PRIMEDEX HEALTH SYSTEMS INC
10-K/A, 1997-08-15
MEDICAL LABORATORIES
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                                 UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                             Washington D.C. 20549
                                   ---------

                                  FORM 10-KA
                                Amendment No. 1

                 Annual Report Pursuant to Section 13 or 15(d)
            of the Securities Exchange Act of 1934 (Fee Required)

For the fiscal year ended October 31, 1996      Commission File Number 0-19019

                         PRIMEDEX HEALTH SYSTEMS, INC.
            (Exact name of registrant as specified in its charter)

               New York                                     13-33326724
            (State or other jurisdiction of              (I.R.S. Employer
            incorporation or organization)              Identification No.)

            1516 Cotner Avenue
            Los Angeles, California                            90025
            (Address of principal executive offices)        (Zip code)

Registrant's telephone number, including area code:     (310) 479-0390

Securities registered pursuant to Section 12(b) of the Act:   NONE

Securities registered pursuant to Section 12(g) of the Act:  Common Stock, 
$.01 par value

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 of 15(d) of the  Securities  and  Exchange Act of 1934
during the preceding 12 months (or for such shorter  period that the  registrant
was  required  to file such  reports),  and (2) has been  subject to such filing
requirements for the past 90 days.

                              Yes         No  X

Indicate by check mark if disclosure of delinquent files pursuant to Item 405 of
Regulation S-K is not contained herein,  and will not be contained,  to the best
of  registrant's  knowledge,  in  definitive  proxy  or  information  statements
incorporated by reference in Part III of this Form 10-K. ___________

The  aggregate   market  value  of  the   registrant's   common  stock  held  by
non-affiliates of the registrant was  approximately  $10,376,453 on June 6, 1997
based upon the mean between the closing bid and closing ask price for the common
stock in the over-the-counter market on said date.

The number of shares of the  registrant's  common stock  outstanding  on June 6,
1997 was 38,657,260 shares (excluding treasury shares).

                      Documents Incorporated by Reference

                                     NONE



<PAGE>



                                       PART IV

Item 14. Exhibits, Financial Statement Schedules and Reports on Form 8-K

    (a)Financial Statements - The following financial statements are 
filed herewith:

                                                                        Page No.

 Independent Auditors Report........................................  F-1

 Consolidated Balance Sheets........................................  F-2...F-3

 Consolidated Statements of Operations..............................  F-4...F-5

 Consolidated Statements of Stockholders' Equity [Deficit]..........  F-6

 Consolidated Statements of Cash Flows..............................  F-7...F-9

 Notes to Consolidated Financial Statements.........................  F-10..F-27

     Schedules  - The  Following  financial  statement  schedules  are filed
herewith:

    Independent Auditor's Report on Supplemental Schedule..............  S-1

  Schedule II - Valuation and Qualifying Accounts....................  S-2...S-4

      All other  schedules  are omitted  because they are not  applicable or the
      required information is shown in the consolidated  financial statements or
      notes thereto.

      (b)Exhibits - The following exhibits are filed herewith or incorporated by
reference herein:

                                                                 Incorporated by
Exhibit No.   Description of Exhibit                               Reference to

3.1.1        Certificate of Incorporation as amended                       (A)

3.1.2        November 17, 1992 amendment to the Certificate of Incorporation(A)

3.2          By-laws

4.1          Form of Common Stock Certificate                             (AA)

4.2          Form of Indenture between Registrant and American Stock Transfer
             and Trust Company as Incorporated by Indenture Trustee with respect
             to the 10% Series A Convertible Subordinated Debentures due 2003(B)

4.3          Form of 10% Series A Convertible Subordinated Debenture Due 2003
             [Included in Exhibit 4.2]                                       (B)

10.1         Agreement and Plan of Reorganization, dated as of April 30, 1992
             by and among PHS, CCC Franchising Acquisition Corp. II 
             ["New RadNet"],RadNet Management, Inc., Beverly Hills MRI, 
             Dr. Berger and Dr. Krane(C)

10.2         Partnership Purchase Agreement, dated as of April 30, 1992 by and
             among PHS, New RadNet and Dr. Berger and Dr. Krane            (C)


                                         2

<PAGE>




10.3         Promissory Note dated June 12, 1992 ["Purchaser Note"] issued by
             New RadNet in the principal amount of $10,000,000 payable to
             Dr. Berger ["Purchaser Note"].  
             [An identical note payable to Dr. Krane  was issued to him.]  (c)  
                              
10.4         PHS Guarantee, dated as of June 12, 1992, of payment of the
             Purchaser Notes                                               (C)

10.5         Stock Pledge Agreement, dated as of June 12, 1992 pursuant to which
             PHS as pledgor pledged the outstanding  capital stock of New RadNet
             to Drs. Berger and Krane to secure its guarantee               (C)

10.6         Secured Promissory Note, dated June 12, 1992 ["Sellers' Note"] 
             issued  by Drs. Berger and Krane, jointly in the principal 
             amount of $6,000,000 payable to New RadNet                     (C)

10.7         Stock Pledge  Agreement dated as of June 12, 1992 pursuant to which
             Drs. Berger and Krane as pledgors  pledged the 5,000,000  shares of
             PHS  Common  Stock  issued  to them in the  acquisition,  to PHS to
             secure repayment of the Sellers' Note (C)

10.8         Employment Agreement dated as of June 12, 1992 between New
             RadNet and Howard G. Berger.  [Dr. Krane executed a substantially
             identical employment agreement with New RadNet on said date.] (C)

10.10        Employment Agreement dated as of May 2, 1995 between PHS and Herman
             Rosenman [to serve as chief executive officer of New RadNet](D)

10.11        Asset Purchase Agreement dated as of October 1, 1994 between the
             Tower Group and RadNet Sub                                    (D)

10.12        Management Agreement dated as of October 1, 1994 between the Tower
             Group and RadNet Sub                                          (D)

10.15        Stock Purchase Agreement dated as of November 9, 1993 for the
             acquisition of Advantage Health Systems, Inc. ["AHS"] between PHS,
             John T. Lincoln and Paul G. Shoffeitt                         (D)

10.16        Employment Services Agreement dated November 9, 1993 between
             AHS and Paul G. Shoffeitt [John T. Lincoln executed a similar
             employment services agreement with AHS on the same date]        (D)

10.17        Deposit  Agreement for stock  dividend of CareAd common stock dated
             October 31, 1994 and Midlantic bank, N.A., PHS and CareAd       (D)

10.18        Separation Agreement dated January 31, 1995 between PHS and 
             CareAd                                                          (D)

10.19        Separation Agreement dated April 20, 1995 between PHS and CareAd(E)

10.20        Stock Purchase Agreement made as of June 2, 1995 among PHS,
             CareAd, Howard G. Berger and Robert E. Brennan                (E)

10.21        Medical Receivable  Purchase and Sale Agreement made as of July 31,
             1995 between Bristol A/R and Primedex Corporation  [relating to the
             sale of the Primedex Corporation portfolio of workers' compensation
             receivables]                                                   (F)




                                         3

<PAGE>



10.22        Employment Agreement dated as of September 14, 1995 between
             PHS and Steven R. Hirschtick                                   *

10.23        First  Amendment  dated  September  14, 1995 between PHS and Herman
             Rosenman [consented to by RadNet], to Employment Agreement dated as
             of May 2, 1994 between PHS and Herman Rosenman *

10.24        Incentive Stock Option Agreement dated as of July 21, 1995
             between PHS and Steven R. Hirschtick                           *

10.25        Stock Purchase Agreement dated as of November 14, 1995 among
             PHS, RadNet Managed Imaging Services, Inc. ["RMIS"], Future
             Diagnostics, Inc. ["FDI"] and the shareholders of FDI relating
             to the purchase by RMIS of all of the outstanding stock of FDI   *

10.26        Securities Purchase Agreement dated March 22, 1996, between the
             Company and Diagnostic Imaging Services, Inc.                  *

10.27        Stockholders Agreement by and among the Company, Diagnostic
             Imaging Services, Inc. and Norman Hames                        *

10.28        Securities Purchase Agreement dated June 18, 1996 between the
             Company and Norman Hames                                       *
- ------------------
   (A)  Incorporated  by  reference  to  exhibit  filed  with PHS'  Registration
Statement on Form S-1 [File No. 33-51870].
   (AA)  Incorporated  by  reference  to exhibit  filed  with PHS'  Registration
Statement on Form S-3 [File 33- 73150].
   (B)  Incorporated  by  reference  to  exhibit  filed  with PHS'  Registration
Statement on Form S-3 [File No. 33-59888].
   (C)  Incorporated  by reference to exhibit  filed in an amendment to Form 8-K
   report for June 12, 1992. (D) Incorporated by reference to exhibit filed with
   PHS' annual report on Form 10-K for the year ended
October 31, 1994.
   (E)  Incorporated by reference to exhibit filed with PHS' Form 8-K report for
   June 5, 1995. (F)  Incorporated  by reference to exhibit filed with PHS' Form
   8-K report for August 4, 1995.
   (*)  Filed herewith.









                              EMPLOYMENT AGREEMENT

                                    EX- 10.22

     This EMPLOYMENT  AGREEMENT (the "Agreement") is made and entered into as of
this 14th day of September,  1995, by and between PRIMEDEX HEALTH SYSTEMS, INC.,
a New York corporation qualified to do business in California ("Employer"), with
its principal place of business at 1516 Cotner Avenue,  Los Angeles,  California
90025 and STEVEN R.  HIRSCHTICK,  an  individual  ("Employee")  residing at 6301
Vista del Mar, Playa del Rey, California 90293.

     NOW,  THEREFORE,  in consideration of the mutual covenants herein contained
and intending to be legally bound hereby, the parties hereto agree as follows:

     1. Employment. Employer hereby agrees to employ Employee as General Counsel
and Senior Vice President of Employer. In that capacity,  Employee shall perform
such duties as are  typical or  appropriate  in his  capacities  of  employment,
subject  to and  under  the  direction  of  Employer's  Board of  Directors.  In
addition,  Employee shall perform such other duties for Employer as Employer may
reasonably  request,  or as may be  necessary  or  desirable  in  performing  or
carrying  out the  intention  of this  Agreement.  Employee  shall  provide such
services  for, and consult  with and advise,  without  additional  compensation,
corporations   affiliated  with  Employer  as  Employer  may  from  time-to-time
reasonably  specify.  Notwithstanding  the  foregoing,  Employer may not require
Employee to relocate  outside of Los Angeles  County  without  Employee's  prior
written consent, given in his sole discretion.

