ALLIANCE IMAGING INC /DE/
8-K, 1997-08-01
MEDICAL LABORATORIES
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<PAGE>





                          SECURITIES AND EXCHANGE COMMISSION
                                           
                               Washington, D.C.  20549
                                           
                              --------------------------

                                       FORM 8-K
                                           
                                           
                                    CURRENT REPORT
                                           
                          Pursuant to Section 13 or 15(d) of
                         the Securities Exchange Act of 1934
                                           
                              -------------------------
                                           
                                           
                           August 1, 1997 (July 23, 1997)                       
     ---------------------------------------------------------------------------
                   Date of Report (Date of earliest event reported)
                                           
                                           
                               ALLIANCE IMAGING, INC.                      
           ----------------------------------------------------------------
                (Exact name of registrant as Specified in its charter)
                                           
                                           
                                           
    Delaware                           0-16334                      33-0239910
- --------------------------------------------------------------------------------
(State or Other Jurisdiction        (Commission                   (IRS Employer 
      of Incorporation)              File Number          Identification Number)


         1065 North PacifiCenter Drive, Suite 200, Anaheim, California 92806    
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          (Address of principal executive offices)               (Zip Code)
                                           
                                           
                                    (714) 688-7100                      
              ----------------------------------------------------------
                  Registrant's telephone number, including area code
                                           
                                           
            3111 North Tustin Avenue, Suite 150, Orange, California 92665
            -------------------------------------------------------------
            (Former name or Former Address, if Changed Since Last Report)

<PAGE>

Item 1.  CHANGES IN CONTROL OF REGISTRANT.

    On July 23, 1997, Newport Investment LLC, a Delaware limited liability
company (the "Investor") and certain individuals and entities (each a
"Stockholder" and, collectively, the "Stockholders"), entered into a Stockholder
Agreement, dated as of July 23, 1997 (the "Stockholder Agreement").  Pursuant to
the Stockholder Agreement, each Stockholder granted to the Investor an option to
purchase (the "Option"), in the Investor's sole discretion, (i) shares of common
stock, par value $.01 per share (the "Common Stock") of Alliance Imaging, Inc.
(the "Company"); (ii) as applicable, shares of Series D Cumulative Redeemable
Convertible Preferred Stock, par value $.01 per share (the "Series D Stock") of
the Company; and (iii) any other shares of Common Stock or Series D Stock
acquired by the Stockholders during the term of the Stockholder Agreement
(including, without limitation, through the conversion of any convertible
security or the exercise of any Company stock options or warrants) (collectively
the "Subject Shares"), as set forth more fully in Schedule A, attached to the
Stockholder Agreement.  The Stockholder Agreement is attached hereto as Exhibit
2.1 and incorporated herein by reference.

    The Stockholders entered into the Stockholder Agreement to induce the
Investor to enter into, and in consideration of its entering into, the Agreement
and Plan of Merger, dated as of July 23, 1997 (the "Merger Agreement"), between
the Investor and the Company, pursuant to which the Investor shall, subject to
the terms and conditions of the Merger Agreement, form a new corporation to be
called Newport Acquisition Corp. ("Newco"), which shall be merged with and into
the Company (the "Merger"). The Company will be the surviving corporation in the
Merger (the "Surviving Corporation").

    Pursuant to the Option, each Stockholder severally granted to the 
Investor, and the Investor at its sole discretion may purchase and acquire 
all the Subject Shares, at a price per share equal to the $11.00 (the "Cash 
Merger Price") or, in respect of a share of Series D Stock, an amount in cash 
equal to the Cash Merger Price for each common share that would have been 
received had such share of Series D Stock been converted into shares 
immediately prior to such purchase.

    Pursuant to the Stockholder Agreement, each Stockholder irrevocably granted
to and appointed, the Investor and Josh Harris, in his capacity as an officer of
the Investor, such Stockholder's proxy and attorney-in-fact to (i) vote such
Stockholder's Subject Shares (except for the Series D Stock, unless it shall
first have been converted into Common Stock), or grant a consent or approval
with respect to the Merger and the adoption by the Company of the Merger
Agreement and (ii) vote such Stockholder's Subject Shares (except for the Series
D Stock, unless it shall first have been converted into Common Stock) against
any Alternative Transaction (as defined in the Merger Agreement) and certain
other transactions that would impede, frustrate, prevent or nullify the Merger,
the Merger Agreement or any transaction contemplated thereby.

    As of July 23, 1997, the Company had 10,943,138 shares of Common Stock
outstanding.  Pursuant to the Stockholder Agreement, as of that date,
approximately

                                        - 2 -
<PAGE>

5,949,382 shares of outstanding Common Stock were beneficially owned by the
Stockholders, 3,000,000 shares of Common Stock were issuable upon conversion by
the Stockholders of the Series D Stock and 765,025 shares of Common Stock were
issuable upon exercise by the Stockholders of options and warrants.  As a
result, as of July 23, 1997, assuming conversion of the Series D Stock and
exercise of all options and warrants subject to the Stockholder Agreement (but
assuming that no other options or warrants were exercised), there would be
approximately 14,708,163 shares of Common Stock outstanding, of which
approximately 9,714,407 would be subject to the terms of the Stockholder
Agreement.  Consequently, making those assumptions, as a result of the
Stockholder Agreement the Investor is the beneficial owner (as defined in Rule
13d-3 under the Securities Exchange Act of 1934, as amended) of 66.0 % of the
Company's Common Stock.

    The foregoing descriptions of the Stockholder Agreement, the Option and the
proxy rights are qualified in their entirety by reference to the Stockholder
Agreement.

Items 2-4.    NOT APPLICABLE.

Item 5.       OTHER EVENTS.

    On July 23, 1997, the Company entered into the Merger Agreement with the
Investor.  The Merger Agreement is attached hereto as Exhibit 2.2 and
incorporated herein by reference.

    Pursuant to the Merger Agreement, each share of Company Common Stock, other
than shares held in treasury by the Company or shares with respect to which
dissenter's rights are perfected under the DGCL, will be subject to an election
to either (i) receive the Cash Merger Price from the Surviving Corporation or
(ii) remain outstanding and continue to represent one share of Common Stock, par
value $.01 per share, of the Surviving Corporation.  Notwithstanding such
elections, the Merger Agreement provides that 727,273 shares of Common Stock
will be retained by holders and not converted into the right to receive the Cash
Merger Price, and contains proration provisions designed to achieve that result.
The foregoing description of the Merger and the Merger Agreement is qualified in
its entirety by reference to the Merger Agreement.  

    On July 23, 1997, Investor and the Company issued a joint press release
(the "Press Release") announcing the execution of the Merger Agreement.  The
Press Release is attached hereto as Exhibit 99.1 and is incorporated herein by
reference.

Item 6.  NOT APPLICABLE.  

Item 7.  FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS.

 (a)-(b) NOT APPLICABLE.

    (c)  EXHIBITS REQUIRED BY ITEM 601 OF REGULATION S-K.

                                        - 3 -
<PAGE>

         2.1  Stockholder Agreement among Newport Investment LLC and the
              individuals and entities listed on Schedule A attached thereto, 
              dated as of July 23, 1997.


         2.2  Agreement and Plan of Merger between Alliance Imaging, Inc.
              and Newport Investment LLC, dated as of July 23, 1997.

         99.1 Press release issued by Newport Investment LLC and Alliance
              Imaging, Inc., dated July 23, 1997.

Item 8.  NOT APPLICABLE.

                                        - 4 -
<PAGE>

                                      SIGNATURE

    Pursuant to the requirements of the Securities Exchange Act of 1934, the 
registrant has duly caused this report to be signed on its behalf by the 
undersigned hereunto duly authorized.

Dated:  August 1, 1997

                        ALLIANCE IMAGING, INC.   


                        By: /s/   Terrence M. White                          
                             ------------------------------------------------
                              Name:    Terrence M. White
                              Title:   Senior Vice President, Chief
                                       Financial Officer and Secretary

                                        - 5 -
<PAGE>

                                    EXHIBIT INDEX


Exhibit No.        Description
- -----------        -----------

    2.1     Stockholder Agreement among Newport Investment LLC and the
            individuals and entities listed on Schedule A attached thereto, 
            dated as of July 23, 1997.

    2.2     Agreement and Plan of Merger between Alliance Imaging, Inc. and
            Newport Investment LLC, dated as of July 23, 1997.

    99.1    Press release issued by Newport Investment LLC and Alliance
            Imaging, Inc., dated July 23, 1997.

                                        - 6 -


<PAGE>


                                                  STOCKHOLDER AGREEMENT, dated
                                        as of July 23, 1997, among NEWPORT
                                        INVESTMENT LLC, a Delaware limited
                                        liability company (the "INVESTOR") and
                                        the individuals listed on SCHEDULE A
                                        attached hereto (each, a "STOCKHOLDER"
                                        and, collectively, the "STOCKHOLDERS").


          WHEREAS, THE INVESTOR AND ALLIANCE IMAGING, INC. (THE "COMPANY")
propose to enter into an Agreement and Plan of Merger dated as of the effective
date hereof (as the same may be amended or supplemented, the "MERGER AGREEMENT")
providing for the merger with and into the Company of a corporation to be formed
and wholly owned by the Investor (the "MERGER"), upon the terms and subject to
the conditions set forth in the Merger Agreement, a copy of which is attached
hereto as Exhibit I;

          WHEREAS, each Stockholder owns (a) the number of shares of common
stock, par value $.01 per share, of the Company (the "COMMON STOCK") set forth
opposite his or its name on SCHEDULE A attached hereto and/or (b) shares of
Series D Cumulative Redeemable Convertible Preferred Stock, par value $.01 per
share, of the Company (the "SERIES D STOCK" and collectively with the Common
Stock, the "CAPITAL STOCK"), which are convertible into the number of shares of
Common Stock set forth opposite his or its name on SCHEDULE A attached hereto
(such shares of Capital Stock, together with any other shares of Capital Stock
of the Company acquired by such Stockholders after the date hereof and during
the term of this Agreement (including, without limitation, through the
conversion of any convertible securities or through the exercise of any Company
Stock Options or Warrants), being collectively referred to herein as the
"SUBJECT SHARES");

          WHEREAS, each Stockholder owns Company Stock Options or Warrants
pursuant to which such Stockholder has the right to acquire the number of shares
of Common Stock set forth opposite his or its name on SCHEDULE A attached
hereto;

          WHEREAS, as a condition to its willingness to enter into the Merger
Agreement, the Investor has requested that each Stockholder enter into this
Agreement;

          NOW, THEREFORE, to induce the Investor to enter into, and in
consideration of its entering into, the Merger Agreement, and in consideration
of the premises and the representations, warranties and agreements contained
herein, the parties agree as follows (capitalized terms used herein


<PAGE>

but not defined herein have the meanings set forth in the Merger Agreement):


          1.   REPRESENTATIONS AND WARRANTIES OF EACH STOCKHOLDER.

               Each Stockholder hereby represents and warrants, severally and
not jointly, to the Investor as of the date hereof in respect of himself or
itself as follows:

               (a)  AUTHORITY.  The Stockholder has all requisite power and
authority to enter into this Agreement and to consummate the transactions
contemplated hereby.  The execution, delivery and performance of this Agreement
by the Stockholder, and the consummation of the transactions contemplated
hereby, have been duly authorized by all necessary action on the part of the
Stockholder. This Agreement has been duly executed and delivered by the
Stockholder and constitutes a valid and binding obligation of the Stockholder
enforceable against the Stockholder in accordance with its terms.  Except for
the expiration or termination of the waiting periods under the HSR Act,
informational filings with the SEC, and compliance with any applicable state
securities laws, the execution and delivery of this Agreement do not, and the
consummation of the transactions contemplated hereby and compliance with the
terms hereof will not, (i) conflict with, or result in any violation of, or
default (with or without notice or lapse of time or both) under any provision
of, any certificate or articles of incorporation, bylaws, certificate or
articles of limited partnership, limited partnership agreement, trust agreement,
loan or credit agreement, note, bond, mortgage, indenture, lease or other
agreement, instrument, permit, concession, franchise, license, judgment, order,
notice, decree, statute, law, ordinance, rule or regulation applicable to the
Stockholder or to the Stockholder's property or assets, including the Subject
Shares, (ii) to such Stockholder's knowledge, require any filing with, or
permit, authorization, consent or approval of, or notice to, any federal, state
or local government or any court, tribunal, administrative agency or commission
or other governmental or regulatory authority or agency, domestic, foreign or
supranational, or (iii) to such Stockholder's knowledge, violate any order,
writ, injunction, decree, statute, rule or regulation applicable to the
Stockholder or any of the Stockholder's properties or assets, including the
Subject Shares.  If the Stockholder is a natural person and is married, and the
Stockholder's Subject Shares constitute community property or otherwise need
spousal or other approval for this Agreement to be legal, valid and binding,
this Agreement has been duly authorized, executed and delivered by, and
constitutes a valid and binding agreement of, the Stockholder's spouse,
enforceable against such spouse in accordance with its terms.  No trust of which
such Stockholder is a trustee requires the consent of any


                                       -2-
<PAGE>

beneficiary to the execution and delivery of this Agreement or to the
consummation of the transactions contemplated hereby.

               (b)  THE SUBJECT SHARES.  The Stockholder is the record and
beneficial owner of, and has good and marketable title to, the Subject Shares,
Company Stock Options and/or Warrants set forth opposite his or its name on
SCHEDULE A attached hereto, free and clear of any Liens (except for any Subject
Shares that are held of record by the Depositary Trust Company, or its nominee,
for the benefit of any Stockholder, which shall be transferred into record
ownership of such Stockholder as soon as practicable after the date hereof).
The Stockholder does not own, of record or beneficially, any shares of capital
stock of the Company or any Subsidiary or any option, warrants, rights or other
securities convertible into or exercisable for shares of capital stock of the
Company other than the Subject Shares, Company Stock Options and Warrants set
forth opposite his or its name on Schedule A attached hereto, and other than the
Company's Senior Notes which are convertible into shares of the Company's Series
E Cumulative Redeemable Convertible Preferred Stock, par value $.01, none of
which Senior Notes are so convertible prior to January 1, 1998.  Except as set
forth on SCHEDULE 1(b), the Stockholder has the sole right to vote Subject
Shares owned by it, and,  none of such Subject Shares is subject to any voting
trust or other agreement, arrangement or restriction with respect to the voting
of such Subject Shares, except as contemplated by this Agreement.

               (c)  BROKERS.  No broker, finder, investment banker or other
person retained by such Stockholder is entitled to any brokerage, finder's or
other fee or commission in connection with the execution of this Agreement by
such Stockholder or the performance by such Stockholder of its obligations
hereunder (it being understood that Salomon Brothers Inc may be entitled to
certain fees and expenses in connection with the transactions contemplated by
the Merger Agreement, which fees and expenses shall be paid by the Company as
set forth in the Merger Agreement).

          2.   OPTION TO PURCHASE SHARES.

               Each Stockholder hereby severally grants to the Investor an
option to purchase (the "OPTION"), in the Investor's sole discretion, all
Subject Shares set forth opposite such Stockholder's name on SCHEDULE A hereto,
at a price per Share equal to the Cash Merger Price or, in respect of a share of
Series D Stock, an amount in cash equal to the Cash Merger Price for each Share
that would have been received had such share of Series D Stock been converted
into Shares immediately prior to such purchase (the "EXERCISE PRICE"). The
Option shall be exercisable by the Investor, as to all Stockholders, at any time
prior to the termination of this Agreement, by delivery of a notice of exercise
to all


                                       -3-
<PAGE>

Stockholders at the address of each Stockholder set forth in SCHEDULE A.  The
Subject Shares shall be delivered (with any appropriate executed stock power) by
each Stockholder to Irell & Manella (the "ESCROW AGENT"), which shall hold the
Subject Shares in escrow pending receipt by the Stockholder of the purchase
price payable therefor; upon such receipt the Subject Shares shall be delivered
by the Escrow Agent to Investor.  Within ten business days after delivery of
such notice, the Investor shall pay to each Stockholder a cash amount equal to
the aggregate Exercise Price payable in respect of such Stockholder's Subject
Shares against delivery of certificates representing such Subject Shares.

          3.   REPRESENTATIONS AND WARRANTIES OF THE INVESTOR.

               (a)  AUTHORITY.  The Investor has all requisite power and
authority to enter into this Agreement and to consummate the transactions
contemplated hereby.  The execution, delivery and performance of this Agreement
by the Investor, and the consummation of the transactions contemplated hereby,
have been duly authorized by all necessary action on the part of the Investor.
This Agreement has been duly executed and delivered by the Investor and
constitutes a valid and binding obligation of the Investor, enforceable against
the Investor in accordance with its terms. Except for the expiration or
termination of the waiting periods under the HSR Act, informational filings with
the SEC, the execution and delivery of this Agreement do not, and the
consummation of the transactions contemplated hereby and compliance with the
terms hereof will not, (i) conflict with, or result in any violation of, or
default (with or without notice or lapse of time or both) under any provision
of, any certificate or articles of incorporation, bylaws, certificate or
articles of limited partnership, limited partnership agreement, trust agreement,
loan or credit agreement, note, bond, mortgage, indenture, lease or other
agreement, instrument, permit, concession, franchise, license, judgment, order,
notice, decree, statute, law, ordinance, rule or regulation applicable to the
Investor or to the Investor's property or assets, (ii) require any filing with,
or permit, authorization, consent or approval of, or notice to, any federal,
state or local government or any court, tribunal, administrative agency or
commission or other governmental or regulatory authority or agency, domestic,
foreign or supranational, or (iii) violate any order, writ, injunction, decree,
statute, rule or regulation applicable to the Investor or any of the Investor's
properties or assets.

               (b)  BROKERS.  No broker, finder, investment banker or other
person is entitled to any brokerage, finder's or other fee or commission for
which any Stockholder will be liable in connection with the execution of this
Agreement by the Investor or the performance by the Investor of its obligations
hereunder.


                                       -4-
<PAGE>

               (c)  COMPLETE AGREEMENT; ADDITIONAL OR SIDE AGREEMENTS.  This
Agreement represents the complete agreement between the Investor and each
Stockholder, and there are no additional or side agreements between the Investor
and any Stockholder with respect to any matter referenced herein.

               (d)  NO REGISTRATION REQUIREMENT.  No registration under the
Securities Act (as defined below) is required in connection with the grant of
the Option or the sale of Subject Shares pursuant to the exercise of the Option.

          4.   COVENANTS OF EACH STOCKHOLDER.

               Each Stockholder, severally and not jointly, agrees, subject to
the terms and conditions of this Agreement, as follows:

               (a)  In connection with any closing of a purchase and sale
pursuant to the exercise of an Option, each Stockholder agrees to deliver to the
Escrow Agent promptly after receipt of a notice of exercise, all certificates
evidencing the Subject Shares held by such Stockholder, duly endorsed in blank
for transfer, or accompanied by stock powers and such other documents as may be
necessary in the Investor's judgment to transfer record ownership of the Subject
Shares being sold pursuant to such exercise to or as directed by the Investor.

               (b)  At any meeting of stockholders of the Company called to vote
upon the Merger and the Merger Agreement or at any adjournment thereof or in any
other circumstances upon which a vote, consent or other approval (including by
written consent) with respect to the Merger and the Merger Agreement is sought,
the Stockholder shall vote (or cause to be voted) the Subject Shares (except for
the Series D Stock, unless it shall first have been converted into Common Stock)
in favor of the Merger and the adoption by the Company of the Merger Agreement.

               (c)  At any meeting of stockholders of the Company or at any
adjournment thereof or in any other circumstances upon which the Stockholder's
vote, consent or other approval is sought, the Stockholder shall vote (or cause
to be voted) the Subject Shares (except for the Series D Stock, unless it shall
first have been converted into Common Stock) against (i) any Alternative
Transaction as such term is defined in Section 5.2 of the Merger Agreement, (ii)
any amendment of the Company's certificate of incorporation or by-laws or other
proposal or transaction involving the Company, which amendment or other proposal
or transaction would be reasonably likely to impede, frustrate, prevent or
nullify the Merger, the Merger Agreement or any of the other transactions
contemplated by the Merger Agreement or change in any manner the voting rights
of any class of Company Common Stock, or


                                       -5-
<PAGE>

(iii) any action that would cause the Company to breach any representation,
warranty or covenant contained in the Merger Agreement.  Subject to Section 11,
the Stockholder further agrees not to enter into any agreement or take any
action inconsistent with the foregoing.

               (d)  The Stockholder shall not, prior to the earliest of (i) the
Effective Time and (ii) the termination of this Agreement in accordance with its
terms, (A) sell, transfer, give, pledge, assign or otherwise dispose of
(including by gift) (collectively, "TRANSFER"), or consent to any Transfer of,
any or all of such Subject Shares or any interest therein or enter into any
contract, option or other arrangement (including any profit sharing arrangement)
with respect to the Transfer of, the Subject Shares to any person (unless such
person agrees in writing to be bound by all of the terms of this Agreement and
written notice of such Transfer is given promptly to Investor) other than
pursuant to the terms of the Merger or (B) enter into any voting arrangement,
directly or indirectly, whether by proxy, voting agreement or otherwise, in
respect of the Subject Shares, and the Stockholder agrees not to commit or agree
to take any of the foregoing actions.

               (e)  Subject to the terms of Section 11, during the term of this
Agreement, the Stockholder shall not, nor shall it permit any investment banker,
financial advisor, attorney, accountant or other representative retained by it,
to, directly or indirectly, (i) solicit, initiate or encourage (including by way
of furnishing information), or take any other action to facilitate, any
inquiries or the making of any proposal that may lead to an Alternative
Transaction or (ii) participate in any discussions or negotiations regarding any
proposed Alternative Transaction.

               (f)  [intentionally left blank]

               (g)  Such Stockholder, and any beneficiary of a revocable trust
for which such Stockholder serves as trustee, shall not take any action to
revoke or terminate such trust or take any other action which would restrict,
limit or frustrate in any way the transactions contemplated by this Agreement.

               (h)  Each Stockholder agrees that to the extent he or it receives
notice, pursuant to Section 2, of Investor's exercise of its Option, he or it
will, in accordance with applicable law, promptly (x) convert such shares of
Preferred Stock owned by it into Common Stock (provided that any such conversion
shall be contemporaneous with the purchase pursuant to such exercise of the
Option) and (y) exercise such Warrants and Company Stock Options owned by it.
With respect to Warrants and Company Stock Options that are not exercised prior
to the Effective Time, it is agreed that each Stockholder shall be entitled to a
"cashless net proceeds"


                                       -6-
<PAGE>

exercise of such Warrants and Company Stock Options at the Effective Time.

          5.   GRANT OF IRREVOCABLE PROXY; APPOINTMENT OF PROXY.

               Each Stockholder hereby irrevocably grants to, and appoints, the
Investor and Josh Harris, in his capacity as an officer of the Investor, and any
individual who shall hereafter succeed to any such office of the Investor, such
Stockholder's proxy and attorney-in-fact (with full power of substitution), for
and in the name, place and stead of such Stockholder, (i) to vote such
Stockholder's Subject Shares (except for the Series D Stock, unless it shall
first have been converted into Common Stock), or grant a consent or approval
with respect to the Merger and the adoption by the Company of the Merger
Agreement and (ii) to vote such Stockholder's Subject Shares (except for the
Series D Stock, unless it shall first have been converted into Common Stock),
against (x) any Alternative Transaction, as such term is defined in Section 5.2
of the Merger Agreement, (y) any amendment of the Company's certificate of
incorporation or by-laws or other proposal or transaction involving the Company,
which amendment or other proposal or transaction would be reasonably likely to
impede, frustrate, prevent or nullify the Merger, the Merger Agreement or any of
the other transactions contemplated by the Merger Agreement or change in any
manner the voting rights of any class of Company Common Stock, or (z) any action
that would cause the Company to breach any representation, warranty or covenant
contained in the Merger Agreement.  The proxy granted pursuant to this Section
(i) shall not affect the Stockholder's ability to make an election, pursuant to
the terms and conditions of the Merger Agreement, to receive cash or stock as
consideration in the Merger, (ii) shall terminate upon the termination of this
Agreement pursuant to Section 9 and (iii) is subject to the Investor's
compliance with Section 14.

               (a)  Each Stockholder represents that there are no proxies
heretofore given in respect of such Stockholder's Subject Shares.

