall send a written notice to
          the Company either electing to have such holder's shares repurchased
          pursuant to the provisions of this Section 8(d) or declining to so
          elect (the "Special Repurchase Event Election").  Within 10 days after
          receipt of each holder's Special Repurchase Event Election, the
          Company shall repurchase each share of Series E Preferred Stock of
          each such holder electing to have such holder's shares repurchased
          pursuant to the provisions of this Section 8(d) at a price per share
          equal to the Face Amount per share plus Accumulated Dividends.

          (4) Cumulative Remedies.  The remedies provided to the holders of the
              -------------------                                              
     shares of Series E Preferred Stock set forth in this Section 8(d) with
     respect to any misrepresentation or breach of covenant contained herein
     shall be without prejudice to any other remedies of such holders for such
     misrepresentation or breach, including without limitation (in the case of
     General Electric) any remedies of General Electric under the Stock Purchase
     Agreement.

     9.   Redemption.
          ---------- 

          a.   Optional Redemption.  The Company may at any time from and after
               -------------------                                             
January 1, 2007, and from time to time thereafter, redeem out of funds legally
available therefor all of the shares of Series E Preferred Stock at its election
expressed by resolution of the Board, upon not less than thirty (30) days' prior
notice to the holders of record of the Series E Preferred Stock to be redeemed,
given by mail, at the Redemption Price (as hereinafter defined) on the
Redemption Date (as hereinafter defined).  The Company shall not redeem less
than all the outstanding shares of Series E Preferred Stock under this Section
9(a).

          b.   Company's Election upon Change in Control.  In the event of any
               -----------------------------------------                      
Change in Control, the Company may redeem out of funds legally available
therefor all of the shares of Series E Preferred Stock at its election expressed
by resolution of the Board upon not less than thirty (30) days' prior notice to
the holders of record of the Series E Preferred Stock to 
<PAGE>
 
be redeemed, given by mail. Upon such resolution of the Board, each holder of
shares of Series E Preferred Stock shall have the right to receive on the
Redemption Date (as defined below) in respect of each share owned by such holder
a sum equal to (i) the then applicable Face Value, plus (ii) Accumulated
                                                   ----
Dividends, plus (iii) a "Change of Control Special Dividend B" equal to 23% of
           ----
the then applicable Face Value. The Company shall not redeem less than all of
the outstanding shares of Series E Preferred Stock under this Section 9(b).

          c.   Redemption Date.  The "Redemption Date" shall be the date fixed
               ---------------                                                
for redemption in the notice of redemption under Sections 9(a) or 9(b) above.
The Redemption Date with respect to any Company Change in Control Transaction
shall be a date on or before the effective date of a Change in Control.

          d.   Redemption Price.  The price at which outstanding shares of
               ----------------                                           
Series E Preferred Stock shall be redeemed pursuant to Section 9(a) shall be the
Face Amount per share, as then in effect, together with all Accumulated
Dividends on such shares to the Redemption Date (the "Redemption Price").

          e.   Notice of Redemption.  Each notice of redemption shall state (i)
               --------------------                                            
the Redemption Date, (ii) the number of shares of Series E Preferred Stock to be
redeemed, (iii) as the case may be, pursuant to Sections 9(a) and 9(b) above,
either (x) the Redemption Price or (y) the sum equal to (A) the then applicable
Face Value, plus (B) Accumulated Dividends, plus (C) the Change of Control
            ----                            ----                          
Special Dividend B equal to 5% of the then applicable Face Value applicable to
the shares to be redeemed, (iv) the place or places where such shares are to be
surrendered, and (v) that dividends on shares to be redeemed will cease to
accrue on the Redemption Date.  No defect in any such notice to any holder of
Series E Preferred Stock shall affect the validity of the proceedings for the
redemption of any other shares of such Series E Preferred Stock.

          f.   Retirement of Shares.  Any shares of Series E Preferred Stock
               --------------------                                         
redeemed pursuant to the provisions of this Section 9 shall be retired and given
the status of authorized and unissued Preferred Stock, undesignated as to
series, subject to reissuance by the Company as shares of Preferred Stock of one
or more series, as may be determined from time to time by the Board.

          g.   Condition Precedent to Change in Control.  If the Company fails
               ----------------------------------------                       
to pay all amounts payable to the holders of shares of Series E Preferred Stock
due in respect of a redemption pursuant to Section 9(b) hereof prior on or prior
to the Redemption Date, any related Company Change of Control Transaction shall
be void and of no force and effect.

          h.   Restrictions on Redemptions.  No shares of Series E Preferred
               ---------------------------                                  
Stock shall be redeemed under this Section 9:  (i) at any time that such
redemption is prohibited by the DGCL; or (ii) at any time that the terms and
provisions of any contract or other agreement of the Company in effect as of the
Issue Date providing financing or working capital to the Company specifically
prohibits such redemption or provides that such redemption would constitute a
breach thereof or a default thereunder.
<PAGE>
 
     10.  No Sinking Fund.  No sinking fund shall be established for the
          ---------------                                               
retirement or redemption of shares of Series E Preferred Stock.

     11.  Preemptive or Subscription Rights.  No holder of shares of Series E
          ---------------------------------                                  
Preferred Stock shall have any preemptive or subscription rights in respect of
any securities of the Company that may be issued.

     12.  No Other Rights.  The shares of Series E Preferred Stock shall not
          ---------------                                                   
have any designations, preferences or relative, participating, optional or other
special rights except as expressly set forth in the Company's Certificate of
Incorporation, this Certificate or as otherwise required by law.
<PAGE>
 
     RESOLVED, FURTHER, that the Secretary of the Company be, and he hereby is,
authorized, empowered and directed to execute an Amended Certificate of
Designation, Preferences and Rights of Series E Preferred Stock and that such
Certificate be delivered to and filed with the Secretary of State of the State
of Delaware pursuant to the provisions of Section 103 and Section 151(g) of the
DGCL, both as amended.

     IN WITNESS WHEREOF, Alliance Imaging, Inc. has caused this Certificate of
Designation to be executed by its Secretary as of March 25, 1997.

 

                              ALLIANCE IMAGING, INC.



                              By:__________________
                                 Terrence M. White,
                                  Secretary


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