     2. Employment Term. The term of this Agreement shall begin November 1, 1995
and end October 31, 2000 unless earlier terminated in accordance with Section 10
hereof (the "Employment Term").

     3. Extent of Service.  Employee  shall use his best  efforts to fulfill his
duties in the course of his  employment  and to further the business of Employer
while devoting his full professional  time,  attention and energy during regular
business  hours to the business and affairs,  and to prompting the interests and
welfare,  of Employer and its affiliates  (any person or entity now or hereafter
controlling,  controlled  by, or under common control with Employer being herein
referred to as an  "affiliate").  Employee shall be subject to the direction aid
control of the Board of Directors of Employer.  Employee  shall not work for any
other business or enterprise during the Employment Term if such other work would
materially impair Employee's duties hereunder.

     4.  Compensation.

         a. Base  Salary.  For the  services  rendered  by  Employee  hereunder,
Employer  shall pay  Employee a base  salary at the annual  rate of Two  Hundred
Seventy-Five  Thousand Dollars  ($275,000) less  withholding  required by law or
agreed to by  Employer  and  Employee.  Such rate  shall be  reviewed  annually.
Employee understands and agrees that Employer is under no obligation to increase
Employee's  annual base salary as a result of such review.  Such salary shall be
payable in  installments  at such times as Employer  customarily  pays its other
employees  holding  comparable  positions  (but in any event not less often than
monthly).  The annual amount  payable to Employee  pursuant to the provisions of
this Section 4(a) shall sometimes hereinafter be referred to as "Base Salary."

         b. Bonus.  Employee  shall  participate in any bonus plan or bonus pool
applicable to senior management of Employer and/or Employer's affiliates, and/or
may receive an individual  bonus outside of any such plan in the sole discretion
of Employer's Chief Executive Officer,  as authorized by the Employer's Board of
Directors.




<PAGE>






         c. Fringe  Benefits.  In addition to the other  benefits  provided  for
hereunder,  Employee shall be entitled to the following benefits,  such benefits
to be provided by Employer:

              i. Four (4) weeks of paid  vacation  each year  (prorated  for any
portion thereof).

              ii.  Sick  time,   employee   benefit   plan   participation   and
hospitalization,  medical and dental insurance  coverage under such health plans
as may be  maintained  by Employer  from time to time, if any, all in accordance
with  Employer's  standard  policies  and  practice;   provided,  however,  that
hospitalization,  medical and dental coverage shall be funded by Employer on the
same basis as Employer funds health insurance coverage of other senior executive
employees of the Company; and

              iii.Such  other  usual and  customary  fringe  benefits  as may be
allowed to similarly situated senior executive employees of Employer,  including
but not limited to life insurance and use of a company car.

         d. Stock Options.  Employee has been granted  options to purchase up to
400,000  shares of Common Stock,  $.01 par value per share,  of Employer,  which
options  shall be granted to  Employee in  accordance  with the terms of a Stock
Option  Agreement  executed  concurrently  herewith and which  options  shall be
exercisable in accordance with the terms and conditions of that agreement.

         e. Prior Stock Options. Under two Stock Option Agreements both dated as
of October  15,  1993,  Employee  had  options  to  purchase  800,000  shares of
Employer's  common stock.  Said two Stock Option  Agreements dated as of October
15, 1993 are hereby terminated.

         f.   Effect of Termination.

              i. Upon  Employee's  voluntary  termination or  termination  under
Section 10 (except  pursuant to Section 10(d)) hereof,  Employee's  rights under
Section 4(a) shall  immediately  cease. This provision shall not apply to salary
or payments or benefits accrued prior to such termination.

              ii. Upon  Employee's  voluntary  termination or termination  under
Section 10 (except pursuant,  to Section 10(d)) hereof,  Employee's right to any
and all fringe benefits  described in Section 4(c) shall immediately cease. This
provision   shall  not  apply  to  any   accrued   and  vested   vacation   pay.
Notwithstanding  the  foregoing,  Employer  will fulfill all of its  obligations
under law with respect to the continuation of health benefits.

     5. Business Expenses. Employer will reimburse Employee for all ordinary and
reasonable  out-of-pocket business expenses incurred by Employee in continuation
with his  performance of services  hereunder the  Employment  Term in accordance
with Employer's expenses approval procedures then in effect.

     6.   Inventions,   Designs  and  Product   Developments.   All  inventions,
innovations,   designs,   processes,   programs,   techniques,   assemblies   of
information,  ideas and product developments developed or conceived by employee,
solely or jointly with others,  whether or not patentable or  copyrightable,  at
any time  during the  Employment  Term and that  relate to the actual or planned
business  activities  of  Employer  or its  affiliates  or to  similar  business
activities (collectively, the "Developments") and all of Employee's right, title
and interest  therein,  shall be the  exclusive  property of Employer.  Employee
hereby  assigns,  transfers and conveys to Employer all of his right,  title and
interest in and to any and all such Developments. Employee shall disclose fully,
as  soon as  practicable  and in  writing,  all  Developments  to the  Board  of
Directors  of  Employer.  Employee  agrees  to  preserve  as  confidential  full
particulars  of any  matters  referred  to herein,  and to maintain at all times
adequate  current written records of all such matters which records shall be and
shall remain the property of Employer.  At any time and from time to time,  upon
the request of Employer,  Employee shall execute and deliver to Employer any and
all instruments,

                                        2

<PAGE>






documents  and papers,  give evidence and do any and all other acts that, in the
opinion of  counsel  for  Employer,  are or may be  necessary  or  desirable  to
document such transfer or to enable Employer to file and prosecute  applications
for  and to  acquire,  maintain  and  enforce  any and  all  patents,  trademark
registrations  or  copyrights  under United Sates or foreign law with respect to
any Developments or to obtain any extension,  validations,  reissue, continuance
or  renewal  of any  such  patent,  trademark  or  copyright.  Employer  will be
responsible  for the preparation of any such  instruments,  documents and papers
and for the prosecution of any such proceedings and will reimburse  Employee for
all  reasonable  expenses  incurred by him in compliance  with the provisions of
this Section 6. By his signature hereon,  Employee acknowledges that he has been
notified  and  understands  that this  provision,  shall not apply to any of the
foregoing for which no equipment, supplies, facility or trade secret information
of Employer was used and which was developed  entirely on  Employee's  own time,
and (a) which does not  relate to the  business  of  Employer  or to  Employer's
actual or demonstrably  anticipated  research or development,  or (b) which does
not result from any work performed by Employee or Employer.

     7. Confidential  Information.  Employee acknowledges that, by reason of his
employment  by and  service to  Employer,  he will have  access to  confidential
information  of Employer  (and it  affiliates)  including,  without  limitation,
information   and  knowledge   pertaining   to  products,   present  and  future
developments,   techniques,   programs,   trade  secrets,   services   marketing
strategies,  processes,  patents, copyrights,  trademarks,  policies, contracts,
personnel  information,  improvements,  methods of operation,  sales and profits
figures,  customer and client lists,  relationships  between  Employer and those
persons,  entities and affiliates  with which Employer has contracted and others
who  have  business  dealings  with  it  and  other  confidential  property  and
information  of Employer  and its  customers  (collectively,  the  "Confidential
Information").  Employee  acknowledges  that the  Confidential  Information is a
valuable and unique asset of Employer and covenants  that, both during and after
the Employment  Term, he will not disclose any  Confidential  Information to any
person, firm or corporation (except as his duties as an employee of Employer may
require)  without the prior written  authorization  of the Board of Directors of
Employer and that all such matters and properties  shall be and shall remain the
property of Employer  and/or its customers.  The  obligation of  confidentiality
imposed by his  Section 7 shall not apply to  information  that  appears  and in
issued patents that is required by  governmental  authorities to be disclosed or
that  otherwise  becomes  generally  known  in the  industry  through  no act of
Employee in breach of this Agreement.

     8.  Noncompetition.

         a. Covenant of Employee.  Employee acknowledges that he has specialized
knowledge  and  experience  in  Employer's  business,  that his  reputation  and
contracts within the industry are considered of great value to Employer and that
if his  knowledge,  experience,  reputation  or  contacts  are  used to  compete
accordingly  agrees that for a period of one (1) year following the  termination
of Employee's employment hereunder,  Employee shall not (except as his duties as
an employee of Employer may require),  without the prior written  consent of the
Board of Directors of Employer, directly or indirectly:

              i. Contract or solicit for the purpose of engaging in the business
of the same general character as then engaged in by Employer,  or divulge to any
person,  firm or corporation the name,  address or  requirements  of, or perform
services of the same general  character as those  performed by Employer for, any
person,  firm,  corporation or other entity who is or at any time during the two
(2) years preceding the date of this Agreement had been, a customer of Employer;

              ii.  Solicit  for  employment  any of  the  employees,  agents  or
representatives of Employer;


                                        3

<PAGE>






              iii.Own, manage, operate, finance, join, control or participate in
the ownership,  management,  operation, financing or control of, or be connected
as an officer, director,  employee, partner,  principal, agent,  representative,
consultant or otherwise with any business or  enterprise,  whether in corporate,
proprietorship or partnership form or otherwise,  engaged in the business of the
same  character  as that then  engaged  in by the  Employer  in those  cities or
counties of the State of California (the "Prohibited Territory"),  including the
carrying  on of a business  which may be located  elsewhere  but which  involves
sales or any activity within the Prohibited Territory; or

              iv. Use his name or permit his name to be used in connection  with
any business or  enterprises  engaged in the  business of the same  character as
that then engaged in the business of the same  character as that then engaged in
by Employer in the Prohibited Territory, including the carrying on of a business
which may be located  elsewhere but which involves sales or any activity  within
the stipulated city or county.

         b.  Exception.  The provisions of this Section 8 shall not be construed
to  prohibit  the  ownership  by  Employee  of not more  than 5% of any class of
securities of any corporation that has a class of securities registered pursuant
to the Securities and Exchange Act of 1934.

         c.  Practice  of  Law  Exception.   After  termination  of  employment,
notwithstanding  anything contained in this Agreement to the contrary,  Employee
shall be entitled to engage in the  unrestricted  private practice of law either
in association with a law firm or as a sole practitioner.

         d.  Reformation.  If the  provisions  of this  Section 8 should ever be
adjudicated  to exceed the time,  geographic,  service  or  product  limitations
permitted by applicable law in any  jurisdiction,  then such provision  shall be
deemed reformed in such jurisdiction to the maximum time, geographic, service or
product limitations permitted by applicable law.

         e. Notice to Others.  Employee  agrees that until the expiration of the
covenants  contained in this Section 8, he will  provide,  and that Employer may
similarly provide a copy of such covenants to any business or enterprise:

              i.  That he may  directly  or  indirectly  own,  manage,  operate,
finance, join, control or participate in the ownership,  management,  operation,
financing or control of; or

              ii.  With  which  he  may be  connected  as an  officer,  director
employee, partner, principal, agent, representative, consultant or otherwise, or
in connection with which he may use his name or permit his name to be used.