               (b)  Each Stockholder hereby affirms that each irrevocable proxy
granted pursuant to this Section 5 is given in connection with the execution of
the Merger Agreement, and that each such irrevocable proxy is given to secure
the performance of the duties of the Stockholder under this Agreement.  Such
Stockholder hereby further affirms that each such irrevocable proxy is coupled
with an interest and may under no circumstances be revoked.  Each Stockholder
hereby ratifies and confirms all that the holder of each irrevocable proxy may
lawfully do or cause to be done by virtue hereof.  Each such irrevocable proxy
is executed and intended to be irrevocable in accordance with the provisions of
Section


                                       -7-
<PAGE>

212(e) of the Delaware General Corporation Law (the "DGCL"); provided, that each
such irrevocable proxy shall terminate upon termination of this Agreement
pursuant to Section 9.

          6.   FURTHER ASSURANCES.

               Each Stockholder will, at the Investor's expense, from time to
time, execute and deliver, or cause to be executed and delivered, such
additional or further consents, documents and other instruments as the Investor
may reasonably request for the purpose of effectively carrying out the
transactions contemplated by this Agreement.

          7.   CERTAIN EVENTS.

               Each Stockholder agrees that this Agreement and the obligations
hereunder shall attach to such Stockholder's Subject Shares and shall be binding
upon any person or entity to which legal or beneficial ownership of such Subject
Shares shall pass, whether by operation of law or otherwise, including without
limitation such Stockholder's heirs, guardians, administrators or successors.
In the event of any stock split, stock dividend, merger, reorganization,
recapitalization or other change in the capital structure of the Company
affecting the Company Common Stock, or the acquisition of additional shares of
Company Common Stock or other voting securities of the Company by any
Stockholder, the number of Subject Shares listed in Schedule A beside the name
of such Stockholder shall be adjusted appropriately and this Agreement and the
obligations hereunder shall attach to any additional shares of Company Common
Stock or other voting securities of the Company issued to or acquired by such
Stockholder.

          8.   ASSIGNMENT.

               Neither this Agreement nor any of the rights, interests or
obligations hereunder shall be assigned by any of the parties without the prior
written consent of the other parties, except that (i) the Investor may assign
any or all of its rights, interests and obligations hereunder to the extent it
assigns its rights, interests or obligations pursuant to Section 9.7 of the
Merger Agreement, and (ii) the Investor may assign, in its sole discretion, any
and all of its rights, interests and obligations hereunder to any direct or
indirect wholly owned subsidiary of the Investor, provided that the Investor
will continue to remain primarily liable for its obligations hereunder in the
event of any assignment pursuant to this clause (ii).  Subject to the preceding
sentence, this Agreement will be binding upon, inure to the benefit of and be
enforceable by the parties and their respective successors and permitted
assigns.

          9.   TERM; TERMINATION.


                                       -8-
<PAGE>

               This Agreement shall become effective upon execution and delivery
by all of the parties hereto (provided that Investor has received options from
the parties hereto and, if applicable, the Company to purchase more than 50% of
the Common Stock, on a fully diluted basis), and this Agreement and all rights
and obligations of the parties hereunder, shall terminate on the earlier of (a)
December 31, 1997 (unless a notice pursuant to Section 2 shall have been sent
within 10 business days prior to such date and the sale of Shares pursuant to
such notice shall not have been consummated), (b) the date on which the Merger
Agreement is terminated in accordance with its terms, unless within 15 business
days of such date the Investor delivers the notice in connection with the Option
as set forth in Section 2; provided, however, that if, in such event, the
Investor sells, or agrees to sell, any Shares acquired pursuant to the exercise
of the Option within 60 days of the date of such exercise, all proceeds from
such sale in excess of $11.00 per Share shall be paid by the Investor to the
Stockholders pro rata, based on their percentage ownership of Subject Shares
(with Series D Stock deemed converted to Common Stock for this purpose), (c)
subject to clause (b) above, the date on which a notice of termination is
delivered by the Investor to the Stockholders or (d) the date on which the
Investor breaches any of the covenants set forth in Section 14.

          10.  GENERAL PROVISIONS.

               (a)  AMENDMENTS.  This Agreement may not be amended except by an
instrument in writing signed by each of the parties hereto.

               (b)  NOTICE.  All notices and other communications hereunder
shall be in writing and shall be deemed given when delivered by facsimile (with
confirmation of delivery) or personally or sent by overnight courier (providing
proof of delivery) to the Investor in accordance with Section 9.2 of the Merger
Agreement and to the Stockholders at their respective addresses and facsimile
numbers set forth on Schedule A attached hereto (or at such other address and
facsimile number for a party as shall be specified by like notice).

               (c)  INTERPRETATION. When a reference is made in this Agreement
to an Article or a Section, such reference shall be deemed made to an Article or
a Section of this Agreement, unless otherwise indicated.  The headings contained
in this Agreement are for reference purposes only and shall not affect in any
way the meaning or interpretation of this Agreement.  Unless the context
otherwise requires, words importing the singular shall include the plural, and
vice versa. Wherever the words "include," "includes" or "including" are used in
this Agreement, they shall be deemed to be followed by the words "without
limitation."  Capitalized terms


                                       -9-
<PAGE>

used and not otherwise defined in this Agreement shall have the respective
meanings assigned to them in the Merger Agreement.

               (d)  COUNTERPARTS.  This Agreement may be executed in one or more
counterparts, all of which shall be considered one and the same agreement, and
shall become effective when one or more of the counterparts have been signed by
each of the parties and delivered to the other party, it being understood that
each party need not sign the same counterpart.

               (e)  ENTIRE AGREEMENT; NO THIRD-PARTY BENEFICIARIES.  This
Agreement (including the documents and instruments referred to herein) (i)
constitutes the entire agreement and supersedes all prior agreements and
understandings, both written and oral, among the parties with respect to the
subject matter hereof and (ii) is not intended to confer upon any person other
than the parties hereto any rights or remedies hereunder.

               (f)  GOVERNING LAW.  This Agreement shall be governed by, and
construed in accordance with, the laws of the State of Delaware regardless of
the laws that might otherwise govern under applicable principles of conflicts of
law thereof.

               (g)  VOIDABILITY.  If prior to the execution hereof, the Board of
Directors of the Company shall not have duly and validly authorized and approved
by all necessary corporate action, this Agreement, the Merger Agreement and the
transactions contemplated hereby and thereby, so that by the execution and
delivery hereof the Investor would become, or could reasonably be expected to
become an "interested stockholder" with whom the Company would be prevented for
any period pursuant to Section 203 of the DGCL from engaging in any "business
combination" (as such terms are defined in Section 203 of the DGCL), then this
Agreement shall be void and unenforceable until such time as such authorization
and approval shall have been duly and validly obtained.

               (h)  EXPENSES.  Except as otherwise provided herein, all costs
and expenses incurred in connection with the transactions contemplated by this
Agreement shall be paid by the party incurring such expenses.

          11.  STOCKHOLDER CAPACITY.

               No person executing this Agreement who is or becomes during the
term hereof a director or officer of the Company makes any agreement or
understanding herein in his capacity as such director or officer.  Each
Stockholder signs solely in his capacity as the record holder and beneficial
owner of, or the trustee of a trust whose beneficiaries are


                                      -10-
<PAGE>

the beneficial owners of, such Stockholder's Subject Shares and nothing herein
(including, without limitation, the provisions of Section 4(e)) shall limit or
affect any actions taken by a Stockholder in his capacity as an officer or
director of the Company.

          12.  ENFORCEMENT.

               The parties agree that irreparable damage would occur in the
event that any of the provisions of this Agreement were not performed in
accordance with their specific terms or were otherwise breached.  It is
accordingly agreed that the parties shall be entitled to an injunction or
injunctions to prevent breaches of this Agreement and to enforce specifically
the terms and provisions of this Agreement in any court of the United States
located in the State of Delaware or in a Delaware state court, this being in
addition to any other remedy to which they are entitled at law or in equity.  In
addition, each of the parties hereto (i) consents to submit such party to the
personal jurisdiction of any Federal court located in the State of Delaware or
any Delaware state court in the event any dispute arises out of this Agreement
or any of the transactions contemplated hereby, (ii) agrees that such party will
not attempt to deny or defeat such personal jurisdiction by motion or other
request for leave from any such court, (iii) agrees that such party will not
bring any action relating to this Agreement or the transactions contemplated
hereby in any court other than a Federal court sitting in the state of Delaware
or a Delaware state court and (iv) waives any right to trial by jury with
respect to any claim or proceeding related to or arising out of this Agreement
or any of the transactions contemplated hereby.

          13.  PUBLIC ANNOUNCEMENTS.

               Neither the Investor nor any Stockholder shall issue any press
release or make any public statement without the prior written consent of the
other parties hereto, except as may be required by applicable law, court process
or by obligations pursuant to any listing agreement with any national securities
exchange.

          14.  INVESTOR COVENANTS.

               Investor covenants and agrees that without terminating this
Agreement:

               (a)  Neither the Merger Agreement nor this Agreement will be
amended, and no condition in the Merger Agreement will be waived, so as to: (i)
reduce the value of the consideration payable in the Merger, (ii) materially
adversely affect the timing of the closing of the Merger,

                                      -11-
<PAGE>

(iii) reduce the Cash Merger Price, or (iv) otherwise adversely affect the
interests of the Stockholders.

               (b)  Upon its formation, Newco will execute and deliver a joinder
to the Merger Agreement, rendering it a party thereto, and obligating it to
perform thereunder.

               15.  PIGGYBACK REGISTRATION RIGHTS.

                    From and after the Effective Time, the Investor shall cause
the Company to grant to each Stockholder piggyback registration rights (subject
to standard cutbacks) with respect to any offering of Common Stock made by the
Investor that is registered pursuant to the Securities Act of 1933, as amended
(the "Securities Act").  Such piggyback registration rights shall be available
only to the extent that, and so long as, such Stockholder's Subject Shares are
not freely tradable (e.g., subject to Rule 145 or Rule 144) under the Securities
Act.


                                      -12-
<PAGE>

               IN WITNESS WHEREOF, the Investor and the Stockholders have caused
this Agreement to be duly executed and delivered effective as of the date of the
Merger Agreement.

                                   NEWPORT INVESTMENT LLC


                                   By:/s/Michael Gross
                                      -----------------------------
                                      Name: Michael Gross
                                      Title: President


                                   STOCKHOLDERS:



                                   --------------------------------
                                   Print Name of Stockholder



                                   --------------------------------
                                   Signature



                                   -----------------------------------
                                   Name of Authorized Person Signing



                                   -----------------------------------
                                   Title of Authorized Person Signing


                                      -13-
<PAGE>

     IN WITNESS WHEREOF, the Investor and the Stockholders have caused this
Agreement to be duly executed and delivered effective as of the date of the

Merger Agreement.

                                   NEWPORT INVESTMENT LLC


                                   By:
                                      -------------------------------
                                       Name:
                                       Title:


                                   STOCKHOLDERS:

                                   Richard N. Zehner
                                   Richard N. Zehner, Trustee
                                   ----------------------------------
                                   Print Name of Stockholder


                                   /s/Richard N. Zehner
                                   /s/Richard N. Zehner
                                   ----------------------------------
                                   Signature



                                   ----------------------------------
                                   Name of Authorized Person Signing



                                   ----------------------------------
                                   Title of Authorized Person Signing


                                      -14-
<PAGE>

     IN WITNESS WHEREOF, the Investor and the Stockholders have caused this
Agreement to be duly executed and delivered effective as of the date of the
Merger Agreement.

                                   NEWPORT INVESTMENT LLC


                                   By:
                                      -------------------------------
                                       Name:
                                       Title:


                                   STOCKHOLDERS:

                                   Vincent S. Pino, Custodian
                                   Vincent S. Pino
                                   Rosemary G. Pino
                                   ----------------------------------
                                   Print Name of Stockholder

                                   /s/Vincent S. Pino, Custodian
                                   /s/Vincent S. Pino
                                   /s/Rosemary G. Pino
                                   ----------------------------------
                                   Signature

                                   Vincent S. Pino, Custodian

                                   Vincent S. Pino
                                   Rosemary G. Pino
                                   ----------------------------------
                                   Name of Authorized Person Signing


                                   ----------------------------------
                                   Title of Authorized Person Signing


                                      -15-
<PAGE>

     IN WITNESS WHEREOF, the Investor and the Stockholders have caused this
Agreement to be duly executed and delivered effective as of the date of the
Merger Agreement.

                                   NEWPORT INVESTMENT LLC


                                   By:
                                      -------------------------------
                                       Name:
                                       Title:


                                   STOCKHOLDERS:



                                   CIG & Co.
                                   ----------------------------------
                                   Print Name of Stockholder


                                   /s/James R. Kuzemchak
                                   ----------------------------------
                                        Signature


                                   James R. Kuzemchak
                                   ----------------------------------
                                   Name of Authorized Person Signing


                                   Partner
                                   ----------------------------------
                                   Title of Authorized Person Signing


                                   BENEFICIAL OWNERS:

                                   Connecticut General Life Insurance
                                   Company, CIGNA Property and Casualty
                                   Insurance Company, Life Insurance
                                   Company of North America and Century
                                   Indemnity Company

                                   By CIGNA Investments, Inc.

                                   By: /s/James R. Kuzemchak
                                       -----------------------------
                                        Name:  James R. Kuzemchak
                                        Title:  Managing Director

                                      -16-
<PAGE>

     IN WITNESS WHEREOF, the Investor and the Stockholders have caused this
Agreement to be duly executed and delivered effective as of the date of the
Merger Agreement.

                                   NEWPORT INVESTMENT LLC


                                   By:
                                      ------------------------------
                                       Name:
                                       Title:


                                   STOCKHOLDERS:

                                   Meridian Trust Company as Voting
                                   Trustee under Agreement dated
                                   12/29/88


                                   ---------------------------------
                                   Print Name of Stockholder


                                   /s/Hans F. Hass
                                   ---------------------------------
                                   Signature


                                   Hans F. Hass
                                   ---------------------------------
                                   Name of Authorized Person Signing


                                   Assistant Vice President
                                   ---------------------------------
                                   Title of Authorized Person Signing


                                      -17-
<PAGE>

IN WITNESS WHEREOF, the Investor and the Stockholders have caused this Agreement
to be duly executed and delivered effective as of the date of the Merger
Agreement.

                                   NEWPORT INVESTMENT LLC


                                   By:
                                      -----------------------------
                                       Name:
                                       Title:


                                   STOCKHOLDERS:


                                   Northwestern Mutual Life Insurance
                                   Company


                                   ---------------------------------
                                   Print Name of Stockholder

                                   /s/Gary A. Poliner
                                   ---------------------------------
                                   Signature


                                   Gary A. Poliner 
                                   ---------------------------------
                                   Name of Authorized Person Signing


                                   Vice President
                                   ---------------------------------
                                   Title of Authorized Person Signing


                                      -18-
<PAGE>

     IN WITNESS WHEREOF, the Investor and the Stockholders have caused this
Agreement to be duly executed and delivered effective as of the date of the
Merger Agreement.

                                   NEWPORT INVESTMENT LLC


                                   By:
                                      ------------------------------
                                       Name:
                                       Title:


                                   STOCKHOLDERS:

                                   Bedrock Asset Trust I
                                   By: Wilmington Trust Company,
                                   not in its individual capacity
                                   but solely as owner trustee


                                   ---------------------------------
                                   Print Name of Stockholder


                                   /s/Ann E. Roberts
                                   ---------------------------------
                                   Signature

                                   Ann E. Roberts
                                   ---------------------------------
                                   Name of Authorized Person Signing


                                   Senior Financial Services Officer
                                   ---------------------------------
                                   Title of Authorized Person Signing


                                      -19-
<PAGE>

     IN WITNESS WHEREOF, the Investor and the Stockholders have caused this
Agreement to be duly executed and delivered effective as of the date of the
Merger Agreement.

                                   NEWPORT INVESTMENT LLC

                                   By:
                                      ------------------------------
                                       Name:
                                       Title:


                                   STOCKHOLDERS:


                                   THE LINCOLN NATIONAL LIFE
                                   INSURANCE COMPANY
                                   By: Lincoln Investment
                                       Management, Inc., Its
                                       Attorney-in-Fact


                                   ---------------------------------
                                   Print Name of Stockholder


                                   /s/Richard L. Corwin
                                   ---------------------------------
                                   Signature



                                   Richard L. Corwin
                                   ---------------------------------
                                   Name of Authorized Person Signing


                                   Vice President
                                   ---------------------------------
                                   Title of Authorized Person Signing


                                      -20-
<PAGE>

     IN WITNESS WHEREOF, the Investor and the Stockholders have caused this
Agreement to be duly executed and delivered effective as of the date of the
Merger Agreement.

                                   NEWPORT INVESTMENT LLC


                                   By:
                                      ------------------------------

                                       Name:
                                       Title:


                                   STOCKHOLDERS:


                                   THE TRAVELERS INSURANCE COMPANY
                                   ---------------------------------
                                   Print Name of Stockholder


                                   /s/A. William Carnduff
                                   ---------------------------------
                                   Signature


                                   A. William Carnduff

                                   ---------------------------------
                                   Name of Authorized Person Signing


                                   Second Vice President
                                   ---------------------------------
                                   Title of Authorized Person Signing



                                   TRAL & CO, as nominee for the
                                   Travelers Insurance Company

                                   By: /s/ Frank G. Pattison
                                       ---------------------
                                       Attorney-in-Fact


                                      -21-
<PAGE>

     IN WITNESS WHEREOF, the Investor and the Stockholders have caused this
Agreement to be duly executed and delivered effective as of the date of the
Merger Agreement.

                                   NEWPORT INVESTMENT LLC


                                   By:
                                      ------------------------------
                                      Name:
                                      Title:


                                   STOCKHOLDERS:


                                   THE GE FUND
                                   ---------------------------------
                                   Print Name of Stockholder


                                   /s/ Philip D. Ameen
                                   ---------------------------------
                                   Signature


                                   Philip D. Ameen
                                   ---------------------------------
                                   Name of Authorized Person Signing


                                   Attorney-in-Fact
                                   ---------------------------------
                                   Title of Authorized Person Signing
                                   
                                   Consented and agreed to as of the
                                   date first written above:

                                   General Electric Company acting 
                                   through GE Medical Systems

                                   By: /s/ Rick Berger
                                       ---------------
                                   Its: Manager Financial Services

                                   Consented and agreed to as of the
                                   date first written above:

                                   The GE Fund
                                   By: Philip D. Ameer
                                       ---------------
                                   Its: Attorney-in-Fact

                                      -22-
<PAGE>

                                  SCHEDULE 1(b)

          Amended and Restated Standstill Agreement dated as of December 31,
1996, between the Registrant and Connecticut General Life Insurance Company,
CIGNA Property and Casualty Insuance Company, Insurance Company of North America
and Life Insurance Company of North America

Amended and Restated Standstill Agreement, dated as of December 31, 1996,
between Richard N. Zehner and Alliance Imaging, Inc.

          Amended and Restated Standstill Agreement, dated as of December 31,
1996, between each of The Northwestern Mutual Life Insurance Company, The
Travelers Indemnity Company, The Travelers Insurance Company, The Travelers Life
and Annuity Company, The Lincoln National Life Insurance Company and Bedrock
Asset Trust I and Alliance Imaging, Inc.

          Amended and Restated Standstill Agreement, dated as of December 31,
1996, between DLJ Capital Corporation and Alliance Imaging, Inc.

          Voting Trust Agreement between Meridian Trust company, as voting
trustee, and DLJ Capital corporation dated as of December 29, 1988


                                      -23-
<PAGE>

                                   SCHEDULE A

<TABLE>
<CAPTION>


                                                                                NUMBER OF SUBJECT SHARES
                                                               NUMBER OF         PURSUANT TO EXERCISE OF
                                                           SHARES OF COMPANY    COMPANY STOCK OPTIONS AND
          NAME AND ADDRESS         NUMBER OF SHARES OF       COMMON STOCK       WARRANTS
          OF STOCKHOLDER             SERIES D STOCK       BENEFICIALLY OWNED    -------------------------
          --------------             --------------       ------------------
<S>                                <C>                    <C>                   <C>

                                                               257,139*                460,000
       Richard N. Zehner
   -------------------------
              (Name)



      9881 Orchard Lane
   -------------------------
           (Street)



      Villa Park, CA 92667
   -------------------------
       (City, State, Zip)


</TABLE>


*Includes 196,593 shares as community property, 30,273 owned by Matthew Zehner,
a minor son, and 30,273 shares owned by Michelle Zehner, a minor daughter.
Richard N. Zehner is Trustee of the Zehner Children's Trusts for his children.


                                      -24-
<PAGE>

                                   SCHEDULE A

<TABLE>
<CAPTION>

                                                                                    NUMBER OF SUBJECT SHARES
                                                                   NUMBER OF         PURSUANT TO EXERCISE OF
                                                               SHARES OF COMPANY    COMPANY STOCK OPTIONS AND
              NAME AND ADDRESS         NUMBER OF SHARES OF       COMMON STOCK       WARRANTS
               OF STOCKHOLDER            SERIES D STOCK       BENEFICIALLY OWNED    -------------------------
               --------------            --------------       ------------------
<S>                                    <C>                    <C>                   <C>

                                                                  364,045*                 205,025

       Vincent S. and Rosemary G. Pino
   --------------------------------------
                (Name)


            31441 Island Drive
   --------------------------------------
                 (Street)


            Evergreen, CO  80439
   --------------------------------------
             (City, State, Zip)


</TABLE>

*Includes 309,620 shares held as community property, 37,027 in Vincent Pino's 
self-directed IRA account, 3,218 in Rosemary  Pino's self-directed IRA 
account, 7,090 shares owned by Michael Pino, a minor son and 7,090 shares 
owned by Tiffany Pino, a minor daughter.  Mr. Pino is custodian for his minor 
children.

                                      -25-
<PAGE>

                                   SCHEDULE A

<TABLE>
<CAPTION>

                                                                                     NUMBER OF SUBJECT SHARES
                                                                   NUMBER OF         PURSUANT TO EXERCISE OF
                                                                SHARES OF COMPANY    COMPANY STOCK OPTIONS AND
               NAME AND ADDRESS         NUMBER OF SHARES OF       COMMON STOCK       WARRANTS
                OF STOCKHOLDER            SERIES D STOCK       BENEFICIALLY OWNED    --------------------------
                --------------            --------------       ------------------
<S>                                     <C>                    <C>                   <C>

               Bedrock Asset Trust I                                385,150                8,880
   --------------------------------------
                   (Name)



   --------------------------------------
                  (Street)



   --------------------------------------
               (City, State, Zip)


</TABLE>


                                      -26-
<PAGE>

                                   SCHEDULE A

<TABLE>
<CAPTION>

                                                                                      NUMBER OF SUBJECT SHARES
                                                                    NUMBER OF         PURSUANT TO EXERCISE OF
                                                                 SHARES OF COMPANY    COMPANY STOCK OPTIONS AND
                NAME AND ADDRESS         NUMBER OF SHARES OF       COMMON STOCK       WARRANTS
                 OF STOCKHOLDER            SERIES D STOCK       BENEFICIALLY OWNED    --------------------------
                 --------------            --------------       ------------------
<S>                                      <C>                    <C>                   <C>

                  GE Fund                     18,000                3,000,000
                                                                (reflecting convertibility of
   --------------------------------------                           Series D Stock)
                  (Name)


      c/o General Electric Company
          3135 Easton Turnpike
   --------------------------------------
                 (Street)

           Fairfield, CT  06431
   --------------------------------------
            (City, State, Zip)


</TABLE>



                                     -27-
<PAGE>

                                  SCHEDULE A

<TABLE>
<CAPTION>

                                                                                         NUMBER OF SUBJECT SHARES
                                                                       NUMBER OF         PURSUANT TO EXERCISE OF
                                                                   SHARES OF COMPANY    COMPANY STOCK OPTIONS AND
               NAME AND ADDRESS            NUMBER OF SHARES OF       COMMON STOCK       WARRANTS
                OF STOCKHOLDER               SERIES D STOCK       BENEFICIALLY OWNED    --------------------------
                --------------               --------------       ------------------
<S>                                        <C>                    <C>                   <C>

  The Northwestern Mutual Life Insurance
  Company                                                               1,988,200                    41,863
   --------------------------------------
                 (Name)


          720 East Wisconsin Avenue
   --------------------------------------
                (Street)


           Milwaukee, WI  53202
   --------------------------------------
             (City, State, Zip)


</TABLE>



                                      -28-
<PAGE>

                                   SCHEDULE A

<TABLE>
<CAPTION>

                                                                                          NUMBER OF SUBJECT SHARES
                                                                        NUMBER OF          PURSUANT TO EXERCISE OF
                                                                     SHARES OF COMPANY    COMPANY STOCK OPTIONS AND
                 NAME AND ADDRESS            NUMBER OF SHARES OF       COMMON STOCK       WARRANTS
                  OF STOCKHOLDER               SERIES D STOCK       BENEFICIALLY OWNED    -------------------------
                  --------------               --------------       ------------------
 <S>                                         <C>                    <C>                   <C>


   Meridian Trust Company as Voting Trustee                              933,435
 under agreement dated 12/29/88
   --------------------------------------
                    (Name)


                 600 Penn Street
   --------------------------------------
                   (Street)


             Reading, PA  19602
   --------------------------------------
                 (City, State, Zip)

</TABLE>



                                      -29-
<PAGE>

                                   SCHEDULE A


<TABLE>
<CAPTION>

                                                                                       NUMBER OF SUBJECT SHARES
                                                                     NUMBER OF          PURSUANT TO EXERCISE OF
                                                                  SHARES OF COMPANY    COMPANY STOCK OPTIONS AND
              NAME AND ADDRESS            NUMBER OF SHARES OF       COMMON STOCK       WARRANTS
               OF STOCKHOLDER               SERIES D STOCK       BENEFICIALLY OWNED    -------------------------
               --------------               --------------       ------------------
<S>                                       <C>                    <C>                   <C>

                 CIG & Co                                            485,000                   11,200
   --------------------------------------
                 (Name)



   --------------------------------------
                (Street)



   --------------------------------------
              (City, State, Zip)

</TABLE>



                                      -30-
<PAGE>

                                   SCHEDULE A

<TABLE>
<CAPTION>

                                                                                         NUMBER OF SUBJECT SHARES
                                                                     NUMBER OF         PURSUANT TO EXERCISE OF
                                                                  SHARES OF COMPANY    COMPANY STOCK OPTIONS AND
              NAME AND ADDRESS            NUMBER OF SHARES OF       COMMON STOCK       WARRANTS
               OF STOCKHOLDER               SERIES D STOCK       BENEFICIALLY OWNED    
               --------------               --------------       ------------------    ---------------------------
<S>                                       <C>                    <C>                   <C>

     THE TRAVELERS INSURANCE COMPANY                                  431,385                  10,986

   --------------------------------------
                  (Name)

              One Tower Square

   --------------------------------------
                 (Street)

       Hartford, CT  06138-2030
      ATTN:  A. William Carnduff

   --------------------------------------
              (City, State, Zip)

</TABLE>



                                      -31-
<PAGE>

                                   SCHEDULE A


<TABLE>
<CAPTION>

                                                                                            NUMBER OF SUBJECT SHARES
                                                                        NUMBER OF         PURSUANT TO EXERCISE OF
                                                                     SHARES OF COMPANY    COMPANY STOCK OPTIONS AND
                 NAME AND ADDRESS            NUMBER OF SHARES OF       COMMON STOCK       WARRANTS
                  OF STOCKHOLDER               SERIES D STOCK       BENEFICIALLY OWNED    
                  --------------               --------------       ------------------    ---------------------------
   <S>                                       <C>                    <C>                   <C>

        THE TRAVELERS INDEMNITY COMPANY                                  372,123                 9,501
   --------------------------------------
                     (Name)

                One Tower Square

   --------------------------------------
                    (Street)


          Hartford, CT  06138-2030
         Attn:  A. William Carnduff
   --------------------------------------
             (City, State, Zip)

</TABLE>



                                      -32-
<PAGE>

                                   SCHEDULE A


<TABLE>
<CAPTION>

                                                                                            NUMBER OF SUBJECT SHARES
                                                                        NUMBER OF         PURSUANT TO EXERCISE OF
                                                                     SHARES OF COMPANY    COMPANY STOCK OPTIONS AND
                 NAME AND ADDRESS            NUMBER OF SHARES OF       COMMON STOCK       WARRANTS
                  OF STOCKHOLDER               SERIES D STOCK       BENEFICIALLY OWNED    
                  --------------               --------------       ------------------    ---------------------------
   <S>                                       <C>                    <C>                   <C>

    THE TRAVELERS LIFE AND ANNUITY COMPANY                               195,620                   4,884
   --------------------------------------
                     (Name)


                 One Tower Square

   --------------------------------------
                    (Street)

             Hartford, CT  06138-2030
            Attn:  A. William Carnduff

   --------------------------------------
               (City, State, Zip)

</TABLE>



                                      -33-
<PAGE>

                                   SCHEDULE A


<TABLE>
<CAPTION>

                                                                                            NUMBER OF SUBJECT SHARES
                                                                        NUMBER OF         PURSUANT TO EXERCISE OF
                                                                     SHARES OF COMPANY    COMPANY STOCK OPTIONS AND
                 NAME AND ADDRESS            NUMBER OF SHARES OF       COMMON STOCK       WARRANTS
                  OF STOCKHOLDER               SERIES D STOCK       BENEFICIALLY OWNED    
                  --------------               --------------       ------------------    --------------------------
 <S>                                         <C>                    <C>                   <C>


 The Lincoln National Life Insurance Company                              537,285                  12,686
   --------------------------------------
                     (Name)

          200 E. Berry Street (2R-02)

   --------------------------------------
                    (Street)


             Fort Wayne, IN  46802
   --------------------------------------
                 (City, State, Zip)

</TABLE>


                                      -34-


<PAGE>

                                                                  Execution Copy







                             AGREEMENT AND PLAN OF MERGER
                                           
                                           
                                           
                                       BETWEEN
                                           
                                           
                                           
                               NEWPORT INVESTMENT LLC,
                                           
                                           
                                         AND
                                           
                                           
                                ALLIANCE IMAGING, INC.
                                           
                                           
                                           
                                           
                                           
                                           
                                           
                                           
                                           
                                           
                              DATED AS OF JULY 23, 1997
                                           
<PAGE>

                                  TABLE OF CONTENTS
                                  -----------------

                                                                       PAGE
                                                                       ----

         ARTICLE I THE MERGER......................................      2

              1.1  The Merger......................................      2

              1.2  Consummation of the Merger......................      2

              1.3  Effects of the Merger...........................      2

              1.4  Certificate of Incorporation and Bylaws.........      2

              1.5  Directors and Officers..........................      3

              1.6  Company Actions.................................      3

         ARTICLE II EFFECTS OF THE MERGER..........................      3

              2.1  Stockholders' Meeting...........................      3

              2.2  Retained Share Elections........................      4

              2.3  Conversion of Shares............................      5

              2.4  Proration.......................................      6

              2.5  Conversion of Common Stock of Newco.............      7

              2.6  Exchange of Certificates........................      7

         ARTICLE III REPRESENTATIONS AND WARRANTIES OF THE
              COMPANY..............................................      9

              3.1  Organization....................................      9

              3.2  Capitalization..................................     10

              3.3  Subsidiaries....................................     11

              3.4  Authority.......................................     12

              3.5  Consents and Approvals; No Violations...........     12

                                          i

<PAGE>

                                                                       PAGE
                                                                       ----

              3.6  SEC Documents; Financial Statements; Other
                   Financial Information...........................     13

              3.7  Information Supplied............................     14

              3.8  Absence of Certain Changes or Events............     15

              3.9  Litigation......................................     15

              3.10 Contracts.......................................     16

              3.11 Compliance with Laws............................     16

              3.12 Environmental Matters...........................     17

              3.13 Absence of Changes in Benefit Plans; Labor
                   Relations.......................................     18

              3.14 Employment Matters; Affiliate Transactions......     19

              3.15 ERISA Compliance................................     19

              3.16 Taxes...........................................     21

              3.17 [Intentionally Omitted].........................     22

              3.18 Title to Properties; Condition of Assets........     22

              3.19 Intellectual Property...........................     23

              3.20 Non-Compete.....................................     23

              3.21 Voting Requirements.............................     24

              3.22 State Takeover Statutes.........................     24

              3.23 Brokers; Schedule of Fees and Expenses..........     24

              3.24 Opinion of Financial Advisor....................     24

              3.25 Certain Additional Regulatory Matters...........     25

              3.26 Medicare/Medicaid Participation;
                   Accreditation...................................     26

                                          ii

<PAGE>

                                                                       PAGE
                                                                       ----

              3.27 Regulated Customers.............................     27

              3.28 Insurance.......................................     27

         ARTICLE IV REPRESENTATIONS AND WARRANTIES OF INVESTOR AND
              NEWCO................................................     27

              4.1  Organization....................................     27

              4.2  Authority.......................................     28

              4.3  Consents and Approvals; No Violations...........     28

              4.4  Information Supplied............................     29

              4.5  Interim Operations of Newco.....................     29

              4.6  Brokers.........................................     29

              4.7  Financing.......................................     29

         ARTICLE V COVENANTS.......................................     30

              5.1  Conduct of Business.............................     30

              5.2  No Solicitation.................................     32

              5.3  Certain Tax Matters.............................     34

              5.4  Other Actions...................................     34

              5.5  Advice of Changes; Filings......................     34

              5.6  Financial Information...........................     35

              5.7  Redemption of Preferred Stock and Senior
                   Debt............................................     35

              5.8  Refinancing of Outstanding Indebtedness.........     35

              5.9  Matters Involving SMT ..........................     35

              5.10 Insurance.......................................     37

         ARTICLE VI ADDITIONAL AGREEMENTS..........................     37

                                         iii

<PAGE>

                                                                       PAGE
                                                                       ----

              6.1  Preparation of Proxy Statement/Prospectus.......     37

              6.2  Access to Information; Confidentiality..........     38

              6.3  Reasonable Efforts; Notification................     38

              6.4  Stock Option Plans and Warrants.................     40

              6.5  Indemnification, Exculpation....................     40

              6.6  Registration Rights Agreement...................     41

              6.7  [Intentionally Omitted].........................     41

              6.8  Directors.......................................     41

              6.9  Fees and Expenses...............................     41

              6.10 Public Announcements............................     43

              6.11 Stop Transfer...................................     44

         ARTICLE VII CONDITIONS....................................     44

              7.1  Conditions to Each Party's Obligation to Effect
                   the Merger......................................     44

              7.2  Conditions to the Company's Obligation To Effect
                   the Merger......................................     45

              7.3  Conditions to Investor's and Newco's Obligations
                   to Effect the Merger............................     45

         ARTICLE VIII TERMINATION AND AMENDMENT....................     47

              8.1  Termination.....................................     47

              8.2  Effect of Termination...........................     49

              8.3  [Intentionally Omitted].........................     49

              8.4  Extension; Waiver...............................     49

              8.5  Amendment.......................................     49

                                          iv
<PAGE>

                                                                       PAGE
                                                                       ----

         ARTICLE IX MISCELLANEOUS..................................     50

              9.1  Nonsurvival of Representations, Warranties and
                   Agreements......................................     50

              9.2  Notices.........................................     50

              9.3  Interpretation..................................     51

              9.4  Entire Agreement; Third Party Beneficiaries.....     52

              9.5  Governing Law...................................     52

              9.6  Counterparts....................................     52

              9.7  Assignment......................................     52

              9.8  Enforcement.....................................     52

              Signature Page........................................    54
              Exhibit and Schedule Index............................    55
              Exhibits
              Schedules

                                          v

<PAGE>

         AGREEMENT AND PLAN OF MERGER (this "AGREEMENT") dated as of July 23,
1997, between NEWPORT INVESTMENT LLC, a Delaware limited liability company
("INVESTOR"), and ALLIANCE IMAGING, INC., a Delaware corporation (the
"COMPANY").

    WHEREAS, the Board of Directors of the Company has determined that it is
fair and in the best interests of its stockholders for a corporation to be
formed, and wholly-owned, by Investor, to merge with and into the Company (the
"MERGER") pursuant to Section 251 of the Delaware General Corporation Law
("DGCL") upon the terms and subject to the conditions set forth herein;

    WHEREAS, the Board of Directors of the Company has adopted resolutions
approving the Merger, this Agreement and the transactions to which the Company
is a party contemplated hereby, and has agreed, upon the terms and subject to
the conditions set forth herein, to recommend that the Company's stockholders
approve the Merger and this Agreement;

    WHEREAS, the parties have agreed (subject to the terms and conditions of
this Agreement), as soon as practicable following the approval by the
stockholders of the Company, to effect the Merger, as more fully described
herein;

    WHEREAS, it is intended that the Merger be treated as a recapitalization of
the Company for financial reporting purposes;

    WHEREAS, concurrently with the execution of this Agreement and as an
inducement to Investor to enter into this Agreement, Investor and certain
stockholders of the Company are entering into a Stockholder Agreement (the
"STOCKHOLDER AGREEMENT") pursuant to which such stockholders have, among other
things, granted to Investor an irrevocable proxy to vote their Shares (as
hereinafter defined) in favor of the Merger and all other actions necessary to
consummate the Merger, upon the terms and subject to the conditions set forth in
the Stockholder Agreement;

    WHEREAS, concurrently with the execution of this Agreement and as an
inducement to Investor to enter into this Agreement, the Company and certain
members of the Company's senior management are executing and delivering the
Employment Agreements, in substantially the form attached hereto as EXHIBIT A
(the "EMPLOYMENT AGREEMENTS") pursuant to which such persons have, among other
things, agreed to certain confidentiality and non-solicitation covenants; and

    WHEREAS Investor and the Company desire to make certain representations,
warranties, covenants and agreements in connection with the Merger and also to
prescribe various conditions to the Merger.

    NOW, THEREFORE, in consideration of the foregoing and the mutual covenants
and agreements herein contained, and intending to be legally bound hereby,
Investor and the Company hereby agree as follows:

<PAGE>

                                      ARTICLE I

                                      THE MERGER

1.1 THE MERGER.

    Prior to the Effective Time (as defined below), Investor shall form a new
corporation to be called Newport Acquisition Corp. ("Newco") in accordance with
the relevant provisions of the DGCL.  Upon the terms and subject to the
conditions hereof, and in accordance with the relevant provisions of the DGCL,
Newco shall be merged with and into the Company as soon as practicable following
the satisfaction or waiver, if permissible, of the conditions set forth in
Article VII hereof.  The Company shall be the surviving corporation in the
Merger (the "SURVIVING CORPORATION") and shall continue its existence under the
laws of Delaware.  The separate corporate existence of Newco shall cease.

1.2 CONSUMMATION OF THE MERGER.

    Subject to the provisions of this Agreement, the parties hereto shall cause
the Merger to be consummated by filing with the Secretary of State of the State
of Delaware a duly executed and verified certificate of merger, as required by
the DGCL, and shall take all such other and further actions as may be required
by law to make the Merger effective as promptly as practicable.  Prior to the
filing referred to in this Section, a closing (the "CLOSING") will be held at
the offices of O'Sullivan Graev & Karabell, LLP, 30 Rockefeller Plaza, 41st
Floor, New York, New York (or such other place as the parties may agree) for the
purpose of confirming all the foregoing.  The time the Merger becomes effective
in accordance with applicable law is referred to as the "EFFECTIVE TIME."

1.3 EFFECTS OF THE MERGER.

    The Merger shall have the effects set forth in the applicable provisions of
the DGCL and set forth herein.

1.4 CERTIFICATE OF INCORPORATION AND BYLAWS.

    (a)  The Restated Certificate of Incorporation of the Company (the
"CERTIFICATE OF INCORPORATION"), as in effect immediately prior to the Effective
Time, shall be the certificate of incorporation of the Surviving Corporation
until thereafter changed or amended as provided therein or by applicable law.

    (b)  The by-laws of Newco (the "BY-LAWS") as in effect immediately prior to
the Effective Time shall be the by-laws of the Surviving Corporation, until
thereafter changed or amended as provided therein or by applicable law.

                                         -2-
<PAGE>

1.5 DIRECTORS AND OFFICERS.

    The directors of Newco immediately prior to the Effective Time and the
officers of the Company immediately prior to the Effective Time shall be the
directors and officers, respectively, of the Surviving Corporation until their
respective successors are duly elected and qualified.

1.6 COMPANY ACTIONS.

    The Company hereby represents and warrants that (a) its Board of Directors
(at a meeting duly called and held), has (i) determined that the Merger (upon
the terms and subject to the conditions of this Agreement) is fair to and in the
best interests of the stockholders of the Company, (ii) resolved to approve this
Agreement, the Merger, the issuance of shares of common stock of the Company,
par value $0.01 per share (the "SHARES") to the Investor as sole shareholder of
Newco in connection with the Merger, and to recommend (subject to Section 5.2 of
this Agreement) approval of the Merger and this Agreement by the stockholders of
the Company, (iii) taken all necessary steps to render Section 203 of the DGCL
inapplicable to the Merger and the transactions contemplated by this Agreement,
and (iv) resolved to elect not to be subject, to the extent permitted by law, to
any state takeover law other than Section 203 of the DGCL that may purport to be
applicable to the Merger, or the transactions contemplated by this Agreement,
and (b) Salomon Brothers Inc (the "FINANCIAL ADVISOR") has advised the Company's
Board of Directors that, in its opinion, the consideration to be received and
retained by the Company's stockholders in the Merger is fair, from a financial
point of view, to such stockholders.


                                      ARTICLE II

                                EFFECTS OF THE MERGER


2.1 STOCKHOLDERS' MEETING.

    (a)  Subject to Section 5.2 of this Agreement, the Company, acting through
its Board of Directors, shall, in accordance with applicable law, duly call,
give notice of, convene and hold a special meeting (the "SPECIAL MEETING") of
its stockholders as soon as practicable for the purpose of obtaining the
approval of this Agreement, include in the registration statement on Form S-4
that includes a proxy statement relating to any required approval by or meeting
of the Company's stockholders with respect to this Agreement and the Merger (the
"PROXY STATEMENT/PROSPECTUS") for use in connection with the Special Meeting,
the recommendation of the Company's Board of Directors that stockholders of the
Company vote in favor of the Merger and approve this Agreement.  The Investor
and, subject to Section 5.2 of this Agreement, the Company agree to use
commercially reasonable efforts to cause the Special Meeting to occur as soon as
possible under applicable law and the Company's Bylaws after the Company has 

                                         -3-
<PAGE>

responded to all SEC comments with respect to the preliminary Proxy Statement/
Prospectus as provided in Section 6.1.

    (b)  Prior to the mailing of the Proxy Statement/Prospectus, Newco shall
appoint an independent bank or trust company to act as paying agent (the "PAYING
AGENT"), which Paying Agent shall be reasonably satisfactory to the Company, for
the payment of the cash portion of the Merger Consideration.

2.2 RETAINED SHARE ELECTIONS.

    (a)  Each person who is a record holder of Shares on or prior to 5:00 p.m.,
New York City time, on the date of the Special Meeting or the date of any
meeting of stockholders held pursuant to any adjournment of the Special Meeting
(the "ELECTION DATE") will be entitled, with respect to all or any portion of
his or its Shares, to make an election to retain Shares as set forth in, and
subject to the provisions of this Section 2.2.

    (b)  The Company shall prepare and mail a form of election, which form
shall be subject to the approval of Investor (the "ELECTION FORM"), with the
Proxy Statement/Prospectus to the record holders of Shares as of the record date
for the Special Meeting, which Election Form shall be used by each record holder
of Shares who wishes to elect to retain Shares in lieu of such Shares being
converted into the right to receive the Cash Merger Price (as defined below) for
each such Share.  Notwithstanding anything to the contrary contained in this
Agreement, any such election shall be subject to proration as set forth below. 
The Company will use commercially reasonable efforts to make the Election Form
and the Proxy Statement/Prospectus available to all persons who become holders
of Shares during the period between such record date and the Election Date.  Any
such holder's election to retain Shares shall have been validly made only if the
Paying Agent shall have received at its designated office, on or prior to the
Election Date, an Election Form properly completed and signed in accordance with
such rules as the Paying Agent may establish pursuant to Section 2.2(e), and
accompanied by either (i) certificates for the Shares to which such Election
Form relates, duly endorsed in blank or otherwise in form acceptable for
transfer on the books of the Company or (ii) an appropriate guarantee of
delivery of such certificates as set forth in such Election Form from a firm
which is a member of a registered national securities exchange or of the
National Association of Securities Dealers, Inc., or a commercial bank or trust
company having an office or correspondent in the United States (a "NOTICE OF
GUARANTEED DELIVERY").  Notwithstanding anything to the contrary contained
herein, any Election Form accompanied by a Notice of Guaranteed Delivery shall
be deemed not validly made if the certificate or certificates are in fact
delivered to the Paying Agent after three (3) Nasdaq Stock Market trading days
after the date of execution of such guarantee of delivery.

    (c)  Any Election Form may be revoked by the stockholder submitting such
Election Form if a written notice of revocation is received by the Paying Agent
prior to 5:00 p.m., New York City time, on the Election Date.  In addition, all 

                                         -4-
<PAGE>

Election Forms shall be revoked automatically if this Agreement is terminated
pursuant to Section 8.1.  If an Election Form is revoked, the certificate or
certificates (or guarantees of delivery, as appropriate) for the Shares to which
such Election Form relates shall be returned by the Paying Agent to the
stockholder submitting the same to the Paying Agent.

    (d)  For purposes of this Agreement, (i) "ELECTED RETAINED SHARE" shall
mean a Share in respect of which an election to retain such Share is validly
made and not validly revoked prior to the Election Date and (ii) "ELECTED CASH
SHARE" shall mean a Share in respect of which either an election to retain such
Share is not validly made prior to the Election Date or an election to retain
such Share is validly revoked prior to the Election Date.

    (e)  The Paying Agent may, with the mutual agreement of the Investor and
the Company, make such rules as are consistent with this Section 2.2 for the
implementation of the elections provided for herein as shall be necessary or
desirable fully to effect such elections.

    (f)  The Paying Agent shall determine (i) whether or not elections to
retain Shares have been validly made or validly revoked pursuant to this
Section 2.2 and (ii) when elections and revocations have been received by it. 
If the Paying Agent determines that any election to retain Shares was not
validly made, such Shares shall be converted in the Merger into the right to
receive the Cash Merger Price (as defined below).  The Paying Agent shall also
make all computations as to the allocation and the proration contemplated by
Section 2.4.  All determinations and calculations by the Paying Agent shall be
conclusive and binding on the holders of Shares. 

2.3 CONVERSION OF SHARES.

    (a)  All Shares held in the treasury of the Company (the "EXCLUDED SHARES")
shall be canceled and shall cease to exist as of the Effective Time, without any
consideration being payable therefore.

    (b)  Notwithstanding anything in this Agreement to the contrary, Shares
which would otherwise constitute Elected Cash Shares or Non-Elected Cash Shares
hereunder, which are issued and outstanding immediately prior to the Effective
Time and which are held by stockholders who did not vote in favor of the Merger
and who comply with all of the relevant provisions of Section 262 of the DGCL
(the "DISSENTING SHARES") shall not be converted into or be exchangeable for the
right to receive the Cash Merger Price (as defined below), but instead shall be
converted into the right to receive payment from the Surviving Corporation with
respect to such Dissenting Shares in accordance with the DGCL, unless and until
such holders shall have effectively withdrawn or lost their rights to appraisal
under the DGCL.  If any such holder shall have effectively withdrawn or lost
such right, such holder's Shares shall be converted into the right to receive
the Cash Merger Price (as defined below).  The Company shall give prompt notice
to the Investor of any demands received by the Company for 

                                         -5-
<PAGE>

appraisal of Shares, and the Investor shall have the right to participate in and
direct all negotiations and proceedings with respect to such demands.  The
Company shall not, except with the prior written consent of the Investor, make
any payment with respect to, or settle or offer to settle, any such demands.

    (c)  By virtue of the Merger, each Share issued and outstanding immediately
prior to the Effective Time, other than Excluded Shares and Dissenting Shares,
shall be retained or converted into the right to receive cash as follows:

         (i)  Each Share that is an Elected Retained Share and each Share that
    is a Non-Elected Retained Share (as defined in Section 2.4(c)) (in either
    case, a "RETAINED SHARE") shall be retained by the holder thereof following
    the Effective Time, shall remain outstanding and shall represent one share
    of Common Stock, par value $.01 per share, of the Surviving Corporation;
    and

         (ii) Each Share that is an Elected Cash Share and each Share that is a
    Non-Elected Cash Share (as defined in Section 2.4(b)) shall be converted
    into the right to receive from the Surviving Corporation $11.00 in cash
    (the "CASH MERGER PRICE").