     9. Equitable Relief.  Employee acknowledges that the restrictions contained
in Sections 6, 7 and 8 are, in view of the nature of the  business of  Employer,
reasonable and necessary to protect the legitimate  interests of Employer,  that
Employer  would not have  entered  into this  agreement  in the  absence of such
restrictions,  and that any violation of any  provisions of those  Sections will
result in irreparable  injury to Employer.  Employee also  acknowledges that the
remedy at law for any violation of these  restrictions  will be  inadequate  and
that Employer  shall be entitled to temporary and permanent  injunctive  relief,
without the necessity of proving  actual  damages or the posting of a bond,  and
that  Employer  shall be further  entitled  to an  equitable  accounting  of all
earnings,  profit;  and other benefits  arising from any such  violation,  which
rights shall be cumulative of and in addition to any other rights or remedies to
which  Employer may be entitled.  In the event of any such  violation,  Employer
shall be entitled to commence an action for temporary  and-permanent  injunctive
relief and other  equitable  relief in any court of Competent  jurisdiction  and
Employee  further  irrevocably  submits to the  jurisdiction of any court in the
jurisdiction  of the United States  District  Court for the Central  District of
California  over any suit,  action or  proceeding  arising out of or relating to
this Agreement.  Employee hereby waives, to the fullest extent permitted by law,
any objection that he may now or hereafter have to such  jurisdiction  or to the
venue of any such  suit,  action or  proceeding  brought in such a court and any
claim that such suit,  action or proceeding has been brought in an  inconvenient
forum.  Effective service of process may be made upon Employee by mail under the
notice provisions contained in Section 13.

                                        4

<PAGE>






     10. Termination.

         a. Death.  If Employee dies during the Employment  Term, this Agreement
shall terminate and thereafter Employer shall have no liability or obligation to
Employee,  his heirs,  personal  representatives,  assigns  or any other  person
claiming  under or through him except for unpaid salary and benefits  accrued to
the date of his death.

         b.  Employer's  Cause.  Upon  the  occurrence  of any of the  following
events,  this Agreement may be terminated  for cause by Employer  giving written
notice of  termination  to Employee,  such  termination to be effective upon the
date specified in such notice:

              i.  Employee's  conviction  of, or plea of nolo  contendere or its
equivalent with respect to, a felony  involving fraud or dishonesty or any other
crime  for  which a term of  imprisonment  in  excess  of one (1) year  could be
imposed; or

              ii.  Employee's  material breach of any of the terms or conditions
of this  Agreement  which is not cured within  ninety (90) days after receipt of
written notice from Employer to Employee.

         c.  Voluntary  Termination  and  Severance  Pay.  Either  party to this
Agreement may terminate  this agreement at any time for any reason by giving the
other party at least thirty (30) days prior written notice of the effective date
of  termination.  In the event of such  termination  of this Agreement by either
Employer or Employee, Employer shall pay to Employee, in addition to any and all
other compensation due under this Agreement,  an additional Two Hundred Thousand
Dollars ($200,  000).  This amount shall be paid as a lump sum no later than the
effective date of any such termination.

         d.  Employee's  Cause.  This Agreement may be terminated for "cause" by
Employee upon giving written notice of termination to Employer, such termination
to be effective upon the date specified in such notice. For the purposes of this
Section 10(d), "cause" shall mean Employer's material breach of any of the terms
or  conditions  of this  Agreement  and the failure to cure such  breach  within
thirty (30) days after written  notice from Employee to Employer.  The severance
pay of Two Hundred  Thousand  Dollars  ($200,000)  (as set forth in 10(c) above)
plus an  additional  six (6) months Base Salary  shall be paid to Employee on or
before the effective date of termination under this subparagraph 10(d).

         e.  Attorney-Client  Privileges.  Employer recognizes that Employee has
for some time prior to this  Agreement  been  actively  engaged  in the  private
practice of law for numerous  clients in the same  industry and many of the same
markets as  Employer.  Employer  also  recognizes  and accepts  that there is an
attorney-client  privilege of the utmost  confidentiality  that is required with
respect to any confidential information that Employee had Previously received in
his capacity as an  attorney.  Nothing in this  Agreement  shall be construed to
require Employee to divulge any such information or utilize any such information
for the benefit of Employer.  Employee's  refusal to divulge  and/or utilize any
such information shall not constitute any breach of this Agreement.

     11. Survival. Notwithstanding the termination of this Agreement pursuant to
Section 10 or the expiration of the Employment Term, the obligations of Employee
under  Sections 6, 7 and 8 shall survive and remain in full force and effect and
Employer shall be entitled to equitable relief against Employee  pursuant to the
provisions of Section 9.

     12.  Indemnification.  Employer shall indemnify and hold Employee  harmless
from any and all expenses,  including judgments, awards, and/or legal fees (with
an attorney of  employee's  choice)  relating to any  litigation  or other legal
proceedings  in which  Employee is named as a party,  provided  that Employee is
named as a party in such  litigation or other legal  proceeding  because of some
alleged  act or  activity  alleged to have been  conducted  by  Employee  in any
capacity in which he is connected with Employer.


                                        5

<PAGE>






     13.  Notice.  All notices and other  communications  required or  permitted
hereunder or necessary or convenient in connection  herewith shall be in writing
and  shall be  deemed  to have  been  given  when  delivered  by  hand,  sent by
recognized  overnight  delivery  services such as Federal Express,  or mailed by
registered or certified mail, return receipt  requested,  and shall be deemed to
be  effective  on the date  delivered  by  hand,  sent by  recognized  overnight
delivery service such as Federal Express,  or mailed,  as follows (provided that
notice of change of address  shall be deemed  given only when  received):  If to
Employer, at Employer's address provided on the first page of this Agreement. If
to Employee, at Employee's address provided on the first page of this Agreement;
and to such other names or addresses  as Employer or  Employee,  as the case may
be, shall designate by notice to the other party in the manner specified in this
Section.

     14.  Governing Law. This Agreement shall be governed by and interpreted and
enforced in  accordance  with the  substantive  laws of the State of  California
without  reference to the principles  governing the conflicts of laws applicable
in that or any other jurisdiction.

     15. Contents of Agreement:  Amendment and  Assignment.  This Agreement sets
forth the entire  understanding  between the parties  hereto with respect to the
subject matter hereof and cannot be changed,  modified or terminated except upon
written amendment or supplement duly executed by the parties hereto.  All of the
terms and  provisions of this  Agreement  shall be binding upon and inure to the
benefit of and be enforceable by the respective heirs, personal representatives,
successors  and  assigns of the parties  hereto,  except that (a) the duties and
responsibilities of Employee hereunder are of a personal nature and shall not be
assignable  in whole or in part by Employee and (b) the rights and  interests of
Employee hereunder shall not be assignable in whole or in part by Employee.

     16. Severability. If any provision of this Agreement or application thereof
to  anyone  or  under  any   circumstances  is  adjudicated  to  be  invalid  or
unenforceable in any jurisdiction, such invalidity or unenforceability shall not
affect any other  provisions or applications of this Agreement that can be given
effect without the invalid or unenforceable  provisions or application and shall
not invalidate or render  unenforceable such provision in any other jurisdiction
or under any other circumstance.

     17. Remedies  Cumulative;  No Waiver.  No remedy conferred upon Employer by
this  Agreement is intended to be exclusive  of any other  remedy,  and each and
every such  remedy  shall be  cumulative  and shall be in  addition to any other
remedy  given  hereunder or now or  hereafter  existing at law or in equity.  No
delay or omission by Employer in exercising any right, remedy or power hereunder
or existing at law or in equity shall be construed as a waiver thereof,  and any
such right,  remedy or power may be exercised by Employer  from time to time and
as often  as may be  deemed  expedient  or  necessary  by  Employer  in its sole
discretion.

     18.  Arbitration.  Except as provided  in Section 9 hereof,  any dispute or
controversy  arising  from or  relating  to this  Agreement  shall be decided by
arbitration  in the County of Los Angeles,  State of  California,  in accordance
with  the  commercial   rules  and  regulations  of  the  American   Arbitration
Association  and in accordance  with the discovery  procedures  set forth in the
California  Discovery  Act.  Such  decision  shall be final and binding upon the
parties. At the request of either Employer or Employee,  arbitration proceedings
shall be  conducted in the utmost  secrecy,  and, in such case,  all  documents,
testimony and records shall be received,  heard and maintained by the arbitrator
in secrecy,  available  for  inspection  only by Employer or Employee  and their
respective  attorneys and experts who shall agree, in advance and in writing, to
receive all such information  confidentially and to maintain the secrecy of such
information shall become generally known.

     19.  Attorneys' Fees. The prevailing party shall be entitled to recover its
reasonable  attorneys' fees and, costs incurred in connection with any action or
proceeding under this Agreement.


                                        6

<PAGE>






     IN WITNESS WHEREOF,  the undersigned have each duly executed this Agreement
as of the date first above written.

                                       EMPLOYER:

                                       PRIMEDEX HEALTH SYSTEMS, INC.



                                       By: /s/ Herm Rosenman
                                            Herm Rosenman
                              Its President and CEO


                                       EMPLOYEE:

                                       STEVEN R. HIRSCHTICK



                                       /s/ Steven R. Hirschtick







                     FIRST AMENDMENT TO EMPLOYMENT AGREEMENT
                                    EX- 10.23

     THIS AMENDMENT is made on this 14th day of September,  1995, by and between
PRIMEDEX HEALTH SYSTEMS,  INC., a New York corporation  qualified to do business
in California ("Corporation"),  and HERM ROSENMAN ("Employee"), and is consented
to by RADNET MANAGEMENT, INC. ("RADNET").

                                 R E C I T A L S

     WHEREAS, Corporation and Employee entered into an Employment Agreement
("AGREEMENT") as of May 2, 1994;

     WHEREAS,  RADNET and Employee  entered into an  Assumption  Agreement as of
September 13, 1994, under which RADNET agreed to jointly assume with Corporation
all of Corporation's obligations to Employee under the AGREEMENT; and

     All  parties  now wish to amend the  AGREEMENT  in certain  respects as set
forth herein.