2.4 PRORATION.

    (a)  Notwithstanding anything in this Agreement to the contrary, the
aggregate number of Retained Shares (the "ACTUAL RETAINED SHARE NUMBER") shall
be equal to 727,273 Shares.

    (b)  If the aggregate number of Shares constituting Elected Retained Shares
(the "ELECTED RETAINED SHARE NUMBER") exceeds the Actual Retained Share Number,
then the number of Shares which shall be Retained Shares pursuant to
Section 2.3(c)(i) shall be reduced by such excess number of Shares (each such
Share included among such excess, a "NON-ELECTED CASH SHARE").  In such event,
each holder of Elected Retained Shares shall be allocated Non-Elected Cash
Shares in lieu of Retained Shares such that (after giving effect to Section
2.6(e)) each such holder shall be deemed to hold Non-Elected Cash Shares in an
amount equal to (x) the total number of Elected Retained Shares held by such
holder LESS (y) the product of (A) a fraction, the numerator of which is the
Actual Retained Share Number, and the denominator of which is the Elected
Retained Share Number, multiplied by (B) the total number of Elected Retained
Shares held by such holder.

    (c)  If the Actual Retained Share Number is greater than the Elected
Retained Share Number, then the aggregate number of Shares which shall be
converted into the right to receive cash pursuant to Section 2.3(c)(ii) shall be
decreased by a number of Shares equal to the excess of the Actual Retained Share
Number over the Elected Retained Share Number (each Share included among such
excess, a "NON-ELECTED RETAINED SHARE").  In such event, each holder of Elected
Cash Shares 

                                         -6-
<PAGE>

(other than the Investor) shall be allocated a portion of the Non-Elected
Retained Shares in lieu of Elected Cash Shares (after giving effect to Section
2.6(e)) equal to (i) the number of Elected Cash Shares held by such holder,
multiplied by (ii) a fraction, the numerator of which is the number of
Non-Elected Retained Shares and the denominator of which is the aggregate number
of Elected Cash Shares held by all holders (other than the Investor).

2.5 CONVERSION OF COMMON STOCK OF NEWCO.

    (a)  The shares of common stock, par value $.01 per share ("NEWCO SHARE"),
of Newco, issued and outstanding immediately prior to the Effective Time shall,
by virtue of the Merger and without any action on the part of the holder
thereof, be converted into and become at the Effective Time 3,363,636 shares of
Common Stock of the Surviving Corporation.

    (b)  If the Investor shall purchase Shares prior to the Effective Time
pursuant to the Stockholder Agreement, a number of such Shares, to be determined
in Investor's discretion, may be contributed by the Investor to Newco
immediately prior to the Effective Time and shall be cancelled and shall cease
to exist as of the Effective Time without any consideration being payable
therefor.  Any other Shares purchased by the Investor shall be retained by the
Investor and shall be entitled to receive the Cash Merger Price (but shall not
be treated as Retained Shares).

2.6 EXCHANGE OF CERTIFICATES.

    (a)  As soon as reasonably practicable as of or after the Effective Time of
the Merger, Newco shall deposit with the Paying Agent, for the benefit of the
holders of Shares, for payment in accordance with this Article II, the funds
necessary to pay the Cash Merger Price for each Share.

    (b)  As soon as practicable after the Effective Time of the Merger, each
holder of an outstanding certificate or certificates which prior thereto
represented Shares, upon surrender to the Paying Agent of such certificate or
certificates and acceptance thereof by the Paying Agent, shall be entitled to a
certificate or certificates representing the number of full Retained Shares of
the Surviving Corporation, if any, to be retained by the holder thereof as
Retained Shares pursuant to this Agreement and the amount of cash, if any, into
which the number of Shares previously represented by such certificate or
certificates surrendered shall have been converted pursuant to this Agreement. 
The Paying Agent shall accept such certificates upon compliance with such
reasonable terms and conditions as the Paying Agent may impose to effect an
orderly exchange thereof in accordance with normal exchange practices.  After
the Effective Time of the Merger, there shall be no further transfer on the
records of the Company or its transfer agent of certificates representing Shares
which have been converted, in whole or in part, pursuant to this Agreement, into
the right to receive cash, and if such certificates are presented to the Company
for transfer, they shall be canceled against delivery of such cash.  If any
certificate for Retained Shares is to be issued in, or if cash 

                                         -7-
<PAGE>

is to be remitted to, a name other than that in which the certificate for Shares
surrendered for exchange is registered, it shall be a condition of such exchange
that the certificate so surrendered shall be properly endorsed, with signature
guaranteed or otherwise in proper form for transfer and that the person
requesting such exchange shall pay to the Company or its transfer agent any
transfer or other taxes required by reason of the issuance of certificates for
such Retained Shares in a name other than that of the registered holder of the
certificate surrendered, or establish to the satisfaction of the Company or its
transfer agent that such tax has been paid or is not applicable.  Until
surrendered as contemplated by this Section 2.6(b), each certificate for Shares
shall be deemed at any time after the Effective Time of the Merger to represent
only the right to receive upon such surrender the Cash Merger Price for each
Share (other than any Retained Share) and a new certificate for each Retained
Share, as contemplated by Section 2.1.

    (c)  No dividends or other distributions with respect to Retained Shares
with a record date after the Effective Time of the Merger shall be paid to the
holder of any certificate for Shares not surrendered with respect to the
Retained Shares represented thereby and no cash payment in lieu of fractional
Shares shall be paid to any such holder pursuant to Section 2.6(e) until the
surrender of such certificate in accordance with this Article II.  Subject to
applicable law, following surrender of any such certificate, there shall be paid
to the holder of the certificate representing whole Retained Shares issued in
connection therewith, without interest (i) at the time of such surrender, the
amount of any cash payable in lieu of a fractional retained share to which such
holder is entitled pursuant to Section 2.6(e) and the proportionate amount of
dividends or other distributions with a record date after the Effective Time of
the Merger therefor paid with respect to such Retained Shares, and (ii) at the
appropriate payment date, the proportionate amount of dividends or other
distributions with a record date after the Effective Time of the Merger but
prior to such surrender and a payment date subsequent to such surrender payable
with respect to such whole Retained Shares.

    (d)  All cash paid upon the surrender for exchange of certificates
representing Shares in accordance with the terms of this Article II (including
any cash paid pursuant to Section 2.6(e)) shall be deemed to have been paid in
full satisfaction of all rights pertaining to the Shares exchanged for cash
theretofore represented by such certificates.

    (e)  Notwithstanding any other provision of this Agreement, each holder of
Shares retained pursuant to the Merger who would otherwise have been entitled to
retain a fraction of a Retained Share (after taking into account all Shares
delivered by such holder) shall receive, in lieu thereof, a cash payment
(without interest) equal to such fraction multiplied by the Cash Merger Price.

    (f)  Any cash deposited with the Paying Agent pursuant to this Section 2.6
(the "EXCHANGE FUND") which remains undistributed to the holders of the
certificates representing Shares 180 days after the Effective Time of the Merger
shall be delivered to the Surviving Corporation at such time and any holders of
Shares prior to 

                                         -8-
<PAGE>

the Merger who have not theretofore complied with this Article II shall
thereafter look only to the Surviving Corporation and only as general unsecured
creditors thereof for payment of their claim for cash, if any.

    (g)  None of Newco or the Company or the Paying Agent shall be liable to
any person in respect of any cash from the Exchange Fund delivered to a public
office pursuant to any applicable abandoned property, escheat or similar law. 
If any certificates representing Shares shall not have been surrendered prior to
one year after the Effective Time of the Merger (or immediately prior to such
earlier date on which any cash in respect of such certificate would otherwise
escheat to or become the property of any Governmental Entity (as defined
below)), any such cash in respect of such certificate shall, to the extent
permitted by applicable law, become the property of the Surviving Corporation,
free and clear of all claims or interest of any person previously entitled
thereto.

    (h)  The Paying Agent shall invest any cash included in the Exchange Fund,
as directed by the Investor, on a daily basis.  Any interest and other income
resulting from such investments shall be paid to the Company.  To the extent
that there are losses with respect to such investments, or the Exchange Fund
diminishes for other reasons below the level required to make prompt payments of
the Cash Merger Price as contemplated hereby, Investor shall promptly replace or
restore the portion of the Exchange Fund lost through investments or other
events so as to ensure that the Exchange Fund is, at all times, maintained at a
level sufficient to make such payments.

    (i)  The Company shall pay all charges and expenses of the Paying Agent.


                                     ARTICLE III

                    REPRESENTATIONS AND WARRANTIES OF THE COMPANY


    The Company represents and warrants to Investor and, when formed in
accordance with the terms of this Agreement, Newco, as follows (all schedule
references in this Article III are to the schedules to the Disclosure Statement
provided by the Company to Investor as of the date hereof):

3.1 ORGANIZATION.

    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 carry on its business as now being conducted.  The
Company is duly qualified or licensed to do business and in good standing in
each jurisdiction in which the property owned, leased or operated by it or the
nature of the business conducted by it makes such qualification or licensing
necessary, except in such 

                                         -9-
<PAGE>

jurisdictions where the failure to be so duly qualified or licensed and in good
standing has not had a material adverse effect (as defined in Section 9.3 of
this Agreement) that has not been cured and reasonably would not be expected to
have a material adverse effect or prevent or materially delay the consummation
of the Merger.  The Company has made available to Investor or Newco or their
respective counsel, representatives or advisors, complete and correct copies of
its Certificate of Incorporation and By-laws, as amended to the date hereof.

3.2 CAPITALIZATION.

    The authorized capital stock of the Company consists of 50,000,000 Shares
and 1,000,000 shares of preferred stock, par value $.01 per share ("COMPANY
PREFERRED STOCK"), 4,000 of which are designated as Series C 5% Cumulative
Convertible Redeemable Preferred Stock, par value $.01 per share (the "SERIES C
SHARES"), 18,000 of which are designated as Series D 4% Cumulative Redeemable
Convertible Preferred Stock, par value $.01 per share (the "SERIES D SHARES")
and 9,000 of which are designated as Series E 4% Cumulative Redeemable
Convertible Preferred Stock, par value $.01 per share (the "SERIES E SHARES"
and, collectively with the Series C Shares and the Series D Shares, the
"CONVERTIBLE PREFERRED SHARES").  At the close of business the business day
immediately preceding the date hereof (except, with respect to subclause (d)
below, at the close of business on July 22, 1997), (a) 10,943,138 Shares were
issued and outstanding, (b) no Shares were held by the Company in its treasury,
(c) 1,409,233 Shares were reserved for issuance upon exercise of outstanding
Company Stock Options (as defined in Section 6.4), (d) 79,676 Shares were
issuable upon the conversion of the outstanding Series C Shares, (e) 3,000,000
Shares were issuable upon the conversion of the outstanding Series D Shares,
(f) no Shares were issuable upon the conversion of the outstanding Series E
Shares, (g) 328,900 Shares were issuable upon the exercise of outstanding
Warrants (as defined in Section 6.4), (h) 3,876 Series C Shares were issued and
outstanding, (i) 18,000 Series D Shares were issued and outstanding and (j) no
Series E Shares were issued and outstanding and 9,000 Series E Shares were
reserved for issuance upon the conversion of the Company's Senior Notes (of
which $18,481,867.14 aggregate principal amount is currently outstanding).  The
Senior Notes may be repaid at the option of the Company at any time or from time
to time and, to the extent convertible into Series E Shares, may not be
converted into Series E Shares prior to January 1, 1998.  Except as set forth
above, and except for shares issued since the close of business on the business
day immediately preceding the date hereof upon the exercise of any then
outstanding Company Stock Option or any then outstanding Warrant or upon the
conversion of any then outstanding Convertible Preferred Shares, since such date
no shares of capital stock or other voting securities of the Company were
issued, reserved for issuance, issuable or outstanding.  All outstanding Shares
are, duly authorized, validly issued, fully paid and nonassessable and not
subject to preemptive rights.  Except for the amount of Senior Notes convertible
into Series E Shares (which Series E Shares are convertible into Shares), there
are no bonds, debentures, notes or other indebtedness of the Company having the
right to vote (or convertible into, or exchangeable for, securities having the
right to vote) on any matters on which stockholders of the Company may vote. 
Except 

                                         -10-
<PAGE>

as set forth above, there are no securities, options, warrants, calls, rights,
commitments, agreements, arrangements or undertakings of any kind to which the
Company is a party or by which it is bound obligating the Company to issue,
deliver or sell, or cause to be issued, delivered or sold, additional shares of
capital stock or other voting securities of the Company or obligating the
Company to issue, grant, extend or enter into any such security, option,
warrant, call, right, commitment, agreement, arrangement or undertaking.  There
are no outstanding contractual obligations of the Company to repurchase, redeem
or otherwise acquire any shares of capital stock of the Company (other than as
set forth in Section 6.4).

3.3 SUBSIDIARIES.

    (a)  The authorized capital stock of each of the subsidiaries (as defined
in Section 9.3 of this Agreement) of the Company (the "SUBSIDIARIES"; provided
that Georgia Magnetic Imaging Center, L.P., a Georgia limited partnership
("GMIC"), shall be deemed to be a Subsidiary only for purposes of Sections 3.3,
3.5(a), 3.6(a), 3.6(d), 3.25, 3.26 and 6.9) is set forth on SCHEDULE 3.3.  All
of the outstanding shares of capital stock of Subsidiaries are owned of record
and beneficially by the Company, free and clear of all mortgages, liens,
pledges, charges, encumbrances or other security interests (collectively,
"LIENS").  

    (b)  Except as set forth on SCHEDULE 3.3, since December 31, 1996, no
shares of capital stock or other voting securities of any Subsidiary were
issued, reserved for issuance, issuable or outstanding.  All outstanding shares
of capital stock of Subsidiaries are, duly authorized, validly issued, fully
paid and nonassessable and not subject to preemptive rights.  There are no
bonds, debentures, notes or other indebtedness of any Subsidiary having the
right to vote (or convertible into, or exchangeable for, securities having the
right to vote) on any matters on which stockholders of Subsidiaries may vote. 
There are no securities, options, warrants, calls, rights, commitments,
agreements, arrangements or undertakings of any kind to which the Company or any
Subsidiary is a party or by which any of them is bound obligating the Company or
any Subsidiary to issue, deliver or sell, or cause to be issued, delivered or
sold, additional shares of capital stock or other voting securities of any
Subsidiary or obligating the Company or any Subsidiary to issue, grant, extend
or enter into any such security, option, warrant, call, right, commitment,
agreement, arrangement or undertaking.  There are no outstanding contractual
obligations of the Company or any Subsidiary to repurchase, redeem or otherwise
acquire any shares of capital stock of any Subsidiary.  Except for the Company's
interest in the Subsidiaries, neither the Company nor any Subsidiary owns
directly or indirectly any interest or investment in the form of debt or equity
in, and neither the Company nor any Subsidiary is subject to any obligation or
requirement to provide for or to make any investment in, any person (other than
financially insignificant holdings of publicly reporting companies held in order
to obtain filings).

                                         -11-
<PAGE>

3.4 AUTHORITY.

    The Company has the requisite corporate power and authority to execute and
deliver this Agreement and to consummate the transactions contemplated hereby
(other than, with respect to the Merger and this Agreement, the approval of the
Merger and the approval and adoption of this Agreement by the holders of a
majority of the Shares outstanding as of the record date for the Special Meeting
(the "COMPANY STOCKHOLDER APPROVAL")).  The execution, delivery and performance
of this Agreement and the consummation by the Company of the Merger and of the
other transactions to which the Company is a party contemplated hereby have been
duly authorized by all necessary corporate action on the part of the Company and
no other corporate proceedings on the part of the Company are necessary to
authorize this Agreement or to consummate the transactions so contemplated (in
each case, other than, with respect to the Merger and this Agreement, the
Company Stockholder Approval).  This Agreement has been duly executed and
delivered by the Company and constitutes a valid and binding obligation of the
Company enforceable against the Company in accordance with its terms.

3.5 CONSENTS AND APPROVALS; NO VIOLATIONS.

    Except for filings, permits, authorizations, consents and approvals as may
be required under, and other applicable requirements of, the Securities Act of
1933 as amended (the "Securities Act") and the Exchange Act (including the
filing with the SEC of the Proxy Statement/Prospectus) and the Hart-Scott-Rodino
Antitrust Improvements Act of 1976, as amended (the "HSR ACT"), neither the
execution, delivery or performance of this Agreement by the Company nor the
consummation by the Company of the transactions contemplated hereby will
(a) conflict with or result in any breach of any provision of the Certificate of
Incorporation or By-laws or partnership agreement, as applicable, of the Company
or any of its Subsidiaries (or, in the case of GMIC, any agreement or contract
related to the Company's investment therein), (b) except as disclosed on
SCHEDULE 3.5 require any filing with, notice to, or Permit (as defined in
Section 3.11), authorization, consent or approval of, any Federal, state or
local government or any court, tribunal, administrative agency or commission or
other governmental or other regulatory authority or agency, domestic, foreign or
supranational (a "GOVERNMENTAL ENTITY"), (c) result in the creation or
imposition of any Liens upon the properties or assets of the Company or any
Subsidiary, (d) except as set forth on SCHEDULE 3.5, result in a violation or
breach of, require any notice to any party pursuant to, or constitute (with or
without due notice or lapse of time or both) a default (or give rise to any
right of termination, amendment, cancellation, acceleration or right of
non-renewal or contractually require any prepayment or offer to purchase any
debt or give rise to the loss of a material benefit) under, any of the terms,
conditions or provisions of any Commitment (as defined in Section 3.10) to which
the Company or any of its Subsidiaries is a party or by which the Company's or
any of its Subsidiaries' properties or assets may be bound, (e) violate any
order, writ, injunction, decree, statute, rule or regulation applicable to the
Company or any of its Subsidiaries or any of their respective properties or
assets or (f) except as disclosed on SCHEDULE 3.5 result in 

                                         -12-
<PAGE>

the loss, forfeiture, revocation, termination or diminution of any Permit,
except in the case of clauses (b), (c), (d), (e) or (f) for failures to fulfill
requirements, Liens, losses, forfeitures, revocations, diminutions, violations,
breaches or defaults that, individually or in the aggregate, have not had a
material adverse effect that has not been cured and reasonably would not be
expected to have a material adverse effect or prevent or materially delay the
consummation of the Merger.

3.6 SEC DOCUMENTS; FINANCIAL STATEMENTS; OTHER FINANCIAL INFORMATION.

    (a)  The Company has filed with the SEC all reports, forms, schedules and
statements and other documents required to be filed by it (the "SEC DOCUMENTS").
As of their respective filing dates, (i) the SEC Documents complied in all
material respects with the requirements of the Securities Act, or the Exchange
Act, as the case may be, and the rules and regulations of the SEC promulgated
thereunder applicable to such SEC Documents, and (ii) none of the SEC Documents
contained any untrue statement of a material fact or omitted to state a material
fact required to be stated therein or necessary in order to make the statements
therein, in light of the circumstances under which they were made, not
misleading.  The financial statements included in the SEC Documents complied, as
of their respective filing dates as to form in all material respects with
applicable accounting requirements and the published rules and regulations of
the SEC with respect thereto, were prepared in accordance with generally
accepted accounting principles ("GAAP") (except, in the case of unaudited
statements, as permitted by Form 10-Q of the SEC) applied on a consistent basis
during the periods involved (except as may be indicated in the notes thereto)
and fairly present, in all material respects, the consolidated financial
position of the Company and its Subsidiaries as of the dates thereof and the
results of its operations and cash flows for the periods then ended (subject, in
the case of unaudited statements, to normal year-end audit adjustments).  Except
as set forth on SCHEDULE 3.6 and except for liabilities and obligations incurred
in the ordinary course of business consistent with past practice since the date
of the most recent consolidated balance sheet included in the SEC Documents
filed and publicly available prior to the date hereof, neither the Company nor
any of its Subsidiaries has any liabilities or obligations of any nature
(whether accrued, absolute, contingent or otherwise) required by GAAP to be set
forth on a balance sheet or in the notes thereto.  Management of the Company has
no reason to believe that with respect to its and its Subsidiaries' long-lived
assets and intangible assets which are subject to Financial Accounting Standards
No. 121, as of June 30, 1997, the undiscounted future cash flows related to such
assets did not exceed the carrying values thereof recorded as of such date, as
required by GAAP.

    (b)  SCHEDULE 3.6(B) sets forth, as of the close of business on July 3,
1997, (A) the consolidated indebtedness owed by the Company and its Subsidiaries
to any third party (separately identifying the portion of such indebtedness
incurred in respect of (i) any Magnetic Resonance Imaging unit (each, an "MRI
UNIT") owned, leased or on order by the Company or any Subsidiary, including,
mobile and fixed site MRI Units, (ii) any equipment owned, leased or on order by
the Company or any Subsidiary, which equipment is used to provide computed axial
tomography services and 

                                         -13-
<PAGE>

imaging systems (each a "CT UNIT"), and (iii) the construction costs incurred in
respect of any fixed site location), and (B) the Company's aggregate
consolidated cash and cash equivalents, in the case of clauses (A) and (B), each
calculated in accordance with GAAP, consistently applied.  The term
"INDEBTEDNESS" shall include indebtedness for borrowed money, reimbursement
obligations with respect to letters of credit and similar instruments,
obligations incurred, issued or assumed as the deferred purchase price of
property or services (other than accounts payable incurred in the ordinary
course of business consistent with past practice), obligations of others secured
by (or, for which the holder of such indebtedness has an existing right,
contingent or otherwise, to be secured) any Lien on property or assets of the
Company or any Subsidiary, capital lease obligations, and obligations in respect
of guarantees of any of the foregoing or any "keep well" or other agreement to
maintain any financial statement condition of another person, in each case,
whether or not matured, liquidated, fixed, contingent, or disputed.

    (c)  SCHEDULE 3.6(C) sets forth, (i) as of June 30, 1997, a fixed asset
schedule that includes a general description of each MRI Unit and CT unit
(including upgrades thereto) owned or subject to capital lease obligations by
the Company or any Subsidiary as of that date, and (ii) as of the date of this
Agreement, a list (the "Commitments List") of all outstanding commitments by the
Company or any Subsidiary to purchase an MRI Unit or CT Unit (including upgrades
thereto), indicating for each such commitment the purchase price as indicated on
the purchase order therefor placed with the manufacturer or other seller of such
unit.

    (d)  To the Company's knowledge, the financial statements of GMIC as of
December 31, 1996, and June 30, 1997, set forth on SCHEDULE 3.6(d), were
prepared in accordance with GAAP, applied on a consistent basis during the
periods involved (except that the June 30, 1997 financial statements were
prepared on the income tax basis of accounting, which is a comprehensive basis
of accounting other than GAAP), and fairly present, in all material respects,
the financial position of GMIC as of the dates thereof and the results of its
operations and cash flows (except the June 30, 1997 financial statements, which
do not contain a statement of cash flows) for the periods then ended (subject,
in the case of unaudited statements, to normal year end adjustments). 

3.7 INFORMATION SUPPLIED.

    None of the information supplied or to be supplied by the Company
specifically for inclusion or incorporation by reference in any documents to be
filed by the Company with the SEC or any other Governmental Entity in connection
with the Merger and the other transactions contemplated hereby will, on the date
of its filing or, with respect to the Proxy Statement/Prospectus, as
supplemented if necessary, on the date it is sent or given to stockholders or at
the time of the Special Meeting, contain any untrue statement of a material fact
or omit to state any material fact required to be stated therein or necessary in
order to make the statements therein, in light of the circumstances under which
they are made, not misleading; PROVIDED that no representation or warranty is
made by the Company with respect to statements made or 

                                         -14-
<PAGE>

incorporated by reference therein based on information supplied by Investor or
Newco specifically for inclusion or incorporation by reference therein.  The
Proxy Statement/Prospectus and any such other documents filed by the Company
with the SEC or with any other Governmental Entity will comply as to form in all
material respects with the requirements of the Exchange Act and the rules and
regulations thereunder.