     NOW,  THEREFORE,  in consideration of the mutual covenants and undertakings
herein contained, the parties agree as follows.

     1. Section 2 of the AGREEMENT is hereby deleted, and the following shall be
inserted in its stead:

         "The Term of Employee's  employment  under this  Agreement (the "Term")
         shall commence on May 2, 1994 and shall  terminate on October 31, 2000,
         unless sooner terminated pursuant to Section 8 of this Agreement."

     2.  Section 3 of the  AGREEMENT  is hereby  deleted,  and the  following is
inserted in its stead:

         "During the Term, as full  compensation for all services to be rendered
         pursuant to this Agreement,  the  Corporation  agrees to pay Employee a
         salary at the annual rate of Two Hundred Seventy-Five  Thousand Dollars
         ($275,000) payable in equal monthly or more frequent installments, less
         such  deductions  or amounts to be  withheld  as shall be  required  by
         applicable laws and regulations.  Such  compensation  shall be reviewed
         annually.  Employee  understands and agrees that neither RadNet nor the
         corporation is under any obligation to increase Employee's compensation
         as a result of such review nor may Employee's  compensation be reduced.
         An  annual  bonus  may be  paid by the  Corporation  or  RadNet  to the
         Employee based upon the performance of the Corporation and/or RadNet as
         the  Board  of  Directors  shall  from  time-to-time  determine,  or in
         accordance with a Senior  Management Bonus Plan or Pool approved by the
         Board of Directors."

     3. Section 8.4 of the  AGREEMENT is hereby  deleted,  and the  following is
inserted in its stead:

         "8.4 Termination for Cause. Upon the occurrence of any of the following
         event, this Agreement may be terminated for cause by Corporation giving
         written  notice of  termination  to Employee,  such  termination  to be
         effective upon the date specified in such notice:

              i.  Employee's  conviction  of, or plea of nolo  contendere or its
         equivalent  with respect to, a felony  involving fraud or dishonesty or
         any other crime for which a term of  imprisonment  in excess of one (1)
         year could be imposed; or

              ii.  Employee's  material breach of any of the terms or conditions
         of this  agreement  which is not cured  within  ninety  (90) days after
         receipt of written notice from Corporation to Employee."



<PAGE>






     4.  Section 4 of the  AGREEMENT  is hereby  amended by deleting  the second
sentence thereof.

     5. The parties to this Amendment hereby confirm each and every other (e.g.,
those not amended by this Amendment) term and condition of the AGREEMENT.

     6. RadNet hereby confirms the Assumption Agreement.

     7. The  amendments  set forth herein shall be effective upon this Amendment
being signed by all parties hereto.

Attest:                                PRIMEDEX HEALTH SYSTEMS, INC.
                                       ("Corporation")


/s/ Howard G. Berger, M.D.             By:  /s/ Herm Rosenman
Howard G. Berger, M.D.,                     Herm Rosenman,
Its Secretary                               Its President and CEO


                                       Dated:  9/29/95

RADNET MANAGEMENT, INC.                HERM ROSENMAN
                                       ("Employee")



By:  /s/ Steven R. Hirschtick
     Steven R. Hirschtick,             /s/ Herm Rosenman
     Its Senior Vice President
                                       Dated:    9/29/95

Dated:   9/29/95








                            

     INCENTIVE  STOCK OPTION  AGREEMENT,  made as of the 21st day of July,  1995
between Primedex Health Systems,  Inc. (the "Company") and Steven R. Hirschtick,
an employee of the Company (the "Optionee").

     NOW, THEREFORE, the Company and the Optionee by his acceptance of the grant
of this Incentive Stock option ("ISO") agree as follows:

     1.  Grant of Option.

     The Company  hereby  grants to the  Optionee as a separate  inducement  and
agreement in  connection  with his  employment by the Company and not in lieu of
any salary or other  remuneration for services,  an ISO to purchase on the terms
and  conditions  hereinafter  set forth and  subject  to the  provisions  of the
Company's  Incentive  Stock  Option  Plan  (the  "Plan"),   the  provisions  and
definitions of which are hereby  incorporated  by reference  herein,  all or any
part of an  aggregate of 400,000  shares of Common Stock of the Company  (either
unissued or treasury), $.01 par value (the "Shares" or the "Common Stock").

     2.  Term of Option.

     The ISO granted hereunder shall,  notwithstanding  anything to the contrary
contained  herein  or in the  Plan,  expire  no later  than  July 21,  2000 (the
"Termination Date").

     3.  Termination of Employment.

     Upon  termination  of  employment  of the Optionee with the Company and all
subsidiary  corporations and parent corporations,  any ISO previously granted to
the Optionee  shall,  to the extent not  theretofore  exercised,  terminate  and
become null and void, except that:

     (a) if the Optionee shall die, or become totally and  permanently  disabled
(as  described in Section  105(d)(4) of the  Internal  Revenue Code of 1986,  as
amended from time to time-the "Code"), while in the employ of the Company or any
such corporation at a time when the Optionee was entitled to exercise the ISO as
herein provided,  in case of death the legal representative of the Optionee,  or
such person who acquired the ISO by bequest or inheritance or by reason of death
of the Optionee,  or in the case of total and permanent disability the Optionee,
may,  not later than one (1) year from the date of death or total and  permanent
disability,  exercise  the ISO in respect  of any or all of the total  number of
shares of Common  Stock as shall  have been  subject to the ISO and as shall not
have been previously purchased by the Optionee; and

     (b) if the  employment  of the  Optionee  to whom such ISO shall  have been
granted shall  terminate by reason of the Optionee's  retirement (at such age or
upon such  conditions  as shall be specified by the Committee or by the Board of
Directors) or dismissal by the Company other than for cause (as defined  below),
and while the Optionee is entitled to exercise the ISO as herein  provided,  the
Optionee  shall have the right to  exercise  the ISO granted  hereunder,  to the
extent of the  number of shares of Common  Stock  subject  to the ISO which were
purchasable by him at the date of termination of his employment,  at any time up
to and  including  three  (3)  months  after  the  date of such  termination  of
employment.

     If the Optionee voluntarily terminates his employment, or is discharged for
cause, the ISO granted  hereunder shall forthwith  terminate with respect to any
unexercised portion thereof.

     If the ISO granted hereunder shall be exercised by the legal representative
of a deceased  optionee or former Optionee,  or by a person who acquired the ISO
granted  hereunder  by bequest or  inheritance  or by reason of the death of the
Optionee,  written  notice of such exercise  shall be accompanied by a certified
copy of  letters  testamentary  or  equivalent  proof of the right of such legal
representative or other person to exercise the ISO.



<PAGE>






     For the purpose of this Agreement, "for cause" shall mean, as determined by
the Committee or the Board of Directors; (a) Optionee's conviction of, or a plea
of nolo contendere or its equivalent  with respect to, a felony  involving fraud
or dishonesty or any other crime for which a term of  imprisonment  in excess of
one (1) year could be imposed;  or (b) Optionee's  material breach of any of the
terms or conditions of an  Employment  Agreement in effect  between the Optionee
and the Company or a subsidiary corporation or parent corporation of the Company
which  material  breach is not cured  within  ninety (90) days after  receipt of
written notice from such employee corporation to the Optionee.

     For the purpose of this  Agreement,  an  employment  relationship  shall be
deemed to exist between an individual  and a corporation  if, at the time of the
determination, the individual was an "employee" of such corporation for purposes
of Section  422(a) of the Code.  If an individual is on a leave of absence taken
with the consent of the corporation by which such individual was employed, or is
on active military  service,  and is determined to be an "employee" for purposes
of the exercise of the ISO,  the Optionee  shall not be entitled to exercise the
ISO during  such  period  and while the  employment  relationship  is treated as
continuing  intact  unless the Optionee  shall have  obtained the prior  written
consent of such  corporation,  which  consent shall be signed by the Chairman of
the Board,  the  President,  a senior  vice-president  or other duly  authorized
officer of such corporation.

     A termination  of employment  shall not be deemed to occur by reason of (i)
the transfer of the Optionee  from  employment by the Company to employment by a
subsidiary  corporation  or a  parent  corporation  of the  Company  or (ii) the
transfer of the Optionee from employment by a subsidiary corporation or a parent
corporation of the Company to employment by the Company or by another subsidiary
corporation or parent corporation of the Company.

     4. Term of ISO; Limitations on the Right of Exercise.

     The  Optionee  may  exercise  the ISO in full for the  aggregate  number of
shares  of  Common  Stock  subject  to the ISO,  but  only  after he has been an
employee  of  the  Company  including  any  subsidiary  corporation  and  parent
corporation  of the Company  (during the time such  entity was a  subsidiary  or
parent of the  Company)  for a period  of at least  one (1) year  (the  "minimum
employment").

     The ISO granted hereunder shall be exercisable  during a period of five (5)
years from the date of grant of the ISO.

     To  the  extent  that  the  ISO is  not  exercised  within  the  period  of
exercisability specified above, it shall expire as to the then unexercised part.
If the ISO granted  hereunder shall terminate prior to the Termination Date, the
Committee or the Board of Directors shall have the right to use the Common Stock
as to which  such  ISO  shall  not  have  been  exercised  to grant  one or more
additional ISO's to any eligible employee under the Plan.

     In no event shall the ISO granted  hereunder be exercised for a fraction of
a share.

     5.  Nontransferability.

     The ISO granted hereunder shall not be transferable  otherwise than by will
or the laws of descent and distribution,  arid shall be exercisable,  during the
lifetime of the holder,  only by such holder,  or, if the holder is incompetent,
then  by a  committee  of  his  person  and  property  or  by  his  other  legal
representative who has been judicially appointed as such.

                                        2

<PAGE>






     6.  Purchase Price and Payment.

     (a) The price  for each  share of Common  Stock  purchasable  under the ISO
granted hereunder shall be $.125.

     The  Company  shall  cause stock  certificates  representing  tie shares of
Common Stock  purchased  under the ISO granted  hereby to be issued only when it
shall have  received the full  purchase  price for the Common Stock in cash,  by
certified check or bank draft.

     Upon the  exercise of the ISO  granted  hereunder  and upon  payment of the
purchase price therefor,  a certificate or certificates for the shares of Common
Stock as to which the ISO has been  exercised  shall be issued by the Company in
the name of the person  exercising the ISO and shall be delivered to or upon the
order of such person or persons.