3.8 ABSENCE OF CERTAIN CHANGES OR EVENTS.

    Except as set forth on SCHEDULE 3.8 hereto, since the date of the most
recent audited financial statements included in the SEC Documents, the Company
and its Subsidiaries have conducted their respective businesses only in the
ordinary course consistent with prior practice, and there has not been (a) any
material adverse change, (b) any declaration, setting aside or payment of any
dividend or other distribution (whether in cash, stock or property) with respect
to any of the Company's capital stock, except for regular dividends on the
Series D Shares and Series C Shares in accordance with the terms thereof,
(c) any split, combination or reclassification of any of its capital stock or
any issuance or the authorization of any issuance of any other securities in
respect of, in lieu of or in substitution for shares of its capital stock,
(d) (i) any granting by the Company or any Subsidiary to any officer of the
Company of any increase in compensation, (ii) any granting by the Company or any
Subsidiary to any officer, employee, director or consultant of any increase in
severance or termination pay or (iii) any entry by the Company or any Subsidiary
into any written employment agreement, or any severance or termination agreement
or arrangement with any officer, employee, director or consultant, (e) any
damage, destruction or loss to property, whether or not covered by insurance,
that, individually or in the aggregate, has not been cured and would not be
reasonably expected to have, individually or in the aggregate, a material
adverse effect, (f) any change in accounting methods, principles or practices by
the Company or any Subsidiary, (g) any delivery of a notice of non-renewal or
any other failure to renew contracts or agreements between the Company or any
Subsidiary, on the one hand, and hospitals, clinics, medical or healthcare
providers, health maintenance organizations or other customers or third party
payors, on the other hand, which are material, individually or in the aggregate,
except that any such event shall not be deemed material for this purpose to the
extent that the Company has obtained new or additional contracts as replacements
thereof, or (h) any loss of any employee who earned more than $100,000 in the
most recent fiscal year (in salary, bonus and other cash compensation).

3.9 LITIGATION.

    Except as disclosed on SCHEDULE 3.9, there is no claim, suit, action,
proceeding or investigation pending or, to the knowledge of the Company,
threatened against or affecting the Company or any of its Subsidiaries and there
is no judgment, decree, injunction, rule or order of any Governmental Entity or
arbitrator outstanding against the Company or any Subsidiary (other than such
rules or orders that are of general application to the Company's industry, none
of which has had or would likely have, a material adverse effect).

                                         -15-
<PAGE>

3.10     CONTRACTS.

    Except as set forth on SCHEDULE 3.10, filed as exhibits to or otherwise
reflected in the report on Form 10-K filed with the SEC by the Company related
to the fiscal year ended December 31, 1996 and all SEC Documents filed
thereafter (collectively, the "RECENT SEC DOCUMENTS"), or delivered to or made
available to Investor or Newco, or their respective counsel, representatives or
advisors, there are no (a) notes, bonds, mortgages, indentures, material leases,
or material Permits to which the Company is a party or which affects its assets,
or (b) other material contracts, agreements or other instruments or obligations
or any amendments, supplements or restatements of any of the foregoing ((a) and
(b), collectively, "COMMITMENTS") that (i) relate to real property, (ii) relate
to services provided by the Company to or at hospitals, clinics, medical or
healthcare providers or other customers or services paid for by health
maintenance organizations or other third party payors, (iii) relate to the
construction, reconstruction, maintenance, transportation or use of Magnetic
Resonance Imaging equipment, (iv) relate to any proposed Alternative Transaction
(as defined below) as to which discussions have not been terminated prior to the
date hereof, including all Commitments containing confidentiality, standstill,
non-solicitation or similar provisions, (v) relate to contracts for the
provision of services provided to the Company by physicians, physician groups or
other medical professionals or (vi) are otherwise material to the business,
financial condition or results of operations of the Company and its
Subsidiaries, taken as a whole.  Neither the Company nor any Subsidiary is and,
to the knowledge of the Company, no other party is in violation of or in default
under (nor does there exist any condition affecting the Company, or to the
Company's knowledge, other parties to such Commitments which upon the passage of
time or the giving of notice or both would reasonably be expected to cause such
a violation of or default under) any material Commitment to which it is a party
or by which it or any of its properties or assets is bound.  Each Commitment
constitutes a valid and binding obligation of the Company and/or Subsidiary
party thereto and, to the knowledge of the Company, each other party thereto,
enforceable against such other party in accordance with its terms.

3.11     COMPLIANCE WITH LAWS.

    The Company and each Subsidiary is in compliance with all applicable
statutes, laws, codes, ordinances, regulations, rules, Permits, judgments,
decrees and orders of any Governmental Entity applicable to its assets,
properties, business or operations, except for such failures to be in compliance
as have not had a material adverse effect that has not been cured and would not
be reasonably expected to have, individually or in the aggregate, a material
adverse effect.  The Company and each Subsidiary has in effect (and the Company
and/or each Subsidiary has timely made appropriate filings for issuance or
renewal thereof) all Federal, state, local and foreign governmental approvals,
authorizations, certificates, filings, franchises, licenses, notices, permits
and rights, including all certificates of need and authorizations under
Environmental Laws (as defined below) and exemptions from any of the foregoing
(collectively, "PERMITS") necessary for it to own, lease or operate its
properties and 

                                         -16-
<PAGE>

assets and to carry on its business as now conducted, except for the failure to
have such Permits that, individually or in the aggregate, has not had and would
not reasonably be expected to have a material adverse effect.  SCHEDULE 3.11
contains a list of all material Permits (including, without limitation, all
Certificates of Need), and copies thereof have been provided to Investor or its
counsel.  No default under any Permit has occurred, except for defaults under
Permits that, individually or in the aggregate, would not reasonably be expected
to have a material adverse effect.  The Company has received no notice of any
pending investigation or review by any Governmental Entity with respect to the
Company or any Subsidiary.  To the Company's knowledge, no such investigation or
review is threatened.

3.12     ENVIRONMENTAL MATTERS.

    Except as set forth in SCHEDULE 3.12:

    (a)  the Company and each Subsidiary is, and has been, in compliance with
all applicable Environmental Laws (as defined below) except for any
noncompliance that, individually or in the aggregate, has not had a material
adverse effect that has not been cured and would not reasonably be expected to
have a material adverse effect.  The term "ENVIRONMENTAL LAWS" means any
Federal, state, provincial, regional, municipal, local or foreign judgment,
order, decree, statute, law, ordinance, rule, regulation, code, permit, consent,
approval, license, writ, decree, directive, injunction or other enforceable
governmental requirement, including any registration requirement, relating to: 
(A) Releases (as defined below) or threatened Releases of Hazardous Materials
(as defined below) into the environment; (B) the generation, treatment, storage,
disposal, use, handling, manufacturing, transportation or shipment of Hazardous
Materials; or (C) otherwise relating to pollution or protection of health or
safety or the environment;

    (b)  there has been no Release or threatened Release of Hazardous
Materials, in, on, under or affecting any property now or previously owned,
leased, controlled or operated by the Company or any Subsidiary or, to the
knowledge of the Company, any adjacent site that has had or would reasonably be
expected to have a material adverse effect.  The term "RELEASE" has the meaning
set forth in 42 U.S.C.  Section 9601(22).  The term "HAZARDOUS MATERIALS" means
any pollutant, contaminant, hazardous, radioactive or toxic substance, material,
constituent or waste, or any other waste, substance, chemical or material
regulated under any Environmental Law, including (1) petroleum, crude oil and
any fractions thereof, (2) natural gas, synthetic gas and any mixtures thereof,
(3) asbestos and/or asbestos-containing material, (4) radon and (5)
polychlorinated biphenyls ("PCBS"), or materials or fluids containing PCBs;

    (c)  there is no pending, or, to the knowledge of the Company, threatened
claim, action, demand, investigation or inquiry of or against the Company by any
Governmental Entity or other person relating to any actual or potential
violations of Environmental Law or any actual or potential obligation to
investigate or remediate a Release or threatened Release of any Hazardous
Materials;

                                         -17-
<PAGE>

    (d)  neither the Company nor any Subsidiary has assumed, whether by
contract or operation of law, any liabilities or obligations arising under
Environmental Laws in connection with properties or facilities previously owned,
leased or operated by the Company or any Subsidiary or in connection with any
divisions, subsidiaries, companies or other entities formerly owned by the
Company or any Subsidiary; and

    (e)  there are no underground or aboveground storage tanks, incinerators or
surface impoundments at, on or about, under or within any property, owned,
leased, controlled or operated by the Company or any Subsidiary, and no such
tanks, incinerators or impoundments have been removed from any such property;
and

    (f)  neither the Company nor any Subsidiary has used any waste disposal
site, or otherwise disposed of, transported, or arranged for the transportation
of, any Hazardous Materials to any place or location, except for any such use,
disposal, transportation or arrangement that has not had a material adverse
effect that has not been cured and reasonably would not be expected to have a
material adverse effect.

3.13     ABSENCE OF CHANGES IN BENEFIT PLANS; LABOR RELATIONS.

    Except as disclosed on SCHEDULE 3.13 or as expressly provided in this
Agreement, since the date of the most recent audited financial statements
included in the SEC Documents, there has not been any adoption or amendment in
any material respect by the Company or any Subsidiary of any collective
bargaining agreement or any bonus, pension, profit sharing, deferred
compensation, incentive compensation, stock ownership, stock purchase, stock
option, phantom stock, retirement, vacation, severance, disability, death
benefit, hospitalization, medical or other plan or arrangement providing
benefits to any current or former employee, officer or director of the Company
or any Subsidiary (for the avoidance of doubt, regular salary and/or wage
increases and modifications to bonus, commission and other incentive
compensation arrangements in case with respect to non-officer employees of the
Company or any Subsidiary in the ordinary course of business and consistent with
past practice are excluded from the foregoing).  Except as set forth in
SCHEDULE 3.13 and except as provided in the Company's certificates and bylaws or
as expressly provided in this Agreement, there exist no employment, consulting,
severance, termination or indemnification agreements or arrangements between the
Company and any current or former employee, officer or director of the Company. 
SCHEDULE 3.13 contains a list of all amounts payable or that will or may become
payable to each director, officer or employee or former director, officer or
employee of the Company or any Subsidiary pursuant to any employment,
change-in-control, severance or termination agreement or arrangement, other than
pursuant to the Employment Agreements, as a result of the Merger.  There are no
collective bargaining or other labor union agreements to which the Company or
any Subsidiary is a party or by which it is bound.  To the knowledge of the
Company, since January 1, 1994, the Company has not encountered any labor union
organizing activity, or had any actual or threatened employee strikes, work
stoppages, slowdowns or lockouts.  

                                         -18-
<PAGE>

3.14     EMPLOYMENT MATTERS; AFFILIATE TRANSACTIONS.

    (a)  SCHEDULE 3.14(a) sets forth a list of all directors and officers of
the Company and each Subsidiary as of the date hereof and the aggregate salary,
bonus and other cash compensation paid and the number of Company Stock Options
and/or Warrants granted or issued to each such officer and director and to each
employee of the Company or any Subsidiary in the most recently completed fiscal
year and paid and granted or issued to each such person from the beginning of
the current fiscal year through June 30, 1997.  

    (b)  SCHEDULE 3.14(b) sets forth a list of all outstanding Company Stock
Options and Warrants as of the date hereof, showing for each such Company Stock
Option and Warrant: (i) the number of Shares issuable, (ii) the number of vested
Shares, (iii) the date of grant, (iv) the exercise price and (v) the holder
thereof.

    (c)  SCHEDULE 3.14(c) or the Recent SEC Documents sets forth a description
of all transactions between the Company or its Subsidiaries, on the one hand,
and any of their respective Affiliates, directors, officers, employees, or
consultants, on the other hand, in each case consummated at any time since
January 1, 1996 (except for ordinary course commercial transactions involving
MRI Units, CT Units and related equipment, and the maintenance thereof, with
General Electric Company and its Affiliates (a "GE Transaction")).  Except as
set forth on SCHEDULE 3.14(c) or reflected in the Recent SEC Documents, or
pursuant to a GE Transaction, there are no agreements or arrangements between
the Company or its Subsidiaries, on the one hand, and any of their respective
Affiliates, directors, officers, employees or consultants, on the other hand,
with respect to any such transactions.  No Affiliate, director, officer,
employee or consultant of the Company owns any interest in any asset or property
(real or personal, tangible or intangible), business or contract used or
intended for use or otherwise relating to the business currently conducted or
proposed to be conducted by the Company or any Subsidiary, other than pursuant
to a GE Transaction or reflected in the Recent SEC Documents.

3.15     ERISA COMPLIANCE.

    (a)  SCHEDULE 3.15(a) contains a list of all "employee pension benefit
plans" (as defined in Section 3(2) of the Employee Retirement Income Security
Act of 1974, as amended ("ERISA")) (sometimes referred to herein as "PENSION
PLANS"), "employee welfare benefit plans" (as defined in Section 3(1) of ERISA)
and all other benefit plans maintained or contributed to by the Company or any
other person or entity that, together with the Company, is treated as a single
employer under Section 414(b), (c), (m) or (o) of the Internal Revenue Code of
1986, as amended (the "CODE") (the Company and each such other person or entity,
a "COMMONLY CONTROLLED ENTITY"), for the benefit of any current or former
employees, officers or directors of the Company or dependents of any such person
(collectively, "BENEFIT PLANS").  The Company has delivered or made available to
Investor or Newco, or their respective counsel, representatives or advisors,
true, complete and correct copies of (i) each Benefit Plan 

                                         -19-
<PAGE>

(or, in the case of any unwritten Benefit Plans, descriptions thereof), (ii) the
most recent annual report on Form 5500 filed with the Internal Revenue Service
with respect to each Benefit Plan (if any such report was required), (iii) the
most recent summary plan description for each Benefit Plan for which such
summary plan description is required and (iv) each trust agreement and group
annuity contract relating to any Benefit Plan.  None of the following have
occurred which could have a material adverse effect:  (A) any failure to
administer any Benefit Plan in all material respects in accordance with its
terms, (B) any failure by the Company or any Subsidiary or any Benefit Plan to
comply in all material respects, or any failure of any Benefit Plan to be
operated and administered in all material respects, in accordance with the
applicable provisions of ERISA and the Code, (C) any "reportable event" or
"prohibited transaction" (as such terms are defined in ERISA and the Code), (D)
any termination of any Benefit Plan which results in a "reportable event," or
(E) the consummation of the transactions entered into pursuant to this Agreement
if such transactions result in a "reportable event."  

    (b)  Except as disclosed in SCHEDULE 3.15(b), all Pension Plans intended to
qualify under Section 401(a) of the Code have been the subject of determination
letters from the Internal Revenue Service to the effect that such Pension Plans
are qualified and exempt from Federal income taxes under Section 401(a) and
501(a), respectively, of the Code, and no such determination letter has been
revoked nor has any such Pension Plan been amended since the date of its most
recent determination letter or application therefor in any respect, and no event
has occurred that would adversely affect its qualification or materially
increase its costs in a manner which would constitute a material adverse effect.
There have been no material violations of ERISA or the Code with respect to the
filing of applicable documents, notices or reports (including, without
limitation, annual reports filed on IRS Form 5500) relating to any Benefit Plan
maintained by the Company or any Commonly Controlled Entity with any
Governmental Authority or the furnishing of such required documents to the
participants or beneficiaries of such Benefit Plans.  

    (c)  Neither the Company nor any Commonly Controlled Entity has within the
five year period immediately preceding the date hereof maintained, contributed
to or been obligated to contribute to any Benefit Plan that is subject to Title
IV of ERISA or Section 412 of the Code.  Neither the Company nor any Commonly
Controlled Entity is required to contribute to any "multiemployer plan" (as
defined in Section 4001(a) (3) of ERISA) or has withdrawn from any multiemployer
plan where such withdrawal has resulted or would result in any "withdrawal
liability" (within the meaning of Section 4201 of ERISA) that has not been fully
paid.

    (d)  With respect to any Benefit Plan that is an employee welfare benefit
plan, except as disclosed in SCHEDULE 3.15(d), (1) no such Benefit Plan is
funded through a "welfare benefits fund", as such term is defined in Section 419
(e) of the Code, (2) each such Benefit Plan that is a "group health plan", as
such term is defined in Section 5000 (b)(1) of the Code, complies substantially
with the applicable requirements of Section 4980B(f) of the Code and (3) except
as provided in writing in such plan, there 

                                         -20-
<PAGE>

are no understandings, agreements or undertakings, written or oral, that would
prevent any such plan (including any such plan covering retirees or other former
employees) from being amended or terminated without material liability to the
Company or any Subsidiary on or at any time after the Effective Time.  Except as
set forth in SCHEDULE 3.15(d), no Benefit Plan that is a welfare benefit plan
provides for post-retirement medical or life insurance benefits coverage to any
current or former employee, officer, or director of the Company or any dependent
of any such individual except as may be required under Section 4980B of the
Code.

    (e)  Except as set forth on SCHEDULE 3.15(e) and except with respect to the
Company Stock Options, no employee or director of the Company will be entitled
to any additional compensation or benefits or any acceleration of the time of
payment or vesting of any compensation or benefits under any Benefit Plan as a
result of the transactions contemplated by this Agreement.  It shall be assumed
for purposes of the preceding sentence that no payments will be received by, or
accelerated to, any such employee or director as a result of the termination of
such individual's employment/service relationship by the Surviving Corporation
after the Effective Time.

    (f)  All contributions due and payable on or before the Closing Date in
respect of any Benefit Plan have been made in full and proper form, or adequate
accruals have been provided for in the financial statements contained in the SEC
Documents, in accordance with GAAP, for all other contributions or amounts in
respect of the Benefit Plans for periods ending on the Closing Date, or, in the
case of any contributory Benefit Plan, amounts have been contributed to such
Benefit Plan within the time prescribed by the Code, ERISA, or any regulations
thereunder or interpretations thereof by the Internal Revenue Service or the
Department of Labor.

    (g)  As of the Closing Date, there are no actions, suits, disputes,
arbitrations or claims pending (other than routine claims for benefits) and the
Company has received no notice of any legal, administrative or other proceedings
or governmental investigations pending or, to the knowledge of the Company and
any Commonly Controlled Entity, threatened against any Benefit Plan or against
the assets of any Benefit Plan.

3.16     TAXES.

    (a)  The Company has filed all tax returns and reports required to be filed
by it (which returns are true and complete in all material respects) and has
paid all taxes due and required to be paid by it.  The most recent financial
statements contained in the SEC Documents reflect an adequate reserve for all
taxes payable by the Company or any Subsidiary for all taxable periods and
portions thereof through the date of such financial statements.  No deficiencies
for any taxes have been proposed, asserted or assessed against the Company or
any Subsidiary that have not either been fully paid or specifically reserved
against in the financial statements included in the SEC Documents, and, except
as set forth on SCHEDULE 3.16, no requests for waivers of the time to assess any
such taxes are pending.  Except as disclosed in SCHEDULE 3.16, none of the
income 

                                         -21-
<PAGE>

tax returns of the Company or any Subsidiary have been or is currently being
examined by the United States Internal Revenue Service or any other Governmental
Entity.  SCHEDULE 3.16 sets forth the periods during which the Company's and its
Subsidiaries' Consolidated Federal net operating loss carryforwards (the "NOL
Carryforwards") arose and the expiration dates of the NOL Carryforwards,
identifies which portions thereof are currently limited under Section 382 of the
Code or the "separate return limitation year" ("SRLY") rules of the consolidated
return regulations, and, in the case of NOL Carryforwards currently limited
under Section 382 of the Code, the relevant Section 382 limitation (within the
meaning of Section 382(b) (1) of the Code).  As used in this Agreement, "TAXES"
shall mean all Federal, state, local and foreign income, property, sales,
payroll, employment, excise, withholding and other taxes, tariffs or other
governmental charges in the nature of a tax as well as any interest, penalties
and additions to tax.

    (b)  Except as set forth on SCHEDULE 3.16, no amount that could be received
pursuant to the Benefit Plans or any executed and delivered agreements between
the Company or any Subsidiary and any officer, director or employee thereof in
effect as of the date hereof (whether in cash or property or the vesting of
property) as a result of any of the transactions contemplated by this Agreement
by any employee, officer or director of the Company or any Subsidiary who is a
"disqualified individual" (as such term is defined in proposed Treasury
Regulation Section 1.280G-1) under any employment, severance, change-in-control
or termination agreement, other compensation arrangement or Benefit Plan
currently in effect would either alone, or in combination with any other amounts
to be paid, be an "excess parachute payment" (as such term is defined in Section
280G(b) (1) of the Code).  No officer, director or employee of the Company or
any Subsidiary is entitled to receive any additional payment from the Company,
any Subsidiary, the Surviving Corporation, or any other person referred to in
Q&A 10 under proposed Treasury Regulation Section 1.280G-1 (a "PARACHUTE
GROSS-UP PAYMENT") in the event that the 20 per cent parachute excise tax of
Section 4999(a) of the Code is imposed on such person.

    (c)  All Company Stock Options granted under any Stock Option Plan qualify,
under Section 162(m)(4) of the Code, as an exception from "applicable employee
remuneration," and as such, no deduction of the Company or any Subsidiary
relating to the Company Stock Options, shall be disallowed by reason of Section
162(m) of the Code.

3.17     [Intentionally Omitted]

      
3.18     TITLE TO PROPERTIES; CONDITION OF ASSETS.

    (a)  Except as set forth in SCHEDULE 3.18, the Company and each Subsidiary
has good and marketable title to, or valid leasehold interests in, all its
material properties and assets except for such as are no longer used in the
conduct of its businesses or as have been disposed of in the ordinary course of
business.  All such 

                                         -22-
<PAGE>

material assets and properties are free and clear of all Liens other than those
set forth in SCHEDULE 3.18 and except for Liens that, individually or in the
aggregate, do not interfere with the ability of the Company or any Subsidiary to
conduct its business as currently conducted and do not adversely affect the
value of, or the ability to sell, in any material respect, such assets and
properties. 

    (b)  The properties and assets of the Company and its Subsidiaries are in
reasonably good repair and operating condition, ordinary wear and tear excepted
and are sufficient for the conduct of the business of the Company and
Subsidiaries as presently conducted.

    (c)  Except as set forth in SCHEDULE 3.18, the Company and each Subsidiary
has complied in all material respects with the terms of all material leases to
which it is a party or under which it is in occupancy, and all such leases are
in full force and effect.  The Company enjoys peaceful and undisturbed
possession under all such material leases.

    (d)  Neither the Company nor any Subsidiary owns any real property.

3.19     INTELLECTUAL PROPERTY.

    The Company and each Subsidiary owns, or is validly licensed or otherwise
has the right to use, without any obligation to make any fixed or contingent
payments, including any royalty payments, as applicable, all patents, patent
rights, trademarks, trademark rights, trade names, trade name rights, service
marks, service mark rights, copyrights and other proprietary intellectual
property rights and computer programs that are used in the conduct of the
business of the Company as now operated (collectively, "INTELLECTUAL PROPERTY
RIGHTS").  SCHEDULE 3.19 sets forth a description of all patents, trademarks and
copyrights and applications therefor owned by or licensed to the Company that
are used in the conduct of the business of the Company as now operated
(excluding customary commercial software licenses).  Except as set forth in
SCHEDULE 3.19, no claims are pending or, to the knowledge of the Company,
threatened that the Company is, and to the knowledge of the Company, neither the
Company nor any Subsidiary is, infringing or otherwise adversely affecting the
rights of any person with regard to any Intellectual Property Right.  To the
knowledge of the Company, except as set forth in SCHEDULE 3.19, no person is
infringing the rights of the Company with respect to any Intellectual Property
Right.  The Company has not licensed, or otherwise granted, to any third party,
any rights in or to any Intellectual Property Rights.

3.20     NON-COMPETE.

    Except for local vicinity covenants provided to certain healthcare
customers of the Company or a Subsidiary or as set forth in SCHEDULE 3.20,
neither the Company nor any Subsidiary is subject to any agreement, covenant or
understanding that 

                                         -23-
<PAGE>

restricts the Company or any Subsidiary from entering or conducting any line of
business in any location at any time.

3.21     VOTING REQUIREMENTS.

    The affirmative vote of the holders of a majority of the outstanding Shares
is the only vote of the holders of any class or series of the Company's capital
stock necessary to approve this Agreement and the Merger. 

3.22     STATE TAKEOVER STATUTES.

    The Board of Directors of the Company has approved the Merger and this
Agreement, and such approval is sufficient to render inapplicable to the Merger
and this Agreement, the provisions of Section 203 of the DGCL to the extent, if
any, such Section is applicable to the Merger, this Agreement and the
transactions contemplated by this Agreement and the Stockholder Agreement.  No
other state takeover statute or similar statute or regulation applies or
purports to apply to the Merger, this Agreement or the transactions contemplated
by this Agreement.

3.23     BROKERS; SCHEDULE OF FEES AND EXPENSES.

    No broker, investment banker, financial advisor, finder or other person is
entitled to any brokerage, investment banker's, financial advisor's, finder's or
other fee or commission for which Investor, Newco or any of their respective
Affiliates (other than, after the Merger, the Company) will be liable in
connection with the execution of this Agreement by the Company or the
performance by the Company or its Subsidiaries of the Company's obligations
hereunder.  The fees and expenses incurred and to be incurred by or on behalf of
the Company and/or its Subsidiaries in connection with this Agreement and the
transactions contemplated by this Agreement, including the fees and expenses of
the Financial Advisor and the fees and expenses of the Company's legal counsel
(including any counsel retained by any independent committee of the Board of
Directors of the Company or any other counsel retained to represent the
interests of the Company or its directors or shareholders), shall not exceed, in
the aggregate, the applicable amount set forth in a disclosure letter delivered
to Investor on the date hereof (the "DISCLOSURE LETTER").  

3.24     OPINION OF FINANCIAL ADVISOR.

    The Board of Directors of the Company has received the opinion of the
Financial Advisor, addressed to the Board, dated the date of this Agreement to
the effect that, as of such date and based upon and subject to the matters set
forth therein, the consideration to be received and retained by holders of
Shares pursuant to the Merger is fair from a financial point of view to such
holders, and a copy of such opinion, signed and addressed to the Company's
Board, has been delivered to Investor.

                                         -24-
<PAGE>

3.25     CERTAIN ADDITIONAL REGULATORY MATTERS. 

    Except where a matter has not had a material adverse effect that has not
been cured or where a material adverse effect would not reasonably be expected
to occur, none of (x) the Company, any Affiliate of the Company, or, the
officers, directors, or employees or agents of the Company or any Affiliate,
(y) to the Company's knowledge (for this purpose, without independent
investigation or inquiry), any of the Persons having a direct or indirect
ownership interest in the Company or any of its Subsidiaries within the meaning
of Section 1320a-7(b)(8) of Title 42 of the United States Code or (z) to the
Company's knowledge (for this purpose, without independent investigation or
inquiry), any 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 constitute violations of, or are cause for
imposition of civil penalties upon the Company or mandatory or permissive
exclusion of the Company from Medicare or Medicaid, under Sections 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 including 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 (as defined
below) or Federal Health Care Program (as defined below) 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 part by CHAMPUS, Medicare
or Medicaid or any other State Health Care Program or any Federal Health Care
Program; or

                                         -25-
<PAGE>

    (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) of 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 Section 1124(A) of the Social
Security Act ("SSA") (Section 1320a-3 of Title 42 of the United States Code).

3.26     MEDICARE/MEDICAID PARTICIPATION; ACCREDITATION.

    (a)  Except where a matter has not had a material adverse effect that has
not been cured or where a material adverse effect would not reasonably be
expected to occur, neither the Company nor any existing officers or directors of
the Company who (based on advice by Investor to the Company) is expected to be
an officer, director, agent (as defined in 42 C.F.R. Section 1001.1001(a)(2)),
or managing employee (as defined in SSA Section 1126(b) or any regulations
promulgated thereunder) of the Company: (1) has had a civil monetary penalty
assessed against it under Section 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 Section
1128(h) or any regulations promulgated thereunder ("STATE HEALTH CARE PROGRAM")
or a federal health care program as defined in SSA Section 1128B(f) ("FEDERAL
HEALTH CARE PROGRAM"); or (3) has been convicted (as that term is defined in 42
C.F.R. Section 1001.2) of any of the following categories of offenses as
described in SSA Section 1128(a) and (b)(1), (2), (3) or any regulations
promulgated thereunder:  

         (i)  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;

         (ii) 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; 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;

         (iii)     federal or state laws relating to the interference with or
obstruction of any investigation into any criminal offense described above in
this clause (a); or

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

                                         -26-
<PAGE>

    (b)  The Company or a Subsidiary has a Medicare provider number, and a
participating provider agreement in force with a Medicare Part B carrier, in
each locale, as applicable, in which the Company or such Subsidiary bills
directly to Medicare for services furnished by the Company or such Subsidiary.

    (c)  The Company or a Subsidiary has a Medicaid number and a participating
provider agreement in each state, as applicable, in which the Company or such
Subsidiary bills directly to such states' Medicaid agency for services provided
by the Company or such Subsidiary.


    (d)  The Company or a Subsidiary intends to seek accreditation from a
private accrediting organization and has no reason to believe that such
accreditation will not be issued in the ordinary course.

3.27     REGULATED CUSTOMERS.

    To the Company's knowledge (for this purpose, without independent
investigation or inquiry) each party to each Commitment (other than the Company
and its Subsidiaries) and each other person to which the Company or any
Subsidiary provides services has all Permits necessary or advisable for the
conduct of its business and there are no adverse claims, suits, actions,
proceedings or investigations pending or threatened against such person, in each
case, relating to such Commitment or services. 

3.28     INSURANCE.  

    The Company has in full force and effect the insurance policies set forth
in SCHEDULE 3.28 (the "Insurance Policies").


                                      ARTICLE IV

                 REPRESENTATIONS AND WARRANTIES OF INVESTOR AND NEWCO


    Investor represents and warrants to the Company, with respect to itself and
Newco and, when formed in accordance with the terms hereof, Newco represents and
warrants to the Company, as follows:

4.1 ORGANIZATION.

    Investor is, and Newco, from and after formation in accordance with
Section 1.1 hereof (hereinafter, such formation shall be referred to as the
"Formation"), will be, duly organized, validly existing and in good standing
under the laws of the jurisdiction of its organization and has all requisite
power and authority to carry on its business as now being conducted.  Investor
is and, from and after Formation, Newco 

                                         -27-
<PAGE>

will be, duly qualified or licensed to do business and is in good standing in
each jurisdiction in which the nature of its business or the ownership or
leasing of its properties makes such qualifications or licensing necessary,
other than in such jurisdictions where the failure to be so qualified or
licensed (individually or in the aggregate) could not be reasonably expected to
either prevent or materially delay the consummation of the Merger or impair its
ability to perform its obligations hereunder.  Investor has made, and from and
after Formation, Newco will make available to the Company complete and correct
copies of their certificate of formation, operating agreement, certificate of
incorporation and by-laws, as amended to the date hereof.

4.2 AUTHORITY.

    Investor has, and Newco, from and after Formation, will have the requisite
power and authority to execute and deliver this Agreement and the Stockholder
Agreement, and to consummate the transactions contemplated by this Agreement and
the Stockholder Agreement.  The execution, delivery and performance of this
Agreement and the Stockholder Agreement, and the consummation of the
transactions contemplated by this Agreement and the Stockholder Agreement, have
been (or, will be, in case of Newco) duly authorized by all necessary action on
the part of Investor and Newco and no other proceedings on the part of Investor
and Newco are (or, will be, in the case of Newco) necessary to authorize this
Agreement or the Stockholder Agreement or to consummate the transactions
contemplated hereby or thereby.  Each of this Agreement and the Stockholder
Agreement has been (or, will be, in the case of Newco) duly executed and
delivered by Investor and Newco and constitutes (or, will constitute, in the
case of Newco) a valid and binding obligation of Investor and Newco enforceable
against Investor and Newco in accordance with its terms.

4.3 CONSENTS AND APPROVALS; NO VIOLATIONS.

    Except for filings, permits, authorizations, consents and approvals as may
be required under, and other applicable requirements of the Exchange Act, the
HSR Act, the DGCL and state takeover laws, neither the execution, delivery or
performance of this Agreement or the Stockholder Agreement by Investor and
Newco, nor the consummation by Investor and Newco of the transactions
contemplated hereby or thereby will (i) conflict with or result in any breach of
any provision of the respective certificate of incorporation or formation or
by-laws or operating agreement, or comparable documents of Investor and Newco,
as the case may be, (ii) require any filing with, notice to, or permit,
authorization, consent or approval of, any Governmental Entity (except where the
failure to obtain such permits, authorizations, consents or approvals or to make
such filings would not reasonably be expected to prevent or materially delay the
consummation of the Merger), (iii) result in a violation or breach of, require
any notice to any party pursuant to, or constitute (with or without due notice
or lapse of time or both) a default (or give rise to any right of termination,
amendment, cancellation or acceleration) under, any of the terms, conditions or
provisions of any note, bond, mortgage, indenture, license, lease, contract,
agreement or other instrument or obligation to which Investor or any of its
subsidiaries is a party or by which any of them or any of 

                                         -28-
<PAGE>

their properties or assets may be bound or (iv) violate any order, writ,
injunction, decree, statute, rule or regulation applicable to Investor, any of
its subsidiaries or any of their properties or assets, except in the case of
clauses (iii) and (iv) for violations, breaches or defaults which could not,
individually or in the aggregate, be reasonably expected to either prevent or
materially delay the consummation of the Merger or impair its ability to perform
its obligations hereunder.

4.4 INFORMATION SUPPLIED.

    None of the written information supplied or to be supplied by Investor or
Newco specifically for inclusion or incorporation by reference in the Proxy
Statement/Prospectus, as supplemented if necessary, and any other documents to
be filed by the Company with the SEC or any Governmental Entity in connection
with the Merger and the other transactions contemplated hereby will, on the date
of its filing or, with respect to the Proxy Statement/Prospectus, as
supplemented if necessary, on the date it is sent or given to stockholders or at
the time of the Special Meeting, contain any untrue statement of a material fact
or omit to state any material fact required to be stated therein or necessary in
order to make the statements therein, in light of the circumstances under which
they are made, not misleading.

4.5 INTERIM OPERATIONS OF NEWCO.

    Newco was formed solely for the purpose of engaging in the transactions
contemplated hereby, has engaged in no other business activities and has
conducted its operations only as contemplated hereby.

4.6 BROKERS.

    No broker, investment banker, financial advisor, finder or other person is
entitled to any brokerage, investment banker's, financial advisor's, finder's or
other fee or commission for which the Company will be liable in connection with
the execution of this Agreement by Investor and Newco or the performance by
Investor and Newco of their obligations hereunder. 

4.7 FINANCING.

    Investor has sufficient sources of liquid capital funds, and concurrently
with the Effective Time will fund, in cash, to the Company at least (a) $37
million in equity capital and (b) $35 million in subordinated PIK notes of the
Company having substantially the terms and conditions reflected on SCHEDULE 4.7
attached hereto (the "Junior Notes").  Investor has delivered to the Company
true and correct copies of signed letters received by Investor with respect to
the balance of the financing (the "FINANCING LETTERS") required for the
consummation of the transactions contemplated hereby.  A copy of each Financing
Letter is set forth in EXHIBIT B.  Assuming satisfaction of all applicable
conditions set forth in the Financing Letters and full funding thereunder, such
financing, together with the equity capital in Newco and proceeds from 

                                         -29-
<PAGE>

the issuance of the Junior Notes, will provide sufficient funds to (i) pay the
aggregate Cash Merger Price with respect to all outstanding Shares, on a fully
diluted basis, (ii) prepay, redeem, refinance or renegotiate the Company's
existing indebtedness, if required to consummate the Merger and the other
transactions contemplated hereby, and pay any and all fees, expenses, costs and
penalties in connection with any such prepayment, redemption, refinancing or
renegotiation and in connection with obtaining of the financing contemplated by
the Financing Letter, (iii) pay the fees and expenses of the Financial Advisor
and the Company's legal counsel (subject to Section 3.23 hereof), (iv)
consummate all of the other transactions contemplated by this Agreement, and (v)
provide sufficient working capital needs of the Company following the Merger (as
determined by Investor).


                                      ARTICLE V

                                      COVENANTS


5.1 CONDUCT OF BUSINESS.

    From the date hereof to the Effective Time, except as set forth on
SCHEDULE 5.1, the Company shall, and shall cause each Subsidiary to, carry on
its business in the ordinary course consistent with past practice and use
reasonable efforts to preserve intact its current business organization, keep
available the services of its current officers and employees and preserve its
relationships with customers, suppliers, licensors, licensees and others having
significant business dealings with it.  Without limiting the generality of the
foregoing, from the date hereof to the Effective Time, the Company shall not and
shall cause each Subsidiary not to (except as expressly permitted by this
Agreement or with Investor's consent, which consent shall be deemed given after
Investor's receipt of the Company's written request for a waiver of a covenant
in this Section 5.1, which request has not been rejected in writing by Investor
within three days after Investor's signed receipt thereof by overnight courier
service):

    (a)  (i) declare, set aside or pay any dividends on, or make any other
distributions in respect of, any of its capital stock other than regular
dividends on the Company's Series D Shares in accordance with the terms of such
securities, (ii) split, combine or reclassify any of its capital stock or issue
or authorize the issuance of any other securities in respect of, in lieu of or
in substitution for Shares of its capital stock, or (iii) purchase, redeem or
otherwise acquire any Shares or any capital stock of the Company or any
Subsidiary or any other securities thereof or any rights, warrants or options to
acquire any such shares or other securities;

    (b)  issue, deliver, sell, pledge or otherwise encumber any shares of its
capital stock, any other voting securities or any securities convertible into,
or any rights, warrants or options to acquire, any such shares, voting
securities or convertible securities (other than the conversion of the Company's
Series D Shares and Series C 

                                         -30-
<PAGE>

Shares, in accordance with the terms of such securities and the issuance of
Shares upon the exercise of Company Stock Options or Warrants outstanding on the
date hereof in accordance with their present terms);

    (c)  amend its Certificate of Incorporation or Bylaws or other comparable
charter or organizational documents;

    (d)  acquire or agree to acquire (i) by merging or consolidating with, or
by purchasing a substantial portion of the assets or stock of, or by any other
manner, any business or any person, other than as set forth on SCHEDULE 5.1 or
(ii) any assets except for the purchase of (x) equipment as identified on the
Commitments List or the schedule of anticipated commitments, as set forth on
SCHEDULE 5.1 (the "Anticipated Commitments List") or (y) equipment or other
assets in the ordinary course of business, provided that the amount thereof does
not exceed, individually or in the aggregate, $1,000,000, other than as set
forth on SCHEDULE 5.1;

    (e)  sell, lease, license, mortgage or otherwise encumber or subject to any
Lien or otherwise dispose of any of its properties or assets, except
(i) immaterial assets, (ii) in the ordinary course of business (including for
trade-ins) and (iii) where the amount of such sales does not exceed,
individually or in the aggregate, $1,000,000;

    (f)  except as identified on the Commitments List, the Anticipated
Commitments List or in the ordinary course of business consistent with past
practice, or as set forth in SCHEDULE 5.1 (i) incur any indebtedness or
guarantee any such indebtedness of another person, issue or sell any debt
securities or warrants or other rights to acquire any debt securities of the
Company or any Subsidiary, guarantee any debt securities of another person,
enter into any "keep well" or other agreement to maintain any financial
statement condition of another person or enter into any arrangement having the
economic effect of any of the foregoing except for short-term borrowings
incurred in the ordinary course of business consistent with past practice, or
(ii) make any loans, advances (other than advances to Subsidiaries or among
Subsidiaries) or capital contributions to, or investments in, any other person;

    (g)  make or agree to make any capital expenditure or expenditures with
respect to property, plant or equipment which, individually, is in excess of
$50,000 or, in the aggregate, are in excess of $250,000, except as identified on
the Commitments List, the Anticipated Commitments List or otherwise in the
ordinary course of business consistent with past practice in order to satisfy
actual or expected contractual commitments to customers, or as set forth in
SCHEDULE 5.1;

    (h)  make any material tax election or settle or compromise any material
income tax liability;

    (i)  (i) pay, discharge, settle or satisfy any claims, liabilities or
obligations (absolute, accrued, asserted or unasserted, contingent or
otherwise), other than the payment, discharge or satisfaction, in the ordinary
course of business consistent 

                                         -31-
<PAGE>

with past practice or in accordance with their terms, of liabilities reflected
or reserved against in the most recent consolidated financial statements (or the
notes thereto) of the Company included in the SEC Documents or incurred
thereafter in the ordinary course of business consistent with past practice, or
waive any material benefits of, or agree to modify in any material respect, any
confidentiality, standstill, non-solicitation or similar agreement to which the
Company or any Subsidiary is a party;

    (j)  modify, amend or terminate any Commitment to which the Company or any
Subsidiary is a party, or waive, release or assign any rights or claims, other
than in the ordinary course of business consistent with past practice;

    (k)  enter into any Commitment relating to the provision of services by the
Company or any Subsidiary, the maintenance of any MRI Unit or CT Unit or the
distribution, sale or marketing by third parties of the Company's or any
Subsidiary's services, including any Commitment with any hospital, clinic,
medical or healthcare provider, health maintenance organization or other
customer or third party payor, other than in the ordinary course of business
consistent with past practice;

    (l)  except as required to comply with applicable law or with Investor's
consent, (i) adopt, enter into, terminate or amend any Benefit Plan or other
arrangement for the benefit or welfare of any director, officer or current or
former employee, other than, in the case or non-officer employees, in the
ordinary course of business consistent with past practice (ii) increase in any
manner the compensation or fringe benefits of, or pay any bonus to, any director
or officer (other than as set forth on SCHEDULE 5.1), (iii) pay any material
benefit not provided for under any Benefit Plan, (iv) except as permitted in
clause (ii), grant any awards under any bonus, incentive, performance or other
compensation plan or arrangement or Benefit Plan (including the grant of stock
options, stock appreciation rights, stock based or stock related awards,
performance units or restricted stock, or the removal of existing restrictions
in any Benefit Plans or agreement or awards made thereunder) or (v) take any
action to fund or in any other way secure the payment of compensation or
benefits under any employee plan, agreement, contract or arrangement or Benefit
Plan; or

    (m)  authorize any of, or commit or agree to take any of, the foregoing
actions.

5.2 NO SOLICITATION.

    (a)  The Company shall, shall cause each Subsidiary to and shall direct and
use reasonable efforts to cause its and its Subsidiaries' officers, directors,
employees, representatives and agents to, immediately cease any discussions or
negotiations with any parties other than Investor and Newco that may be ongoing
with respect to an Alternative Transaction (as hereinafter defined).  The
Company shall not, shall cause each Subsidiary not to and shall not authorize
and shall direct and use reasonable efforts to cause its and its Subsidiaries'
officers, directors, employees and any investment banker, financial advisor,
attorney, accountant or other representative 

                                         -32-
<PAGE>

retained by it not to, directly or indirectly, (i) solicit, initiate or
encourage (including by way of furnishing information), or take any other action
to facilitate, any inquiries or the making of any proposal that may lead to an
Alternative Transaction or (ii) participate in any discussions or negotiations
regarding any proposed Alternative Transaction; PROVIDED, HOWEVER, that if,
during the 45 days following the date of this Agreement, the Board of Directors
of the Company determines in good faith, after consultation with its financial
advisors, and following receipt of written advice from outside counsel, that
action is required by reason of the Board of Directors' fiduciary duties to the
Company's stockholders under applicable law, the Company may (subject to
compliance with Section 5.2(c)), during such 45 day period, in response to an
unsolicited Third Party Proposal (as defined herein), (A) furnish information
with respect to the Company to the person making such Third Party Proposal
pursuant to a confidentiality agreement that is at least as protective of the
Company's interests as is the Confidentiality Agreement (as defined in Section
6.2), (B) participate in negotiations regarding such Third Party Proposal, and
(C) take any position (and disclose such position to its stockholders) with
regard to such Third Party Proposal pursuant to Rules 14d-9 and 14e-2
promulgated under the Exchange Act; PROVIDED, HOWEVER, that in the case of
clause (C), (x) the Company shall have provided Investor and Newco with as much
advance notice of its position and proposed disclosure as is practicable under
the circumstances, and (y) neither the Company nor its Board of Directors nor
any committee thereof shall, except as permitted by Section 5.2(b), withdraw or
modify its position with respect to the Merger or this Agreement or approve or
recommend such Third Party Proposal.  Without limiting the foregoing, it is
understood that any violation of the restrictions set forth in the preceding
sentence by any director, officer or employee of the Company or any Subsidiary
or any investment banker, financial advisor, attorney, accountant or other
representative of the Company, acting on behalf of the Company, shall be deemed
to be a breach of this Section 5.2(a) by the Company.  For purposes of this
Agreement, a "THIRD PARTY PROPOSAL" means a bona fide proposal from a third
party, which proposal did not result from a breach of this Section 5.2(a) by the
Company and which third party the Board of Directors of the Company determines
in good faith, taking into account all factors that the Board of Directors
reasonably deems relevant and upon the advice of the Company's financial
advisor, has the capacity and is reasonably likely to have the ability to
consummate a Superior Proposal (as defined in Section 8.1(g)).  For purposes of
this Agreement, an "ALTERNATIVE TRANSACTION" means any direct or indirect
acquisition or purchase of assets of the Company or any Subsidiary outside the
ordinary course of business or any outstanding equity securities of the Company
or any Subsidiary, any tender offer or exchange offer that if consummated would
result in any person beneficially owning equity securities of the Company or any
merger, consolidation, business combination, sale of substantially all the
assets, recapitalization, liquidation, dissolution or similar transaction
involving the Company or any Subsidiary, other than the transactions
contemplated by this Agreement and other than the acquisition of Shares pursuant
to the exercise of Company Stock Options or Warrants that are issued and
outstanding as of the date hereof or conversion of Series C Shares or Series D
Shares.

    (b)  Neither the Board of Directors of the Company nor any Committee
thereof shall (i) withdraw or modify, the approval or recommendation by 

                                         -33-
<PAGE>

such Board of Directors or such committee of this Agreement or the Merger, (ii)
approve or recommend, any Alternative Transaction or (iii) cause the Company to
enter into any letter of intent, agreement in principle, acquisition agreement
or other agreement, including any exclusivity agreement (an "ACQUISITION
AGREEMENT") with respect to an Alternative Transaction unless the Board of
Directors of the Company shall have previously terminated this Agreement
pursuant to Section 8.1(g).

    (c)  In addition to the obligations of the Company set forth in paragraphs
(a) and (b) of this Section 5.2, the Company shall immediately advise Investor
orally and in writing of any request for information or of any proposal or any
inquiry regarding any Alternative Transaction, the material terms and conditions
of such request, proposal or inquiry and the identity of the person making such
request, proposal or inquiry.  The Company will keep Investor fully informed of
the status and details (including amendments or proposed amendments) of any such
request, proposal or inquiry.

5.3 CERTAIN TAX MATTERS.

    From the date hereof until the Effective Time, (i) the Company and each
Subsidiary will file all tax returns and reports ("POST-SIGNING RETURNS")
required to be filed; (ii) the Company and each Subsidiary will timely pay all
taxes shown as due and payable on the Company's Post-Signing Returns that are so
filed; (iii) the Company and each Subsidiary will make provision for all taxes
payable by the Company for which no Post-Signing Return is due prior to the
Effective Time; and (iv) the Company will promptly notify Investor of any
action, suit, proceeding, claim or audit pending against or with respect to the
Company and each Subsidiary in respect of any tax where there is a reasonable
possibility of a determination or decision which would reasonably be expected to
have a significant adverse effect on the Company's or any Subsidiary's tax
liabilities or tax attributes.

5.4 OTHER ACTIONS.

    The Company shall not, and shall cause each Subsidiary not to, take or omit
to take any action, the taking or omission of which would reasonably be expected
to result in (a) any of the representations and warranties of the Company set
forth in this Agreement becoming untrue or inaccurate or (b) any of the
conditions set forth in Section 7.2 not being satisfied (subject to the
Company's right to take actions specifically permitted by Section 5.1, Section
5.2 or Section 8.1).

5.5 ADVICE OF CHANGES; FILINGS.

    The Company shall confer with Investor on a regular and frequent basis as
reasonably requested by Investor, report on operational matters and promptly
advise Investor orally and, if requested by Investor, in writing, of any
material change with respect to the Company or any Subsidiary.  The Company
shall promptly provide to Investor (or its counsel) copies of all filings made
by the Company or any Subsidiary 

                                         -34-
<PAGE>

with any Governmental Entity in connection with this Agreement and the
transactions contemplated hereby.

5.6 FINANCIAL INFORMATION.

    The Company shall furnish to Investor the following financial information
(all to be prepared in accordance with generally accepted accounting principles
consistently applied):

    (a)  as soon as available but in any event within 20 days of each calendar
month, the unaudited consolidated balance sheets and income statements of the
Company, showing its financial condition as of the close of such month and the
results of operations during such month and for the then elapsed portion of the
Company's fiscal year, in each case, setting forth the comparative figures for
the corresponding month in the prior fiscal year and the corresponding elapsed
portion of the prior fiscal year; and

    (b)  all documents filed with or submitted to the SEC by the Company
simultaneously with such filing or submission.