     The Company may endorse  such legend or legends  upon the  certificates  of
shares of Common Stock issued upon  exercise of the ISO granted  hereunder,  and
the  Committee  or the  Board  of  Directors  may  issue  such  "stop  transfer"
instructions to its transfer agent in respect of such shares of Common Stock, as
the Committee or the Board of  Directors,  in its  discretion,  determines to be
necessary  or  appropriate  (i) to  prevent a  violation  of, or to  perfect  an
exemption from, the registration  requirements of the Securities Act, or (ii) to
implement the  provisions of any agreement  between the Company and the Optionee
with respect to such shares of Common Stock.

     The  Company  shall pay all issue or  transfer  taxes  with  respect to the
issuance  or  transfer  of the shares of Common  Stock,  as well as all fees and
expenses necessarily incurred by the Company in connection with such issuance or
transfer,  except fees and expenses which may be  necessitated  by the filing or
amending of a Registration  Statement  under the  Securities Act of 1933,  which
fees and expenses  shall be borne by the recipient of the shares of Common Stock
unless  such  Registration  Statement  has been filed by the Company for its own
corporate  purposes  (and the Company so states) in which event the recipient of
the  shares of Common  Stock  shall  bear  only  such fees and  expenses  as are
attributable  solely to the  inclusion  of such  shares  of Common  Stock in the
Registration Statement.

     Anything to the  contrary  herein  contained  notwithstanding,  the Company
agrees on an annual  basis  commencing  at such  time as its  audited  financial
statements  are  available  for the fiscal year ending  October 31, 1995, at its
sole expense, to file a Registration  Statement on Form S-8 under the Securities
Act of 1933  with  the  Securities  and  Exchange  Commission  and to  file  any
necessary  amendments  thereto  through  July  21,  2000 and  while  this ISO is
outstanding  in whole or in part or any of the shares of Common Stock  purchased
upon  exercise  thereof  are  beneficially  owned  by the  Optionee  and may not
otherwise be sold publicly  (including  sales  pursuant to Rule 144), and to use
its best efforts to obtain  effectiveness  thereof so as to permit  public offer
and sale of the shares of Common Stock underlying this ISO.

     All shares of Common  Stock  issued as provided  herein shall be fully paid
and non-assessable to the extent permitted by law.

     (b)  Anti-Dilution.  The  ISO  granted  pursuant  to this  agreement  shall
continue  notwithstanding  any change or exchange of the shares of Common  Stock
into or for a different number and/or kind of common shares of the Company or of
a corporation  or other entity which  succeeds to the business of the Company or
becomes its parent or subsidiary, whether or not such change or exchange results
from a  recapitalization,  stock  split,  split-up,  split-off,  combination  of
shares, exchange of shares,  issuance of rights to subscribe,  change in capital
structure, reorganization,  corporate merger, consolidation or separation, stock
dividends or liquidation,  provided however, that the ISO, if still outstanding,
shall  terminate  if and when the  business  conducted  by the  Company  (or any
successor  to the Company) is  substantially  terminated  or dissolved  upon its
liquidation. In the event of such a change or exchange, an

                                        3

<PAGE>






appropriate adjustment shall be made in the number and/or kind of shares subject
to option and/or in their  per-share  option  price,  and that in the event of a
transaction to which Section  424(a) of the Internal  Revenue Code (or successor
provision of law) is applicable,  the foregoing shall be accomplished thereunder
by  assumption  of the ISO or by the  substitution  of another  incentive  stock
option.  In no case shall the making of any change,  exchange,  substitution  or
assumption or related adjustment give the Optionee  additional benefits which he
did not have under the old option,  and the excess of the aggregate  fair market
value of the shares  subject to the Option  immediately  after any such  change,
exchange,  substitution  and/or adjustment shall not be greater than such excess
of the fair  market  value of the Common  Stock  subject to the ISO  immediately
before. Adjustment of the number of shares subject to the ISO shall not make the
ISO become  exercisable  as to a  fractional  share.  Subject  to the  foregoing
limitations,  the  terms  of any such  adjustment  shall  be  determined  by the
Committee or the Board of Directors  and such  determination  made in good faith
shall be  final,  provided  that if  pursuant  to said  Section  424(a)  another
corporation or other  successor  assumes the ISO or substitutes  another option,
its determination of the terms made in good faith shall be final.

     7.  Method of-Exercise.

     The ISO shall be  exercisable  only by  delivery  of written  notice to the
Secretary of the Company at the  Company's  offices in Los Angeles,  California,
prior to the  expiration  of the ISO as specified in  paragraphs 2 and 3 hereof.
Such notice  shall state the  election  to exercise  the ISO,  and the number of
Shares in  respect  of which it is being  exercised,  and shall be signed by the
person or persons so exercising such ISO. The date the Company  receives written
notice  shall be the  exercise  date.  In the event  the ISO shall be  exercised
pursuant to the  provisions  of paragraph 3 hereof by a person or persons  other
than the Optionee, such notice shall be accompanied by proof satisfactory to the
Company of the right of such person or persons to exercise  the ISO. The Company
shall  issue and  deliver,  upon  receipt of notice  and  payment in full of the
purchase  price  for the  Shares  as to  which  the ISO is  being  exercised,  a
certificate  or  certificates  representing  such  number of shares to which the
Optionee is entitled to receive under the Plan.

     8.  Miscellaneous.

     (a) The Optionee  shall not sell,  assign,  transfer,  pledge,  encumber or
otherwise  dispose of this ISO. This ISO shall only be transferable  pursuant to
the laws of descent and  distribution and therefore may only be exercised by the
Optionee, or in the event of his death, by his executor, administrator, personal
representative, heirs or legatees.

     (b) Any notice  given  pursuant to this  Agreement by the Company or by the
Optionee  shall be in  writing  and shall be  deemed to have been duly  given if
delivered by hand or by telecopy,  or mailed by  certified or  registered  mail,
return receipt requested:

     If to the Company

     Primedex Health Systems, Inc.
     1516 Cotner Avenue
     Los Angeles, California 90025
     Attention:  President

     If to the Optionee

     Steven R. Hirschtick
     6301 Vista del Mar
     Playa del Rey, California 90293

or to such other  address as either  party shall  designate  by written  notice,
similarly given, to the other party.


                                        4

<PAGE>






     (c)  Subject to the  restrictions  on  transfer  included  herein,  all the
covenants and  provisions of this Agreement by or for the benefit of the Company
or the  Optionee  shall  bind and  inure  to the  benefit  of  their  respective
successors and assigns hereunder.

     (d) The  Company  will not  merge  or  consolidate  with or into,  or sell,
transfer  or lease  all or  substantially  all of its  property  to,  any  other
corporation unless the successor,  transferee or lessee corporation, as the case
may be (if  not the  Company),  shall  expressly  assume  the  due and  punctual
performance  and  observance  of each and every  covenant and  condition of this
Agreement to be performed and observed by the Company.

     (e) All statements contained in any schedule, exhibit, certificate or other
instrument  delivered by or on behalf of the parties  hereto,  or in  connection
with the  transactions  contemplated  by this  Agreement,  shall be deemed to be
representations  and warranties  hereunder.  Notwithstanding  any investigations
made by or on behalf of the  parties  to this  Agreement,  all  representations,
warranties  and  agreements  made by the parties to this  Agreement  or pursuant
hereto shall  survive,  except that, if a party hereto has or, with the exercise
of due care would have, actual knowledge at the date hereof of facts which would
constitute a breach of the representations and warranties contained herein, such
breaches  shall be deemed  waived by such  party if such party  consummates  the
transactions contemplated by this Agreement.

     (f) This Agreement  shall be deemed to be a contract made under the laws of
the State of New York and for all purposes shall be construed in accordance with
the internal laws of said State.

     (g) Nothing  contained in this Agreement  shall be construed to give to any
person or  corporation  other than the  Company  and the  Optionee  any legal or
equitable right, remedy or claim under this Agreement,  and this Agreement shall
be for the sole and exclusive benefit of the Company and the Optionee.

     (h) Each of the  parties  acknowledges  and agrees that in the event of any
breach of this Agreement by it, the other party would be irreparably  harmed and
could not be made whole by monetary damages.  Each party  accordingly  agrees to
waive the defense in any action for  specific  performance  that a remedy at law
would be adequate and that the other  party,  in addition to any other remedy to
which it may be  entitled  at law or in  equity,  shall be  entitled  to  compel
specific  performance of this  Agreement in any action  instituted in the United
States District Court for the Central  District of California,  or, in the event
said Court  would not have  jurisdiction  for such  action,  in any court of the
United States or any state thereof having subject matter  jurisdiction  for such
action. Each party consents to personal  jurisdiction in any such action brought
in the United States  District  Court for the Central  District of California to
service of process upon it in the manner set forth in Section 8(b) hereof.


     IN WITNESS  WHEREOF,  the parties  have caused  this  Agreement  to be duly
executed, all as of the date and year first above written.

                                       PRIMEDEX HEALTH SYSTEMS, INC.


                                       By:  /s/ Howard Berger, M.D.
                              Howard Berger, M.D.,
                             Chief Financial Officer


                            /s/ Steven R. Hirschtick
                        Steven R. Hirschtick ("Optionee")










                          STOCK PURCHASE AGREEMENT


                            relating to the stock of


                            FUTURE DIAGNOSTICS, INC.



                                      Among



                     RADNET MANAGED IMAGING SERVICES, INC.,


                          PRIMEDEX HEALTH SYSTEMS, INC.



                                       and



                  The shareholders of Future Diagnostics, Inc.