5.7 REDEMPTION OF PREFERRED STOCK AND SENIOR DEBT.

    The Company shall cause (a) all of its outstanding shares of Preferred
Stock (including the Series C Shares and the Series D Shares; provided that in
the case of the Series C Shares, Investor will give the Company at least 35 days
notice of the anticipated Election Date) to be redeemed or converted into Shares
on or prior to the Election Date in accordance with the terms set forth in the
applicable Certificates of Designation and (b) all of its outstanding Senior
Notes to be redeemed on or prior to the Election Date in accordance with their
terms.  

5.8 REFINANCING OF OUTSTANDING INDEBTEDNESS.

    The Company will use all commercially reasonable efforts to cause
satisfaction of the condition set forth in Section 7.3(h) of this Agreement, to
the extent requested by Investor.

5.9 MATTERS INVOLVING SMT 

    (a)  The Company (and where applicable, the Investor) covenants and agrees
that, prior to the Effective Time, it shall (i) cause the formation of a new
Delaware corporation, all of the capital stock of which shall be owned by the
Company ("SMT ACQUISITION") and (ii) if Three Rivers Acquisition Corp., a
Delaware corporation ("THREE RIVERS ACQUISITION"), becomes the owner of all of
the shares of common stock, par value $.01, of SMT Health Services Inc., a
Delaware corporation ("SMT"), assuming the exercise of all options, warrants and
other rights to acquire shares of common stock, par value $.01, of SMT, the
Company shall (subject to the performance by the Investor of its covenants set
forth in Section 5.9(d)) cause SMT Acquisition to 

                                         -35-
<PAGE>

enter into an Agreement and Plan of Merger (the "SMT/ALLIANCE MERGER 
AGREEMENT") among Three Rivers Holding Corp. and the Company pursuant to 
which, if Three Rivers Acquisition is merged (the "SMT/Three Rivers Merger") 
with and into SMT on the terms and conditions set forth in the Agreement and 
Plan of Merger dated as of June 24, 1997 (the "SMT/THREE RIVERS MERGER 
AGREEMENT"), among SMT, Three Rivers Holding Corp., a Delaware corporation 
("THREE RIVERS HOLDING CORP.") and Three Rivers Acquisition, and the other 
conditions set forth in Section 5.9(c) shall have been satisfied or waived 
then, promptly after the Effective Time, (A) SMT Acquisition and Three Rivers 
Holding Corp. shall be merged (the "SMT/ALLIANCE MERGER"), (B) each share of 
SMT Acquisition issued and outstanding as of the effective time of the 
SMT/Alliance Merger will be converted into one fully paid and non-assessable 
share of common stock, par value $.01, of Three Rivers Holding Corp., as the 
surviving corporation, and (C) the shares of common stock, par value $.01, of 
Three Rivers Holding Corp. outstanding immediately prior to the effective 
time of the SMT/Alliance Merger would be converted into, in the aggregate, 
3,181,818 fully paid and non-assessable Shares of the Company as the 
Surviving Corporation of the Merger.

    (b)  The Company further covenants and agrees that (i) if the SMT/Alliance
Merger Agreement is executed prior to the mailing of the Proxy
Statement/Prospectus, it shall, if requested by the Investor, submit the
SMT/Alliance Merger Agreement and the SMT/Alliance Merger to its shareholders
for the shareholders' approval at the Special Meeting and (ii) it will cause SMT
Acquisition to consummate the transactions contemplated by the SMT/Alliance
Merger Agreement, pursuant to the terms and subject to the conditions set forth
therein.

    (c)  Notwithstanding anything to the contrary contained herein, the
consummation of the transactions contemplated by the SMT/Alliance Merger
Agreement shall be subject to reasonable and customary terms and conditions,
including the satisfaction or waiver of the following conditions:

         (i)   the SMT/Three Rivers Merger shall have been consummated in
    accordance with the terms and conditions of the SMT/Three Rivers Merger
    Agreement;

         (ii)  the Merger shall have been consummated in accordance with the
    terms of this Agreement;

         (iii) the waiting period applicable to the consummation of the
    SMT/Alliance Merger under the HSR Act, if applicable, shall have expired or
    shall have been terminated; and

         (iv)  no statute, rule, regulation, executive order, decree or
    injunction shall have been enacted, entered, promulgated or enforced by any
    court or Governmental Authority that prohibits or materially restricts the
    consummation of the SMT/Alliance Merger or makes such 

                                         -36-
<PAGE>

    consummation illegal (each party agreeing to use commercially reasonably
    efforts to have any such prohibition lifted).

    (d)  The Investor covenants and agrees that if Three Rivers Acquisition
becomes the owner of all of the shares of common stock, par value $.01, of SMT
(excluding any shares of such common stock and options and other rights to
acquire such common stock that may be issued to management of SMT in connection
with the transactions contemplated by the SMT/Three Rivers Merger Agreement),
assuming the exercise of all options, warrants and other rights to acquire
shares of common stock, par value $.01, of SMT, the Investor shall (x) (subject
to the performance by the Company of its covenants set forth in Section 5.9(a))
cause Three Rivers Holding Corp. to enter into the SMT/Alliance Merger Agreement
with SMT Acquisition and to consummate the transactions contemplated thereby;
and (y) concurrently with such consummation, cause the Company to redeem all
Junior Notes then outstanding for the unpaid principal amount thereof plus
accrued interest and otherwise in accordance with the terms thereof.
    

5.10     INSURANCE.     

    The Company shall maintain the Insurance Policies in full force and effect.


                                      ARTICLE VI

                                ADDITIONAL AGREEMENTS


6.1 PREPARATION OF PROXY STATEMENT/PROSPECTUS.

    The Company shall, as soon as practicable, prepare and file a preliminary
Proxy Statement/Prospectus with the SEC, reasonably satisfactory to Investor,
and will use its best efforts to respond to any comments of the SEC and its
staff and to cause the Proxy Statement/Prospectus to be declared effective and
mailed to the Company's stockholders as promptly as practicable after responding
to all such comments to the satisfaction of the SEC or its staff.  The Company
will notify Investor promptly of the receipt of any comments from the SEC or its
staff and of any request by the SEC or its staff for amendments or supplements
to the Proxy Statement/Prospectus or for additional information and will supply
Investor with copies of all correspondence between the Company or any of its
representatives, on the one hand, and the SEC or its staff, on the other hand,
with respect to the Proxy Statement/Prospectus or the Merger.  If at any time
prior to the Stockholders Meeting there shall occur any event that should be set
forth in an amendment or supplement to the Proxy Statement/Prospectus, the
Company will promptly prepare and mail to its stockholders such an amendment or
supplement.  The Company will not mail any Proxy Statement/Prospectus, or any
amendment or 

                                         -37-
<PAGE>

supplement thereto, to which Investor reasonably objects, unless required by
law, rule, regulation or the SEC staff, in the opinion of outside counsel;
PROVIDED, that Investor shall identify its objections and fully cooperate with
the Company to create a mutually satisfactory Proxy Statement/Prospectus.  In
connection with such preliminary Proxy Statement/Prospectus, Proxy
Statement/Prospectus and any amendment or supplement thereto, Investor and, from
and after formation, Newco shall promptly provide all information reasonably
requested by the Company.

6.2 ACCESS TO INFORMATION; CONFIDENTIALITY.

    The Company and its Subsidiaries shall afford to Investor, and to
Investor's officers, employees, accountants, counsel, financial advisers and
other representatives, reasonable access during normal business hours from the
date hereof to the Effective Time to all their respective properties, books,
contracts, commitments, personnel and records and, during such period, the
Company shall furnish promptly to Investor (a) a copy of each report, schedule,
registration statement and other document filed by it during such period
pursuant to the requirements of Federal or state securities laws and (b) all
other information concerning its business, properties and personnel as Investor
may reasonably request.  Investor will hold, and will cause its officers,
employees, accountants, counsel, financial advisers and other representatives
and Affiliates to hold, any and all information received from the Company,
directly or indirectly, in confidence, according to the terms of the
confidentiality agreement dated as of April 25, 1997, between the Company and an
affiliate of Investor (the "CONFIDENTIALITY AGREEMENT"). 

6.3 REASONABLE EFFORTS; NOTIFICATION.

    (a)  Upon the terms and subject to the conditions set forth in this
Agreement, each of the parties agrees to use all commercially reasonable efforts
to take, or cause to be taken, all actions, and to do, or cause to be done, and
to assist and cooperate with the other parties in doing, all things necessary,
proper or advisable to consummate and make effective, in the most expeditious
manner practicable, the Merger, and the other transactions contemplated by this
Agreement, including (i) the obtaining of all necessary actions or nonactions,
waivers, consents and approvals from Governmental Entities and the making of all
necessary registrations and filings (including filings with Governmental
Entities, if any) and the taking of all reasonable steps as may be necessary to
obtain an approval or waiver from, or to avoid an action or proceeding by, any
Governmental Entity, (ii) the obtaining of all necessary consents, approvals or
waivers from third parties, (iii) the defending of any lawsuits or other legal
proceedings, whether judicial or administrative, challenging this Agreement or
the consummation of any of the transactions contemplated by this Agreement,
including seeking to have any stay or temporary restraining order entered by any
court or other Governmental Entity vacated or reversed, (iv) the execution and
delivery of any additional instruments necessary to consummate the transactions
contemplated by, and to fully carry out the purposes of, this Agreement,
(v) reasonably cooperating with all potential sources of financing to Investor
in connection with the Merger, and the other transactions contemplated by this 

                                         -38-
<PAGE>

Agreement, and the taking of all reasonable steps as may be necessary or 
advisable to consummate one or more financing transactions with such 
potential sources of financing, including participating in "road shows" with 
respect to the issuance of securities in one or more private placements or 
transactions registered under the Securities Act, (vi) if necessary to obtain 
recapitalization accounting treatment of the Merger and the transactions 
contemplated by this Agreement, taking reasonable actions to restructure the 
Merger and the transactions contemplated by this Agreement and (vii) with 
respect to any Shares that Investor has acquired by exercise of any option 
pursuant to the Stockholder Agreement or otherwise, or which Investor has the 
right to vote, including, without limitation, pursuant to a proxy granted 
pursuant to the Stockholder Agreement or otherwise, Investor's voting or 
causing the voting in favor of, or granting or causing the granting of 
consent or approval with respect to, the Merger and the adoption by the 
Company of the Merger Agreement and, if applicable, the SMT/Alliance Merger 
Agreement and SMT/Alliance Merger.  In connection with and without limiting 
the foregoing, the Company and its Board of Directors shall (i) take all 
action necessary to ensure that no state takeover statute or similar statute 
or regulation is or becomes applicable to the Merger, this Agreement, the 
Stockholder Agreement or any of the other transactions contemplated by this 
Agreement or the Stockholder Agreement and (ii) if any state takeover statute 
or similar statute or regulation becomes applicable to the Merger, this 
Agreement, the Stockholder Agreement or any other transaction contemplated by 
this Agreement or the Stockholder Agreement, take all action reasonably 
necessary to ensure that the Merger and the other transactions contemplated 
by this Agreement may be consummated as promptly as practicable on the terms 
contemplated by this Agreement and otherwise to minimize the effect of such 
statute or regulation on the Merger, this Agreement, the Stockholder 
Agreement and the other transactions contemplated by this Agreement or the 
Stockholder Agreement.  Nothing in this Agreement shall be deemed to require 
Investor to dispose of or hold separate any asset or collection of assets.

    (b)  The Company shall give prompt notice to Investor of, to the knowledge
of the Company (i) any representation or warranty made by it contained in this
Agreement becoming untrue or inaccurate or (ii) the failure by it or any
Subsidiary to comply with or satisfy any covenant, condition or agreement to be
complied with or satisfied by it or any Subsidiary under this Agreement;
PROVIDED, HOWEVER, that no such notification shall affect the representations,
warranties, covenants or agreement of the parties or the conditions to the
obligations of the parties under this Agreement.

    (c)  Each of Investor and, from and after formation, Newco shall give
prompt notice to the Company of, to the knowledge of Investor or Newco (i) any
representation or warranty made by it contained in this Agreement becoming
untrue or inaccurate or (ii) the failure by it to comply with or satisfy any
covenant, condition or agreement to be complied with or satisfied by it under
this Agreement, or any adverse development with respect to the financing
contemplated by the Financing Letters referred to in Section 4.7; PROVIDED,
HOWEVER, that no such notification shall affect the representations, warranties,
covenants or agreements of the parties or the conditions to the obligations of
the parties under this Agreement.
    
                                         -39-
<PAGE>

6.4 STOCK OPTION PLANS AND WARRANTS.

    (a)  As soon as practicable following the date hereof but in no event later
than the Effective Time, the Company (or, if appropriate, the Board of Directors
of the Company or any committee administering the Stock Option Plans (as defined
below)) shall take action, including by adopting resolutions or taking any other
actions, so as to allow each outstanding option to purchase Shares (a "COMPANY
STOCK OPTION") heretofore granted under any stock option, stock appreciation
rights or stock purchase plan, program or arrangement of the Company
(collectively, the "STOCK OPTION PLANS") and each outstanding warrant or other
right or option to purchase Shares (a "WARRANT") in each case outstanding
immediately prior to the date hereof, whether or not then exercisable, either
(i) shall be canceled at the Effective Time in exchange for an amount in cash,
payable at the time of such cancellation, equal to the product of (x) the number
of Shares subject to such Company Stock Option or Warrant immediately prior to
the Effective Time and (y) the excess of the Cash Merger Price over the per
Share exercise price of such Company Stock Option or Warrant (the "NET AMOUNT")
or (ii) shall be converted immediately prior to the Effective Time into the
right solely to receive the Net Amount; PROVIDED, that no such cash payment has
been made.  The Company shall not make, or agree to make, any payment of any
kind to any holder of a Company Stock Option or a  Warrant (except for the
payment described above) without the consent of Investor (which consent will not
be unreasonably withheld).

    (b)  All Stock Option Plans shall be terminated as of the Effective Time
and the provisions in any other Benefit Plan providing for the issuance,
transfer or grant of any capital stock of the Company or any interest in respect
of any capital stock of the Company shall be terminated as of the Effective
Time.  The Company shall ensure that following the Effective Time, no holder of
a Company Stock Option or Warrant or any participant in any Stock Option Plan
shall have any right thereunder to acquire any capital stock of the Company,
Investor or the Surviving Corporation, except as agreed to otherwise by the
Investor.

    (c)  The Surviving Corporation shall continue to be obligated to pay the
Net Amount to holders of any Company Stock Options or Warrants converted in
accordance with clause (y) of Section 6.4(a).

    (d)  The Company shall pay its portion and withhold and deposit the proper
amount of all Federal and state payroll and employment taxes required to be paid
and withheld from the Net Amount.

6.5 INDEMNIFICATION, EXCULPATION.

    (a)  All rights to indemnification and exculpation (including the
advancement of expenses) from liabilities for acts or omissions occurring at or
prior to the Effective Time (including with respect to the transactions
contemplated by this Agreement) existing as of the date hereof in favor of the
current or former directors, 

                                         -40-
<PAGE>

officers and employees of the Company, as provided in the Company's or
Subsidiary's Certificate of Incorporation and/or its By-laws and/or any
indemnification agreements and pursuant to applicable law shall be assumed by
the Surviving Corporation in the Merger, without further action, as of the
Effective Time and shall survive the Merger and shall continue in full force and
effect without amendment, modification or repeal in accordance with their terms
for a period of not less than 5 years after the Effective Time; PROVIDED,
HOWEVER, that if any claims are asserted or made within such period, all rights
to indemnification (and to advancement of expenses) hereunder in respect of any
such claims shall continue, without diminution, until disposition of any and all
such claims.

    (b)  For a period of at least five years after the Effective Time, the
Surviving Corporation shall cause to be maintained in effect standard policies
of directors' and officers' liability insurance in an aggregate coverage amount
not less than the coverage amounts maintained by the Company as of the date
hereof and including coverage with respect to claims arising from facts or
events which occurred before the Effective Time to the extent available.

    (c)  The provisions of this Section 6.5 are intended to be for the benefit
of, and will be enforceable by, each indemnified party, his or her heirs and his
or her representatives.

6.6 REGISTRATION RIGHTS AGREEMENT.

    Prior to the Effective Time, the Company shall execute and deliver to
Investor a registration rights agreement (the "REGISTRATION RIGHTS AGREEMENT")
in a form mutually acceptable to Investor and the Company, such agreement to
provide Investor with three demand registration rights and unlimited piggyback
and S-3 registration rights for its Shares, all subject to customary terms and
provisions.

6.7 [INTENTIONALLY OMITTED].

    

6.8 DIRECTORS.

    At the Effective Time, Investor shall be entitled to designate such number
of directors (the "INVESTOR NOMINEES") of the Surviving Corporation as will give
Investor a majority of such directors.  In connection with the foregoing,
immediately following receipt of Shareholder Approval, the Company will obtain a
resignation from each director of the Company unless Investor requests
otherwise.

6.9 FEES AND EXPENSES.

    (a)  Except as otherwise provided herein and as provided below in this
Section 6.9, all fees and expenses incurred in connection with the Merger, this 

                                         -41-
<PAGE>

Agreement and the transactions contemplated by this Agreement shall be paid by
the party incurring such fees or expenses, whether or not the Merger is
consummated.

    (b)  If this Agreement is terminated (i) pursuant to Section 8.1(g),
(ii) by Investor pursuant to Section 8.1(b) or 8.1(e) as a result of any willful
breach by the Company of any covenant or agreement made in this Agreement or
(iii) by Investor pursuant to Section 8.1(b) or 8.1(e) as a result of any
failure or failures to be true as of the date hereof of one or more of the
representations and warranties made by the Company in this Agreement, which
failures to be true are reasonably expected to have an aggregate negative impact
on the value of the Company and its Subsidiaries taken as a whole (a "Negative
Impact"), of $25 million or more, the Company shall pay to Investor within 90
days of such termination (except for any termination pursuant to Section 8.1(g),
in which case payment shall be made promptly upon such termination) $10,000,000
(or, in the case of clause (iii), $5,000,000) plus all Expenses (as defined
below).

    (c)  If this Agreement is terminated (i) by Investor pursuant to
Section 8.1(b) or 8.1(e) as a result of any breach by the Company, other than a
willful breach, of any covenant or agreement made in this Agreement, (ii) by
Investor pursuant to Section 8.1(b) or 8.1(e) as a result of any failure or
failures to be true as of the date hereof of one or more representations and
warranties made by the Company in this Agreement which failures to be true in
the aggregate have a Negative Impact of less than $25 million, (iii) by Investor
pursuant to Section 8.1(b) or 8.1(e) as a result of any failure or failures to
be true as of the time of such termination one or more representations and
warranties, which representations and warranties were true as of the date
hereof, (iv) by Investor pursuant to Section 8.1(b) as a result of a failure of
the condition set forth in Section 7.3(c) to be satisfied, or (v) pursuant to
Section 8.1(f), the Company shall promptly pay to Investor all Expenses, and,
if, within 180 days of such termination either an Alternative Transaction shall
be consummated or the Company shall enter into an Acquisition Agreement
providing for an Alternative Transaction (in either event, the "Tail Condition")
then the Company shall pay to Investor, upon the closing of such transaction, if
and whenever it occurs, $5,000,000. 

    (d)  If this Agreement is terminated by Investor pursuant to 8.1(b) as a
result of a failure of the condition set forth in Section 7.1(a) to be satisfied
or pursuant to Section 8.1(d), the Company shall pay to Investor all Expenses,
and if the Tail Condition is subsequently satisfied, shall pay to Investor upon
the closing of the relevant transaction, if and whenever it occurs, $10,000,000
; provided, however that no amounts whatsoever shall be payable to Investor
under this Section 6.9(d) if, at the Special Meeting or any adjournments or
postponements thereof, the Investor fails to vote or cause to be voted, or fails
to grant or to cause the granting of consent or approval with respect to, any
Shares owned by it or any Affiliate thereof or as to which it or any Affiliate
thereof has voting rights, in favor of the Merger and the adoption by the
Company of the Merger Agreement and, if applicable, the SMT/Alliance Merger
Agreement and SMT/Alliance Merger. 

                                         -42-
<PAGE>

    (e)  If this Agreement is terminated (i) by Investor pursuant to
Section 8.1(b) in connection with the failure of any of the conditions set forth
in any of the following Sections:  7.1(b), 7.1(c), 7.1(d), 7.3(b), 7.3(d),
7.3(e), 7.3(f), 7.3(g), 7.3(h) or 7.3(i) and the Tail Condition is subsequently
satisfied or (ii) by Investor pursuant to Section 8.1(c) and the Tail Condition
is subsequently satisfied, the Company shall pay to Investor, upon the closing
of the relevant transaction, if and whenever it occurs, $5,000,000 plus
Expenses.  

    (f)  The Company acknowledges that the agreements contained in this
Section 6.9 are an integral part of the transactions contemplated by this
Agreement, and that, without these agreements, Investor would not enter into
this Agreement.  Accordingly, if the Company fails promptly to pay any amount
due pursuant to this Section 6.9, and, in order to obtain such payment, Investor
commences a suit which results in a judgment against the Company for the amounts
set forth in this Section 6.9, the Company shall pay to Investor all costs and
expenses (including attorneys' fees and expenses) in connection with such suit,
together with interest on such amounts (excluding Investor's costs and expenses)
at the prime rate of the Bankers Trust Company in effect on the date such
payment was required to be made.  If such a suit results in a judgment against
Investor and/or Newco, Investor shall pay to the Company all costs and expenses
(including attorney's fees and expenses) in connection with such suit. 
"EXPENSES" shall mean all reasonably documented out-of-pocket expenses incurred
by Investor and Newco in connection with this Agreement (including the financing
contemplated hereby), the Stockholder Agreement and the transactions
contemplated hereby and thereby, including fees and expenses of its, and its
financing sources', printer, consultants, attorneys, accountants, and other
advisors; provided, however, that (i) such expenses shall not include any
advisory or similar fees paid to Investor or any Affiliate thereof or to any
investment banking firm or placement agent retained in connection with the
financing contemplated by this Agreement, and (ii) unless the Company has
previously agreed in writing to increase such amount, the aggregate amount of
such Expenses shall not exceed (i) $3,000,000 if such termination occurs prior
to September 1, 1997, or (ii) $5,000,000 if such termination occurs thereafter
(the parties further agreeing that such amounts shall be reduced, dollar for
dollar, to the extent that the Company funds the expenses (excluding for the
services of the Company's professionals) of filing or printing the Proxy
Statement/Prospectus or the solicitation of proxies with respect thereto).

    (g)   After the Effective Time, the Company will pay to an Affiliate of
Investor a fee of $2,500,000 in connection with arranging the transactions
contemplated hereby (including the financings thereof) and an annual management
fee of $500,000 and agree to continue to receive financial advisory services
from such Affiliate on an ongoing basis with compensation to be determined.

6.10     PUBLIC ANNOUNCEMENTS.

    Investor and, from and after formation, Newco, on the one hand, and the
Company, on the other hand, will consult with each other before issuing, and
provide each other the opportunity to review and comment upon, any press release
or other 

                                         -43-
<PAGE>

public statements with respect to the transactions contemplated by this
Agreement and shall not issue any such press release or make any such public
statement prior to such consultation, except as may be required by applicable
law, court process or by obligations pursuant to any listing agreement with any
national securities exchange or national securities quotation system.  The
parties agree that the initial press release to be issued with respect to the
transactions contemplated by this Agreement shall be in the form heretofore
agreed to by the parties.

6.11     STOP TRANSFER.

    The Company shall not register the transfer of any certificate representing
any Subject Shares (as defined in the Stockholder Agreement), unless such
transfer is made to Investor or Newco or otherwise in compliance with the
Stockholder Agreement.  The Company will inscribe upon any certificates
representing Subject Shares submitted by a Stockholder (as defined in the
Stockholder Agreement) for such purpose the following legend:

    "THE SHARES OF [COMMON STOCK] [PREFERRED STOCK], $.01 PAR VALUE OF
    ALLIANCE IMAGING, INC. REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO
    A STOCKHOLDERS AGREEMENT DATED AS OF JULY 23, 1997, AND MAY NOT BE
    SOLD OR OTHERWISE TRANSFERRED, EXCEPT IN ACCORDANCE THEREWITH.  COPIES
    OF SUCH AGREEMENT MAY BE OBTAINED AT THE PRINCIPAL EXECUTIVE OFFICES
    OF ALLIANCE IMAGING, INC."