                                November 14, 1995




<PAGE>



                                TABLE OF CONTENTS
                                                                          Page

1.   Purchase and Sale of Shares............................................1
2.   Purchase Price and Payment.............................................1
3.   The Closing, the Closing Date and the Effective Date...................4
4.   Representations and Warranties by Sellers..............................4
5.   Representations and Warranties by Buyer...............................17
6.   Pre-Closing Covenants.................................................19
7.   Conditions Precedent to Obligations of Buyer..........................22
8.   Conditions Precedent to Obligations of Sellers........................25
9.   Indemnification...................................................... 26
10.  Post-Closing Covenants................................................29
11.  Termination...........................................................33
12.  Confidentiality.......................................................33
13.  Publicity.............................................................33
14.  Notices...............................................................34
15.  Governing Law; Interpretation; Section Headings.......................35
16.  General...............................................................35
17.  Further Assurances....................................................36
18.  Counterparts..........................................................36
19.  Attorneys' Fees.......................................................36
20.  Interpretation of Agreement...........................................36

                                    EXHIBITS

Exhibit A-1 License Agreement (FDR to FDI) Exhibit A-2 License Agreement (FDI to
FDR)
Exhibit B      Matters to be Covered by Legal Opinion of Sellers' Counsel
Exhibit C      Newco Shareholders Agreement
Exhibit D      Employment Agreement
Exhibit E      California Counties and Other States Where the Corporation is
                Doing Business
Exhibit F      Guaranty and Security Agreement
Exhibit G      Assignment

                                    SCHEDULES

Schedule 1     Shareholders Interests in the Corporation
Schedule 2     Exceptions to Representations and Warranties
Schedule 3     Balance Sheet
Schedule 4     Material Contracts
Schedule 5     Bank Accounts
Schedule 6     Litigation and Proceedings
Schedule 7     Compensation and Benefits of Employees
Schedule 8     Required Consents and Notices
Schedule 9     Permits
Schedule 10    Insurance Policies
Schedule 11    Exceptions to Dr. Brant-Zawadzki's Noncompete Agreement
Schedule 12    Exceptions to Dr. Crues' Noncompete Agreement










                                      - i -




                            STOCK PURCHASE AGREEMENT

                                    EX- 10.25

     This  Stock  Purchase  Agreement  is  entered  into as of the  14th  day of
November, 1995, by and among Radnet Managed Imaging Services, Inc., a California
corporation  ("Buyer"),  Primedex Health Systems,  Inc., a New York  corporation
("Primedex"),   Future   Diagnostics,   Inc.,  a  California   corporation  (the
"Corporation"), and Michael Brant-Zawadzki, M.D., Jaana Cohan ("Cohan"), John V.
Crues, M.D., Arnold S. Tesh and William S. Wood  (individually,  a "Seller" or a
"Shareholder"  and,  collectively  the  "Sellers" or the  "Shareholders"),  with
reference to the following facts:

                                 R E C I T A L S

     A.  Each   Shareholder   owns  the   number  of  shares  of  common   stock
(collectively,  the  "Shares")  in the  Corporation  as set forth in  Schedule 1
attached hereto.

     B. Buyer has agreed to purchase,  and the Shareholders have agreed to sell,
all of Shares upon the terms and conditions set forth herein.

     THEREFORE, the parties hereto agree as follows:

                                    AGREEMENT

     1. Purchase and Sale of Shares. Subject to the terms and conditions of this
Agreement,  Buyer has agreed to purchase  and each  Shareholder  agrees to sell,
transfer and deliver the number of Shares set forth opposite such  Shareholder's
name on Schedule I attached  hereto at the Closing on the Closing Date (as those
terms are defined in Section 3 hereof).

     2.  Purchase Price and Payment.

         (a) Calculation of Purchase  Price.  Subject to the terms and condition
of this Agreement,  and in full  consideration for the assignment,  transfer and
delivery  to Buyer of the Shares,  Buyer shall (i) pay to Sellers,  at the times
specified  in  Section  2(b),  a cash  purchase  price per Share  determined  by
dividing  $2,405,000  (adjusted  as  indicated  below)  by the  total  number of
outstanding  Shares as indicated in Schedule 1 attached hereto and (ii) cause to
be issued to Sellers a number of shares of capital stock of RadNetWork,  Inc., a
California   corporation   recently  organized  by  Primedex  ("Newco"),   which
represents an aggregate 20% interest in the outstanding  capital stock of Newco,
which  shares of Newco shall be issued to each of Sellers on a pro rata basis in
the same manner as the cash portion of the aggregate purchase price is allocated
among the Sellers as set forth herein;  provided,  however, that if the proposed
acquisition of MedLink of Texas is not completed by June 30, 1996, Sellers shall
be issued or transferred additional shares in Newco so that Sellers shall own an
aggregate  of 40%  of the  outstanding  capital  stock  of  Newco.  The  parties
acknowledge and agree that, after the Closing,  Buyer will cause the Corporation
to transfer to Newco all of the business and assets of the  Corporation  that is
outside of the State of California.

         (b)  Payment  of  Purchase  Price.  Buyer  shall pay to  Sellers at the
Closing an  aggregate  amount of  $105,000  by Buyer's  checks or, if any Seller
provides the necessary  written  instructions at least three business days prior
to the Closing  Date,  by wire  transfer to such  Seller's  bank  account.  Such
payments  shall be paid on a pro  rata  basis to the  Sellers  according  to the
number  of  Shares  owned by each  Seller as  compared  to the  total  number of
outstanding  Shares.  The  balance  of the  purchase  price  shall  (subject  to
adjustment  as set forth in Section  2(c) below) be payable in  installments  as
follows:

              (i) One payment of $900,000, payable on January 2, 1996;



                                        1

<PAGE>






              (ii)Four  quarterly  payments of $50,000 each, payable on February
29, 1996, May 31, 1996, August 31, 1996 and November 30, 1996;

              (iiiEight  quarterly payments of $75,000 each, payable on February
28, May 31, August 31 and November 30, in 1997 and 1998;

              (iv)Four  quarterly payments of $100,000 each, payable on February
28, 1999, May 31, 1999, August 31, 1999 and November 30, 1999; and

              (v) one final  installment  of  $200,000,  payable on December 31,
1999.

         (c) Adjustment of Purchase  Price.  The parties hereto  acknowledge and
agree that the purchase price for the Shares is based upon the assumption  that,
as of the Closing Date, the accounts  receivable of the Corporation  will result
in collections of at least $904,270  during the eight month period  beginning on
the Effective Date and that the total  liabilities of the  Corporation as of the
Effective Date (including all Excluded  Liabilities,  as defined in Section 4(g)
below) to which the Corporation is subject as of the Effective Date or which are
based  upon the  business  or  activities  of the  Corporation  on or before the
Effective Date (and which are not otherwise  satisfied by the Shareholders) will
be not more than $2,172,095.  In the event that either (i) $904,270 is in excess
of the total collections on the Corporation's Effective Date accounts receivable
during the eight month period following the Effective Date or (ii) the amount of
the Corporation's Effective Date liabilities  attributable to business conducted
by the  Corporation  on or before  the  Closing  Date  (including  any  Excluded
Liabilities  that are not satisfied by the  Shareholders,  but not including any
operating  expenses  based upon the  contracts  listed in Schedule 4 that accrue
after the Closing Date,  e.g., lease payments under the Lease that are due after
the Closing Date) to which the  Corporation  is subject or otherwise is required
to pay is in  excess of  $2,172,095,  then in  either  event the  amount of such
excess shall reduce the purchase price. Any such reduction shall first be offset
against the next quarterly installment payments of the purchase price coming due
pursuant to Section 2(b) above and, thereafter,  shall be payable by the Sellers
to Buyer on a pro rata  basis  according  to the  number of Shares  held by each
Seller as compared to the total  number of Shares  acquired by Buyer;  provided,
however,  that the aggregate amount of all adjustments  pursuant to this Section
2(c) shall not exceed  $2,400,000.  During the eight month period referred to in
clause (i) above,  each Seller shall have the right to monitor the collection of
the  accounts  receivable  referred  to in this  Section  2(c)  and to take  all
reasonable  actions  as they deem  necessary  to assist the  Corporation  in tie
collection of such  receivables.  In order to  facilitate  such  monitoring  and
collection,  the  Corporation  shall prepare and provide  Sellers with a monthly
report of the collection of such receivables and shall provide access to Sellers
to pertinent account information. As soon as is reasonably practicable after the
end of the eight month period referred to in clause (i) above, Buyer shall cause
the Corporation to prepare and provide to Sellers a report showing the collected
and  uncollected  Effective  Date accounts  receivable  and the  Effective  Date
liabilities paid as of the end of such eight month period.

     3. The  Closing,  the  Closing  Date and the  Effective  Date.  The closing
referred  to in  Section 1 hereof  (the  "Closing")  will take  place at Buyer's
offices at 2:30 p.m.,  local time,  on November 14, 1995, or at such other place
or at such other  date and time as Buyer and Cohan  shall  agree.  Such time and
date are  referred  to  herein as the  "Closing  Date."  Regardless  of when the
Closing occurs,  it shall be effective as of 12:01 a.m. on November 1, 1995 (the
"Effective  Date"),  and  Buyer and  Seller  agree to  acknowledge  and use said
Effective Date for all purposes,  including for accounting and federal and state
tax  reporting  purposes.  Except as provided  in Section 11 hereof,  failure to
consummate the Closing on the date and time and at the place  selected  pursuant
to this  Section 3 shall not result in any  termination  of this  Agreement  and
shall not relieve any party to this Agreement of any obligation hereunder.


                                        2

<PAGE>






     4.  Representations  and Warranties by Sellers.  Except as specifically set
forth in Schedule 2 attached hereto,  each Seller hereby represents and warrants
to Buyer as follows:

         (a)  Organization,  Standing,  etc.  The  information  relating  to the
Corporation  and the  Shareholders  set  forth in  Schedule  1 is  accurate  and
complete  with  respect to the  matters  purported  to be covered  thereby.  The
Corporation  and Future Data  Resources,  Inc., a Delaware  corporation  that is
owned  by one or  more  of the  Shareholders  ("Data"),  are  duly  and  validly
organized  and  existing  corporations  in good  standing  under the laws of the
States of California and Delaware,  respectively,  with full power and authority
to carry on its business as presently  conducted,  and the  Corporation  is duly
qualified  and in  good  standing  as a  foreign  corporation  in the  State  of
Illinois.  The Corporation does not have any direct or indirect  interest of any
kind in any other corporation,  partnership,  association or business. Data is a
newly  organized  corporation  and, prior to the Closing Date, has not conducted
any business.  Except for an office in Illinois,  the Corporation  does not have
any facilities or employees outside of the State of California and, although the
Corporation has conducted certain business outside the State of California, such
activities do not require the  Corporation  to qualify to do business  under the
laws of any state other than Illinois.

         (b) Compliance with  Instruments and Agreements.  The execution of this
Agreement and the consummation of the transactions  contemplated hereby will not
result in any  breach or  violation  of any of the  terms or  provisions  of, or
constitute a default under,  (i) the articles of  incorporation or bylaws of the
Corporation,  (ii)  any  statute,  order,  rule or  regulation  of any  court or
governmental  agency  or  body  having  jurisdiction  over  any  Seller  or  the
Corporation or (iii) assuming that the required consents referred to in Schedule
8 attached  hereto are obtained at or prior to the Closing Date,  any agreement,
instrument or commitment to which any Seller or the  Corporation is a party,  by
which any of them is bound or to which any of their property is subject.

         (c)  Capitalization and Indebtedness for Borrowed Moneys.

              (i) Capitalization and Dividends. The Shares constitute all of the
issued and outstanding equity interests in the Corporation.  Sellers have caused
the  Corporation to deliver to Buyer true and complete copies of the articles of
incorporation  and  bylaws  of the  Corporation.  Since  January  1,  1995,  the
Corporation has not (A) paid any dividend to any Shareholder, (B) made any other
distribution  on or with  respect  to, or redeemed or  otherwise  acquired,  any
Shares or any other equity  interest in the Corporation or (C) made or permitted
any  change  in  the  authorized,  issued  or  treasury  shares  of  its  equity
securities.

              (ii)Indebtedness  for Borrowed  Moneys.  The Corporation  does not
have any outstanding indebtedness for borrowed moneys except as reflected in the
Balance Sheet included in Schedule 3 pursuant to subsection (f) below.  True and
complete copies of every  instrument,  agreement and other document  relating to
any such  indebtedness  have been delivered to Buyer.  The receipt by Buyer of a
duly  executed  Assignment  in the form of  Exhibit G attached  hereto  shall be
sufficient  to  transfer  to  Buyer  all  right,   title  and  interest  in  the
indebtedness of the  Corporation  referred to in the Balance Sheet as "2250-00 -
Notes  Payable  Image  America -  $202,696.67"  and all related  and  incidental
contract rights held by the holder of such indebtedness. Except for the "accrued
officers  salaries"  as  reflected  in Schedule  3,  immediately  following  the
Closing,  the Corporation  will not be indebted to or have any obligation to any
Shareholder, any of their respective relatives or any corporation,  partnership,
trust  or  other  entity  in  which  any  Shareholder  or  any  relative  of any
Shareholder (collectively, "Sellers, Affiliates") has any interest.

              (iiiOptions  or  Rights.  There  are  no  outstanding  agreements,
rights, subscriptions,  options, warrants, convertible securities,  commitments,
arrangements or  understandings  of any character under which the Corporation is
or may be  obligated to issue or purchase  any  interest in the  Corporation  or
under which any  Shareholder  is or may be  obligated  to sell or  transfer  any
Shares or other interest in the Corporation.


                                        3

<PAGE>






         (d) Title to Shares.  Each Shareholder has good and marketable title to
all of the Shares set forth opposite such Shareholder's name in Schedule 1, free
and  clear  of all  liens,  claims,  encumbrances  and  restrictions,  legal  or
equitable, of every kind, except for restrictions on transfer imposed by federal
or state  securities  laws or as provided  for on the  Shareholder's  respective
stock  certificates  evidencing  their  Shares.  Each  Shareholder  has full and
unrestricted  legal right, power and authority to sell, assign and transfer such
Shareholder's  Shares  without  obtaining  the  consent or approval of any other
person,  entity or governmental  authority (other than the consents described in
Schedule 8), and the delivery of the Shares to Buyer  pursuant to this Agreement
will transfer  valid title thereto,  free and clear of all liens,  encumbrances,
claims  and   restrictions   of  every   kind,   except  for   restrictions   on
transferability imposed by federal and state securities laws.

         (e) Assets of the Corporation.  The Corporation has good and marketable
title  to all of the  properties  and  assets  used in its  business  (including
leasehold interests as to such assets that are leased),  subject to no mortgage,
pledge, lien, security interest, encumbrance or other charge, other than (i) the
interests of equipment  lessors with respect to leased  equipment and (ii) liens
for taxes not yet due. The assets owned or leased by the Corporation  constitute
all of the assets currently in existence which are being used in connection with
the Corporation's business. The Corporation has, and will transfer to Data, good
title to all of the Corporation's  computer software and patents, as provided in
Section  6(j),  and no  such  computer  software  or  patent  conflicts  with or
infringes on, and no third party has asserted to the  Corporation  or any Seller
that such computer  software or patent  conflicts  with or infringes  upon,  any
proprietary rights owned or used by any third party.

         (f) Financial  Statements.  Attached hereto as Schedule 3 is a true and
complete  copy of the  unaudited  balance  sheet  (the  "Balance  Sheet") of the
Corporation  as of September 30, 1995 (the "Balance  Sheet Date").  Sellers have
also  caused  the  Corporation  to  provide  to Buyer  unaudited  statements  of
operations of the Corporation for the fiscal years ended March 31, 1994 and 1995
and for the six months ended on the Balance  Sheet Date.  The Balance  Sheet and
such  statements of operations (i) are in accordance  with the books and records
of  the  Corporation,  (ii)  fairly  present  the  financial  condition  of  the
Corporation  at the Balance Sheet Date and the results of its operations for the
periods  therein  specified  and (iii) have been  prepared  in  accordance  with
generally accepted accounting principles  consistently applied (except that such
financial statements are not audited and do not include footnotes and, as to the
interim financial statements, are subject to normal year end adjustments).

         (g)  Liabilities  of  the  Corporation.   Except  for  the  liabilities
reflected in the Balance Sheet or the documents described in Schedule 4, and all
other obligations  incurred in the ordinary course of business since the Balance
Sheet Date, the Corporation does not have and is not subject to any liability of
any nature,  whether  accrued,  absolute,  contingent  or  otherwise.  Any other
liabilities or  obligations  of the  Corporation  are  hereinafter  collectively
referred to as the  "Excluded  Liabilities."  Sellers  shall assume and hold the
Corporation and Buyer harmless from and against any and all Excluded Liabilities
as provided in Section 9 The Excluded Liabilities  include,  without limitation,
the following:

              (i) Any liability for any taxes,  including without limitation any
state or  federal  gross  receipts  or income  tax  imposed on or payable by the
Corporation  and any sales tax,  transfer or other  similar tax or  governmental
charge  associated  with or arising from the business of the  Corporation  on or
before the  Effective  Date (all of which  shall be the sole  responsibility  of
Sellers),  except for any real estate taxes that are payable by the  Corporation
pursuant  to the Lease and any  non-delinquent  personal  property  taxes on the
other assets of the Corporation  that are properly  accounted for on the Balance
Sheet;

              (ii)Any  liability  under any pending,  threatened or contemplated
litigation or administrative  proceeding,  including without limitation workers'
compensation  claims,  EEOC  claims,  sexual  harassment  allegations  and other
similar  claims  or  allegations  by  employees  or  former   employees  of  any
Corporation based upon acts or events prior to the Closing Date;


                                        4

<PAGE>






              (iiiAny  liability for personal  injury,  medical  malpractice  or
property damage which relates to the period prior to the Closing Date;

              (iv)Any  liability under products  liability,  strict liability or
implied  warranty claims  relating to services  rendered or products sold by the
Corporation or its independent contractors prior to the Closing Date;

              (v)  Any  debt  or  obligation  owed  by  the  Corporation  to any
Shareholder or any Sellers' Affiliate,  except for the accrued officers salaries
reflected in the Balance Sheet;

              (vi)Any liability related to any automobiles;

              (viiAny  obligation or liability  under or relating to any pension
or profit sharing plan or any bonus or incentive compensation  obligation to any
employee or independent contractor that is not reflected on the Balance Sheet;

              (viii) Any Medicare or Medicaid  contract,  or any other  possible
governmental   liabilities,   of  the   Corporation  or  any  affiliate  of  any
Corporation;

              (ix)Any  liability  or  obligation  associated  with the  computer
software or patents that are to be  transferred  to Data as described in Section
6(j);

              (x) Any  refund  liability  or  other  obligation  resulting  from
duplicate payments for services rendered prior to the Effective Date; and

              (xi)The  costs and expenses  associated  with this  Agreement,  as
described in Section 6(e).

         (h)  Noncompetition  Covenants.  The  Corporation is not subject to any
noncompetition  covenant or other similar  agreement  restricting its ability to
engage in competitive businesses and, following the Closing, Buyer, Primedex and
their  affiliates  will not be subject to any such  noncompetition  covenant  or
restrictive agreement by virtue of Buyer's acquisition of the Shares.

         (i) Account  Receivable.  A true and complete  list of all  outstanding
accounts  receivable  of the  Corporation  as of the Balance Sheet Date has been
delivered to Buyer. To Sellers'  knowledge,  all of the accounts receivable held
by the Corporation  are valid and enforceable  claims and are not subject to any
defenses, offsets, claims or counterclaims. The allowances for doubtful accounts
and  contractual  adjustments  reflected  in the  Balance  Skeet are based  upon
historic  collection  activities of the  Corporation and have been determined in
accordance with generally  accepted  accounting  principles.  Although no Seller
knows of any reason why such  accounts  will not be collected on a timely basis,
no  representation  is made hereby that such  accounts  will be  collected  and,
notwithstanding  any of the  provisions of this  Agreement,  Buyer's only remedy
with  respect to the  collection  of any such  accounts  receivable  shall be as
provided in Section 2(c).

         (j) Real Property Lease. Sellers have caused the Corporation to provide
to Buyer, true and complete copies of those certain Lease Agreements, each dated
as of May 23,  1995  (collectively  the  "Lease")  between the  Corporation  and
GreatWest Life Annuity & Insurance  Company (the  "Landlord")  pursuant to which
the  Corporation  leases the office  space and  related  leasehold  improvements
located at 6380 Wilshire Boulevard, Suites 900 and 908A, Los Angeles, California
(the "Real Property").  The Corporation has not assigned,  subleased or conveyed
any interest in the Lease or any of the premises covered  thereby.  The lease of
Suite 900  expires on November  30, 2000 and the lease on Suite 908A  expires on
June 30, 1998 and there is no current extension option.  Neither the Corporation
nor (to the best of each  Seller's  knowledge)  Landlord is in default under the
Lease and no event or condition has occurred or exists  which,  with the passage
of time, the giving of notice or both, would cause either the

                                        5

<PAGE>






Corporation  or (to the  best  of each  Seller's  knowledge)  Landlord  to be in
default  thereunder,  including without  limitation any deferred  maintenance or
repairs  for which  either  Landlord  or the  Corporation  is  responsible.  The
Corporation does not have any interest,  whether as lessee,  owner,  licensee or
otherwise, in any other real property.