                                     ARTICLE VII

                                      CONDITIONS

7.1 CONDITIONS TO EACH PARTY'S OBLIGATION TO EFFECT THE MERGER.

    The respective obligations of each party to effect the Merger are subject
to the satisfaction or waiver, where permissible, prior to the Effective Time,
of the following conditions:

    (a)  The Company Stockholder Approval shall have been obtained as required
by and in accordance with applicable law and the Certificate of Incorporation.

    (b)  No statute, rule, regulation, executive order, decree or injunction
shall have been enacted, entered, promulgated or enforced by any court or
Governmental Entity that prohibits or restricts the consummation of the Merger
or makes 

                                         -44-
<PAGE>

such consummation illegal (each party agreeing to use commercially reasonable
efforts to have any such prohibition lifted).

    (c)  The waiting period applicable to the consummation of the Merger under
the HSR Act shall have expired or been terminated.

    (d)  The Registration Statement on Form S-4 (or an alternative form
prescribed by the SEC) shall have been declared effective and shall not be the
subject of any stop order, unless the parties shall have mutually determined
that registration under the Securities Act is not required with respect to the
Merger.

7.2 CONDITIONS TO THE COMPANY'S OBLIGATION TO EFFECT THE MERGER.

    The obligation of the Company to effect the Merger shall be subject to the
satisfaction or waiver, prior to the proposed Effective Time, of the following
conditions:  All of the representations and warranties of Investor and Newco set
forth in this Agreement shall be true and correct in all material respects as of
the date hereof and (except for those that are expressly made only as of another
date) as of the Effective Time as though made on and as of such time, and
Investor and Newco shall have performed in all material respects all covenants
and agreements required to be performed by then under this Agreement at or prior
to the Effective Time.

7.3 CONDITIONS TO INVESTOR'S AND NEWCO'S OBLIGATIONS TO EFFECT THE MERGER.

    The obligations of Investor and Newco to effect the Merger shall be subject
to the satisfaction or waiver by Investor and Newco, prior to the proposed
Effective Time, of the following conditions:

    (a)  All of the representations and warranties of the Company set forth in
this Agreement, shall be true and correct in all material respects as of the
date hereof and (except for those that are expressly made only as of another
date) as of the Effective Time as though made on and as of such time, and the
Company shall have performed in all material respects all covenants and
agreements required to be performed by it under this Agreement at or prior to
the Effective Time.

    (b)  None of the following shall have occurred (i) any general suspension
of trading in, or limitation on prices for, securities on the New York Stock
Exchange or the NASDAQ, (ii) a declaration of a banking moratorium or any
suspension of payments in respect of banks in the United States or any
limitation by federal or state authorities on the extension of credit by lending
institutions, or a disruption of or material adverse change in either the
syndication market for credit facilities or the financial, banking or capital
markets,  (iii) a commencement of a war or armed hostilities or other national
or international calamity directly or indirectly involving the United States or
(iv) in the case of any of the foregoing existing as of the date hereof, a
material acceleration or worsening thereof.

                                         -45-
<PAGE>

    (c)  There shall not have occurred any material adverse change.

    (d)  The conditions set forth in the Financing Letters shall have been
satisfied or waived and the funding referred to therein shall be available to
Investor and Newco on terms no less favorable to Investor and Newco than are set
forth in such Financing Letters, unless the failure of such conditions to be
satisfied or waived, or the non-availability of such funds is caused solely by
any actions or failures to act of Investor or Newco that constitute a breach of
any representation, warranty or covenant of either of them set forth in this
Agreement.

    (e)  All filings required to be made prior to the Effective Time with, and
all consents, approvals, authorizations and Permits required to be obtained
prior to the Effective Time from, any Governmental Entity in connection with the
consummation of the Merger, have been made and/or obtained, other than those the
failure of which to be made and/or obtained would not reasonably be expected to
have a material adverse effect or prevent or materially delay the consummation
of the Merger.

    (f)  All notices required to be given prior to the Effective Time with, 
and all consents, approvals, authorizations, waivers and amendments required 
to be obtained prior to the Effective Time from, any third party in 
connection with the consummation of the Merger and the finances thereof, have 
been made and/or obtained (or, if the notice, consent, approval, 
authorization, waiver or amendment that is not so made and/or obtained is 
required pursuant to the terms of any of the Company's indebtedness or 
obligations for money borrowed, the Company repays such indebtedness or 
obligation on or prior to the Effective Time), other than those the failure 
of which to be made and/or obtained would not reasonably be expected to have 
a material adverse effect or prevent or materially delay the consummation of 
the Merger; provided that the Company shall have obtained the items set forth 
on SCHEDULE 7.3(f).

    (g)  Investor shall have received advice from Ernst & Young LLP that the
Merger will qualify for recapitalization accounting treatment in accordance with
GAAP consistently applied.

    (h)  The Company shall have taken appropriate steps to arrange for the
payment or prepayment of capital leases, promissory notes and other loan or
financing obligations (collectively, "Obligations"; provided, that such term
shall not include (i) obligations under operating leases classified as such in
accordance with GAAP or (ii) any obligations incurred from and after October 1,
1997) to which the Company or any Subsidiary is a party or by which the assets
or properties of the Company or any Subsidiary are bound (including those in
respect of MRI Units and CT Units), such that, immediately following the
Effective Time (and assuming the receipt of equity and debt financing by the
Company in connection with the Merger, as contemplated by this Agreement), the
Company will be able to pay (or prepay) the aggregate amount of all such
Obligations, including the amount of any prepayment penalties or similar
payments related thereto (but excluding from such aggregate amount (i) no more
than an aggregate principal amount of $10 million of Obligations that the
Company elects to leave 

                                         -46-
<PAGE>

outstanding (the "CARRYOVER OBLIGATIONS") and (ii) accrued interest on the
Obligations being paid) for an amount not to exceed $76,000,000 (assuming that
all regular payments due on or before October 1, 1997 in respect of the
Obligations have been paid);  provided, further that (x) the consummation of the
Merger will neither give rise to a right of acceleration of, nor constitute an
event of default under the terms of, any Carryover Obligations, except, in
either case, as set forth on SCHEDULE 7.3(h) and (y) the Company will not incur
additional indebtedness or financing obligations (again, excluding operating
leases) during the fourth quarter of 1997 in excess of an aggregate principal or
face amount thereof equal to $11 million.

    (i)  The holders of less than 10% of the outstanding Shares shall have
validly elected to demand the appraisal of their Shares pursuant to Section 262
of the DGCL.


                                     ARTICLE VIII

                              TERMINATION AND AMENDMENT


8.1 TERMINATION.

    This Agreement may be terminated at any time prior to the Effective Time,
whether before or after approval of the terms of this Agreement by the
stockholders of the Company as follows:

    (a)  By mutual written consent of Investor and the Company.

    (b)  By either Investor or the Company if the Effective Time shall not have
occurred on or before December 31, 1997 (provided that the right to terminate
this Agreement under this Section 8.1(b) shall not be available to any party
whose failure to fulfill any obligation under this Agreement has been the cause
of or resulted in the failure of the Effective Time to occur on or before such
date).

    (c)  By either Investor or the Company if any Governmental Entity shall
have issued an order, decree or ruling or taken any other action permanently
enjoining, restraining or otherwise prohibiting the Merger and such order,
decree or ruling or other action shall have become final and nonappealable.

    (d)  By either Investor or the Company if the Company Stockholder Approval
is not obtained by reason of the failure to obtain the required vote upon a vote
held at a duly called meeting of stockholders or at any adjournment thereof.

    (e)  By Investor, if (x) any of the representations and warranties of the
Company contained in this Agreement shall fail to be true and correct in any
material respect, in each case either as of when made or (except for
representations and 

                                         -47-
<PAGE>

warranties made only as of a specific date) have since become, and at the time
of termination remain, untrue in any material respect, or (y) the Company shall
have breached or failed to comply in any material respect with any of its
obligations under this Agreement (other than as a result of a breach by the
Investor or the Newco of any of their obligations under this Agreement) and such
breach of failure shall continue unremedied for ten (10) days after the Company
has received written notice from the Investor or the Newco of the occurrence of
such breach or failure; PROVIDED, HOWEVER, that in remedying any such breach or
failure the Company shall not have spent any money, incurred any liabilities or
undertaken any obligations that, individually or together with the breach or
failure so remedied, would itself constitute a breach of or failure to perform
any representation, warranty or covenant of this Agreement.

    (f)  By Investor if there shall have occurred any material adverse change.

    (g)  By either Investor or the Company if, prior to the Effective Time, (i)
the Board of Directors of the Company determines that a Third Party Proposal for
an Alternative Transaction constitutes a Superior Proposal (as defined below),
(ii) the Company promptly notifies Investor of its determination in writing,
which writing shall set forth the terms and conditions of the Third Party
Proposal and the identity of the person making the Third Party Proposal, (iii)
ten days have elapsed following receipt by Investor of such written notice, (iv)
during such ten day period the Company cooperates with Investor with the intent
of enabling, but not obligating, Investor and the Company to agree to a
modification of the terms and conditions of this Agreement so that the
transactions contemplated hereby may be effected, and (v) at the end of such ten
day period, the Board of Directors of the Company continues to believe that such
Third Party Proposal constitutes a Superior Proposal and the Company pays to
Investor the amount specified under Section 6.9(b) pursuant to the terms
thereof.  For purposes of this Agreement, a "SUPERIOR PROPOSAL" means any Third
Party Proposal to acquire, directly or indirectly at least 80% of the Shares or
all or substantially all of the assets of the Company; PROVIDED that (i) the
Board of Directors of the Company determines in its good faith judgment
(following consultation with and the receipt of the advice of the Company's
financial advisor) that such Third Party Proposal is on terms that are more
favorable to the Company's stockholders than the Merger (taking into account all
factors that the Board of Directors reasonably deems relevant, including, in the
judgment of the Board of Directors, the amount and form of consideration to be
received in respect of Shares, and the timing of, and likelihood of closing such
proposal and the relative value of any non-cash consideration) and (ii) the
Board of Directors of the Company determines in its good faith judgment
(following receipt of the written advice of its outside counsel) that the
failure to recommend or accept such Third Party Proposal would violate the
fiduciary duties of the Board of Directors of the Company to stockholder under
applicable law.

    (h)  by the Company if (i) any of the representations and warranties of the
Investor or the Newco contained in this Agreement shall fail to be true and
correct in any material respect, in each case either when made or (except for
representations and 

                                         -48-
<PAGE>

warranties made only as of a specific date) have since become, and at the time
of termination remain, untrue in any material respect, or (ii) Investor or the
Newco shall have breached or failed to comply in any material respect with any
of its obligations under this Agreement (other than as a result of a breach by
the Company of any of its obligations under this Agreement) and such breach or
failure shall continue unremedied for ten (10) days after the Investor or the
Newco has received written notice from the Company of the occurrence of such
breach or failure; PROVIDED, HOWEVER, that in remedying any such breach or
failure neither Investor nor Newco shall have spent any money, incurred any
liabilities or undertaken any obligations that, individually or together with
the breach or failure so remedied, would itself constitute a breach of or
failure to perform any representation, warranty or covenant of this Agreement.

8.2 EFFECT OF TERMINATION.

    In the event of a termination of this Agreement by either the Company or
Investor as provided in Section 8.1, this Agreement shall forthwith become void
and there shall be no liability or obligation on the part of Investor, Newco or
the Company or their respective officers or directors, except with respect to
Section 4.6, the last sentence of Section 6.2, Section 6.9, Section 8.1, this
Section 8.2 and Article IX; PROVIDED, HOWEVER, that nothing herein shall relieve
any party for liability for any breach hereof.

8.3 [INTENTIONALLY OMITTED]

    

8.4 EXTENSION; WAIVER.

    At any time prior to the Effective Time, the parties hereto, by action
taken or authorized by their respective Boards of Directors, may, to the extent
legally allowed, (i) extend the time for the performance of any of the
obligations or other acts of the other parties hereto, (ii) waive any
inaccuracies in the representations and warranties contained herein or in any
document delivered pursuant hereto or (iii) subject to Section 8.3, waive
compliance with any of the agreements or conditions contained herein.  Any
agreement on the part of a party hereto to any such extension or waiver shall be
valid only if set forth in a written instrument signed on behalf of such party. 
The failure of any party to this Agreement to assert any of its rights under
this Agreement or otherwise shall not constitute a waiver of those rights.

8.5 AMENDMENT.

    To the extent permitted by applicable law, this Agreement may be amended by
action taken by or on behalf of the Boards of Directors of the Company, Investor
and Newco at any time before or after obtaining Company Stockholder Approval. 
After obtaining Company Stockholder Approval, no amendment shall be made which
decreases the Merger Consideration or which materially and adversely 

                                         -49-
<PAGE>

affects the rights of the Company's stockholders hereunder without the approval
of the stockholders of the Company.  This Agreement may not be amended except by
an instrument in writing signed on behalf of all of the parties.


    
                                      ARTICLE IX

                                    MISCELLANEOUS


9.1 NONSURVIVAL OF REPRESENTATIONS, WARRANTIES AND AGREEMENTS.

    None of the representations, warranties or covenants (subject to the
succeeding sentence) in this Agreement or in any instrument delivered pursuant
to this Agreement shall survive the Effective Time.  This Section 9.1 shall not
limit any covenant or agreement of the parties which by its terms contemplates
performance after the Effective Time of the Merger.

9.2 NOTICES.

    All notices and other communications hereunder shall be in writing and
shall be deemed given if delivered personally, telecopied (which is confirmed),
sent by overnight courier (providing proof of delivery) or mailed by registered
or certified mail (return receipt requested) to the parties at the following
addresses (or at such other address for a party as shall be specified by like
notice):

    if to Investor or Newco, to

         Newport Investment LLC
         c/o Apollo Management, L.P.
         1301 Avenue of the Americas, 38th Floor
         New York, New York 10019
         Attention:  Josh Harris
         Telecopy No.: (212) 261-4102

    with a copy to:

         O'Sullivan Graev & Karabell, LLP
         30 Rockefeller Plaza, 41st Floor
         New York, NY 10112
         Attention: John J. Suydam, Esq.
         Telecopy No.: (212) 408-2420

    and

                                         -50-
<PAGE>

    if to the Company, to

         Alliance Imaging, Inc.
         1065 PacifiCenter Drive
         Suite 200
         Anaheim, CA 92806
         Attention:  Richard N. Zehner
         Telecopy No.: (714) 688-3377

    with a copy to:

         Irell & Manella LLP
         333 South Hope Street
         Suite 3300
         Attention: Anthony T. Iler, Esq.
         Telecopy No.: (213) 229-0515


9.3 INTERPRETATION.

    When a reference is made in this Agreement to an Article or a Section, such
reference shall be to an Article or a Section of this Agreement unless otherwise
indicated.  The table of contents and headings contained in this Agreement are
for reference purposes only and shall not affect in any way the meaning or
interpretation of this Agreement.  Unless the context otherwise requires, words
importing the singular shall include the plural, and vice versa.  Whenever the
words "INCLUDE", "INCLUDES" or "INCLUDING" are used in this Agreement, they
shall be deemed to be followed by the words "WITHOUT LIMITATION".  The phrase
"MADE AVAILABLE" in this Agreement shall mean that the information referred to
has been made available if requested by the party to whom such information is to
be made available.  As used in this Agreement, the term "SUBSIDIARY" of any
person means another person, an amount of the voting securities, other voting
ownership or voting partnership interests of which is sufficient to elect at
least a majority of its Board of Directors or other governing body (or, if there
are no such voting interests, 50% or more of the equity interests of which) is
owned directly or indirectly by such first person.  As used in this Agreement,
"MATERIAL ADVERSE EFFECT" means, when used in respect of the Company, any effect
or condition that, individually or in the aggregate with any other effect or
condition, is materially adverse to the assets, properties, business, financial
condition, results of operations or prospects of the Company and its
Subsidiaries, taken as a whole.  As used in this Agreement, "MATERIAL ADVERSE
CHANGE" means, when used in respect of the Company, any change or event that,
individually or in the aggregate with any other change or event, is materially
adverse to the assets, properties, business, financial condition, results of
operations or prospects of the Company and its Subsidiaries, taken as a whole. 
As used in this Agreement, except where expressly indicated otherwise, the
phrase "KNOWLEDGE" with respect to the Company, means to the actual knowledge of
the Company, its Subsidiaries, and each of their respective directors and
officers, after due inquiry (I.E., the amount of inquiry that 

                                         -51-
<PAGE>

would be undertaken by a reasonably prudent business person given like facts and
circumstances).  As used in this Agreement, the term "person" shall be
interpreted broadly and shall include any person, individual, corporation,
limited partnership, limited liability company, trust, association or other
entity or business organization of any kind or division thereof.  

9.4 ENTIRE AGREEMENT; THIRD PARTY BENEFICIARIES.

    This Agreement (a) constitutes the entire agreement and supersedes all
prior agreements and understandings, both written and oral, among the parties
with respect to the subject matter hereof, and (b) except as provided in
Section 6.5 is not intended to confer upon any person other than the parties
hereto any rights or remedies hereunder.

9.5 GOVERNING LAW.

    This Agreement shall be governed and construed in accordance with the laws
of the State of Delaware.

9.6 COUNTERPARTS.

    This Agreement may be executed in two or more counterparts, all of which
shall be considered one and the same agreement and shall become effective when
two or more counterparts have been signed by each of the parties and delivered
to the other parties, it being understood that all parties need not sign the
same counterpart.

9.7 ASSIGNMENT.

    Neither this Agreement nor any of the rights, interests or obligations
hereunder shall be assigned by any of the parties hereto (whether by operation
of law or otherwise) without the prior written consent of the other parties,
which consent will not be unreasonably withheld.  Subject to the preceding
sentence, this Agreement will be binding upon, inure to the benefit of and be
enforceable by the parties and their respective successors and assigns.

9.8 ENFORCEMENT.

    The parties agree that irreparable damage would occur in the event that any
of the provisions of this Agreement were not performed in accordance with their
specific terms or were otherwise breached.  It is accordingly agreed that the
parties shall be entitled to an injunction or injunctions to prevent breaches of
this Agreement and to enforce specifically the terms and provisions of this
Agreement in any court of the United States located in the State of Delaware or
in a Delaware state court, this being in addition to any other remedy to which
they are entitled at law or in equity.  In addition, each of the parties hereto
(i) consents to submit such party to the personal jurisdiction of any Federal
court located in the State of Delaware or any Delaware state court in the 

                                         -52-
<PAGE>

event any dispute arises out of this Agreement or any of the transactions
contemplated hereby, (ii) agrees that such party will not attempt to deny or
defeat such personal jurisdiction by motion or other request for leave from any
such court, (iii) agrees that such party will not bring any action relating to
this Agreement or any of the transactions contemplated hereby in any court other
than a Federal court sitting in the state of Delaware or a Delaware state court
and (iv) waives any right to trial by jury with respect to any claim or
proceeding related to or arising out of this Agreement or any of the
transactions contemplated hereby.



    [Remainder of this page intentionally left blank]

                                         -53-
<PAGE>

    IN WITNESS WHEREOF, Investor and the Company have caused this Agreement to
be signed by their respective officers thereunto duly authorized as of the date
first written above.

                        NEWPORT INVESTMENT LLC, a 
                        Delaware limited liability company



                        By:/S/ MICHAEL GROSS          
                           ---------------------------
                           Name: Michael Gross
                           Title: President



                        ALLIANCE IMAGING, INC., a
                        Delaware corporation



                        By:/S/ RICHARD N. ZEHNER     
                           --------------------------
                           Name: Richard N. Zehner
                           Title: Chairman, Chief Executive 
                                  Officer and President

                                         -54-
<PAGE>

                                       EXHIBITS

Exhibit A:    Form of Employment Agreements: Zehner and Pino
Exhibit B:    Financing Letters

                                      SCHEDULES

Disclosure Statement: Schedules to the following sections of the Agreement
(names of Schedules are for descriptive purposes only):

         3.3            Subsidiaries
         3.5            Consents and Approvals
         3.6(b)         Indebtedness
         3.6(c)         Fixed Assets; Commitments List
         3.6(d)         GMIC financial statements
         3.8            Absence of Certain Changes
         3.9            Litigation
         3.10           Contracts
         3.11           Permits
         3.12           Environmental
         3.13           Absence of Changes in Benefits Plans
         3.14(a)        Salary and Options
         3.14(b)        Outstanding options and warrants
         3.14(c)        Affiliate transactions
         3.15(a)        ERISA plans
         3.15(b)        401(a) plans
         3.15(d)        Welfare Benefits/Group health
         3.15(e)        Benefits in connection with Merger
         3.16           Taxes
         3.18           Liens on Assets
         3.19           Intellectual Property
         3.20           Non-competes
         3.23           Disclosure of Fees/Expenses letter
         3.28           Insurance
         5.1            Covenants/Anticipated Commitments List

Schedule 4.7:      Terms of Junior Notes
Schedule 7.3(f):   Required Consents
Schedule 7.3(h):   Certain Debt

                                         -55-
<PAGE>

                                 DISCLOSURE STATEMENT
                                 DATED JULY 23, 1997
                                           
                                           
    Reference is made to the Agreement and Plan of Merger, dated as of July 23,
1997, between Newport Investment LLC, a Delaware limited liability company and
Alliance Imaging, Inc., a Delaware corporation (the "AGREEMENT").  Capitalized
terms used in the schedules attached hereto and not otherwise defined shall have
the respective meanings ascribed to such terms in the Agreement.  The inclusion
of any matter on any schedule attached hereto shall not be deemed an admission
by the Company as to the materiality of such matter nor be deemed to expand the
scope of materiality for purpose of any of the schedules attached hereto or the
Agreement.

                                         A-1

   <PAGE>

   
   
                  AFFILIATE OF APOLLO MANAGEMENT, L.P.
               TO ACQUIRE STOCK OF ALLIANCE IMAGING, INC.
   
   
   ANAHEIM, CA (JULY 23, 1997) ALLIANCE IMAGING, INC. (NASDAQ:SCAN), a leading
   nationwide provider of outsourced radiology services and high technology
   diagnostic imaging systems, today announced that it has entered into a
   definitive agreement with Newport Investment LLC ("Newport"), an affiliate of
   Apollo Management, L.P. ("Apollo"), pursuant to which a subsidiary of Newport
   will merge with the Company.  In the merger, approximately 95% of the fully
   diluted common stock of Alliance (excluding options and warrants to be cashed
   for their spread value) will be retired for $11.00 per share in cash.  The
   Alliance transaction will be structured as a recapitalization whereby after
   the transaction Newport will own approximately 82.2% of the common stock of
   the new company and existing shareholders will own approximately 17.8%.
   
   On June 24, 1997, another affiliate of Apollo entered into an agreement to
   acquire SMT Health Services, Inc. (NASDAQ:SHED) ("SMT"), a company which
   operates 20 mobile MRI units in the eastern United States.  An affiliate of
   Apollo has commenced a tender offer for all shares of SMT pursuant to the SMT
   acquisition agreement.  Upon closing of the SMT and Alliance transactions,
   Apollo intends to combine SMT and Alliance.  Following the combination of
   Alliance and SMT, it is anticipated that existing shareholders of Alliance
   will own approximately 10% of the combined new company.
   
   The total Alliance transaction is valued at approximately $258 million,
   including outstanding stock options, fees and the refinancing of
   approximately $67 million of net debt.  The transaction will be subject to
   customary conditions, including a vote of Alliance shareholders and the
   obtaining of financing and necessary regulatory and third party consents.
   Newport has signed agreements with holders of a majority of the shares of
   Alliance to vote for the transaction.  Furthermore, these agreements grant
   Newport an option to acquire a majority of the outstanding shares at $11.00.
   
   Following the transaction, senior management of Alliance, including Richard
   Zehner, Chief Executive Officer, and Vincent Pino, Chief Operating Officer,
   will continue to manage the operations of Alliance in their current
   positions.
   
   Alliance Imaging is a leading provider of outsourced radiology services
   and high technology diagnostic imaging systems to hospitals and other health
   care providers nationwide and operates over 100 MRI and CT systems in 36
   states.
   
   
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