         (k) Material Contracts.  Sellers have caused the Corporation to deliver
to Buyer an  accurate  list  (attached  hereto as  Schedule  4) of all  material
contracts,  leases and  instruments  to which the  Corporation  is a party or by
which it or any of its  assets  are bound as of the date  hereof.  For  purposes
hereof,  the  term  "material  contracts"  shall  mean  the  following:  (i) all
equipment  leases where the  aggregate  rent required to be paid on or after the
Effective  Date  under  the  terms of such  lease is at least  $5,000;  (ii) all
executory purchase agreements relating to the purchase of equipment, supplies or
other  goods  where the amount that is payable  after the  Effective  Date is at
least  $5,000;  (iii) all  agreements  with any  Shareholder  or any of Sellers,
Affiliates,  and Schedule 4 sets forth the relationship (if any) of any party to
any agreement, lease or other document listed in Schedule 4 with any Shareholder
or Sellers' Affiliate; (iv) all agreements with any physician,  owner of imaging
equipment  or  other  provider  of  radiology  services;   (v)  all  employment,
consulting  and  retainer  agreements;   (vi)  all  agreements  with  hospitals,
employers,  health maintenance organizations,  workers' compensation health care
organizations,  insurance companies,  preferred provider organizations and other
managed  care  entities,  or  other  contracts  whereunder  the  Corporation  is
committed to provide professional, technical or medical facility services; (vii)
all agreements with sales or marketing representatives; (viii) all documents and
instruments relating to any indebtedness  reflected on the Balance Sheet (except
any such  indebtedness  that  pursuant to the terms of this  Agreement  is to be
discharged at or prior to the  Closing);  (ix) all powers of attorney and agency
agreements with third parties;  and (x) all other  agreements and commitments in
which the financial obligation of the Corporation as of the Effective Date is at
least  $5,000.  Sellers have caused the  Corporation  to deliver to Buyer or its
counsel true and complete copies of the documents and  instruments  described in
Schedule 4.

         (l) Bank  Accounts.  Set  forth on  Schedule  5  attached  hereto is an
accurate  and  complete  list showing the name and address of each bank in which
the  Corporation  has an account  or safe  deposit  box,  the number of any such
account or safe  deposit  box and the names of all  persons  authorized  to draw
thereon or to have access thereto.

         (m) Tax Returns and Audits. The Corporation has accurately prepared and
filed all federal,  state and local income,  employment and property tax returns
and all  information  statements  required to he filed prior to the date of this
Agreement.  The Corporation  has withheld  proper and accurate  amounts from its
employees' compensation in full and complete compliance with all withholding and
similar  provisions  of all  state  and  federal  tax  laws,  including  without
limitation  employee  withholding and social  security taxes.  True and complete
copies of each of the most recent of any such material  return or statement have
been provided to Buyer.  Any federal,  state and local taxes required to be paid
or withheld with respect to the periods  covered by such returns and  statements
have been paid or withheld.  The liability for unpaid taxes shown on the Balance
Sheet is and will be  sufficient  to pay all taxes not reported on and paid with
returns  filed by the  Corporation  prior to' the Closing Date. No tax liability
will be incurred by the Corporation as a result of the transactions contemplated
by this Agreement.  The Corporation is not delinquent in the payment of any tax,
assessment  or  governmental  charge  or in the  filing  of any  tax  return  or
information statement. The Corporation does not have any tax deficiency proposed
or  assessed  against  it and has not  executed  any  waiver of any  statute  of
limitations  on the  assessment  or  collection  of any tax  which is  currently
effective.  Neither  the  federal  income tax  returns  nor the state  income or
franchise tax returns (if any) of the Corporation  have ever been audited by any
governmental authority.


                                        6

<PAGE>






         (n)  Litigation  and  Proceedings.  Except as  described in Schedule 6,
there are no legal claims,  actions,  suits,  disputes with payors or providers,
arbitrations or other legal,  administrative or governmental proceedings pending
or, to the knowledge of each Seller,  threatened  against the Corporation or any
properties,  assets or business of the Corporation and, to the knowledge of each
Seller,  no facts  exist  which  have  been or  should  be  reported  under  any
professional  liability  insurance policy covering the Corporation.  Neither the
Corporation  nor Seller is in default  with  respect to any  judgment,  order or
decree of any court, governmental agency or instrumentality. Schedule 6 contains
a complete and accurate  description of the status of any matter covered thereby
and the Corporation carries adequate insurance to cover the costs,  expenses and
damages of each of the matters  described  therein that include  allegations  of
medical  malpractice.  Except for normal collection efforts relating to accounts
receivable,  the Corporation is not engaged in any legal action to recover money
due to or damages sustained by the Corporation.

         (o)  Compensation  and  Benefits.  Attached  hereto as Schedule 7 is an
accurate and complete list setting forth the names,  dates of hire,  salaries or
other  remuneration,  bonuses and employee benefits of all current employees and
consultants of the  Corporation  (including but not limited to vacation time and
pay, severance pay, incentive compensation programs, sick time and pay and group
insurance  and other benefit  plans,  policies and  arrangements),  whether such
benefits  are  provided  pursuant  to  contract,   policy,  custom  or  informal
understanding. Sellers have caused the Corporation to deliver to Buyer copies of
the  Corporation's  written  employee  policies and  practices  (including,  for
example,  any employee  handbook).  The Corporation does not have any collective
bargaining agreement with any labor union and is not currently  negotiating with
a labor  union.  No  employee  of the  Corporation  has  ever  petitioned  for a
representation  election. No employee of the Corporation has ever filed with any
governmental  authority any claim  asserting  sexual  harassment,  age or racial
discrimination  or violation of OSHA by the Corporation,  any Shareholder or any
other officer, director, employee or agent of the Corporation.

         (p) Compliance with Law and Instruments. The business and operations of
the Corporation  have been and are being  conducted in material  compliance with
all  applicable  laws,  ordinances,  codes,  rules,  regulations  and  licensing
requirements of all authorities (collectively, "Laws") including but not limited
to Laws relating to occupational  safety,  health care,  zoning or environmental
matters.  No Seller or the Corporation has received notice from any governmental
unit or  administrative or regulatory agency claiming any violation of any. Law.
The  Corporation  has  complied in all  material  respects  with all  applicable
federal and state  securities  Laws in connection with the sale or resale of the
Shares and any other equity interest in the Corporation.  The Corporation  meets
in all material  respects the conditions for  participation  in the Medicare and
Medicaid programs. No governmental consent,  review or other process is required
in  connection  with the sale of the Shares  provided for herein or in order for
the  Corporation  to continue its business  following  the  consummation  of the
transactions  contemplated  hereby.  The Corporation has never received payments
for procedures covered by the Medicare and Medicaid programs. No Seller knows of
any  reason  why the  Corporation  will not or may not be able to  continue  its
business, as presently conducted, following the Closing.

         (q)  No  Consent   Required.   Except  for  the   consents  and  notice
requirements  described  in  Schedule  8, the  execution  and  delivery  of this
Agreement and the  consummation  of the  transactions  provided  herein will not
require any governmental consent,  review or other process or the consent of any
party to any lease (including the Lease),  contract,  agreement or instrument to
which the Corporation is a party or by which any of its assets is subject.

         (r)  Permits.  Schedule 9  attached  hereto  lists all of the  material
permits,  approvals and authorizations  that the Corporation holds in connection
with  its  business.   No  other  permit,   approval  or  authorization  of  any
governmental  unit or  administrative  or regulatory agency is necessary for the
lawful  conduct of the  Corporation's  businesses,  except  where the failure to
obtain  any  such  permit  would  not  have a  material  adverse  affect  on the
Corporation.  Sellers have caused the  Corporation to deliver to Buyer copies of
all permits, approvals and authorizations listed on Schedule 9.


                                        7

<PAGE>






         (s)  Absence of  Specified  Changes.  Except for the  transactions  and
agreement provided for or referred to herein, since the Balance Sheet Date there
has not been:  (i) any  transaction  by the  Corporation  except in the ordinary
course of business;  (ii) any capital  expenditure by the Corporation  exceeding
$5,000;  (iii) any material  adverse  change in the working  capital,  financial
condition,  business,  markets,  properties,  assets,  results of  operation  or
prospects of the  Corporation;  (iv) any event which has materially  affected or
may  materially  and  adversely  affect  the  Corporation,   including   without
limitation any material  reduction in the Corporation's  charge or fee schedule;
(v) any material  destruction,  damage to or loss of any  material  asset of the
Corporation,  whether or not covered by  insurance;  (vi) any  indebtedness  for
borrowed money incurred or the creation or imposition of any mortgage, pledge or
other  encumbrance  on any  asset of the  Corporation;  (vii)  any  increase  in
salaries or benefits to employees or independent contractors of the Corporation,
other than annual increases implemented in accordance with the past practices of
the  Corporation;  (viii)  any  material  amendment  to the  Lease or any  other
material  contract or lease  listed in  Schedule  4, other than in the  ordinary
course of business of the Corporation; (ix) any sale, transfer or disposition of
any equipment that is material to the  Corporation,  other than  dispositions in
the ordinary  course of business where the equipment  disposed of is replaced by
equipment  of at least  equal value and  utility;  or (x) any  agreement  by the
Corporation to do any of the things described in this subsection (s).

         (t) Insurance Policies.  Sellers have caused the Corporation to provide
to Buyer complete and accurate copies of all insurance  policies or certificates
of insurance  under which the  Corporation  is insured,  including  the coverage
limits and deductibles applicable thereto. The Corporation's medical malpractice
insurance  coverage has and will have coverage limits of at least $1,000,000 per
occurrence and $1,000,000 in the aggregate.  Attached hereto as Schedule 10 is a
listing of all of the insurance policies covering the Corporation or its assets,
which Schedule 10 reflects the policy numbers,  terms,  identity of insurers and
amounts of coverage.  All of such  policies are now and will be until Closing in
full force and effect on an occurrences  basis with no premium  arrearages.  The
Corporation  is not in default  with respect to any  provision  contained in any
such policy and has not failed to give any notice or present any claim under any
such policy in a due and timely fashion.

         (u) Retirement Plans. The Corporation has never maintained any pension,
profit sharing or other  retirement plan, nor does it participate in, nor has it
ever participated in, any  multi-employer  plan as defined in Section 400(a) (3)
of the Employee  Retirement  Income  Security Act of 1974,  as amended.  Neither
Buyer nor the  Corporation  will  incur any  obligation  or  liability  under or
relating to any such plan as a result of the  transactions  contemplated by this
Agreement, or otherwise.

         (v) No Brokers or Finders.  As a result of any act or failure to act by
any  Shareholders,  Sellers'  Affiliate or the Corporation,  no person or entity
has,  or as a result of the  transactions  contemplated  hereby  will have,  any
right,  interest  or  valid  claim  against  or  upon  Buyer,  Primedex  or  the
Corporation for any commission, fee or other compensation as a broker, finder or
any similar capacity.

         (w) Use of Names. The only names under which the Corporation  currently
conducts business are "Future Diagnostics, Inc." and "FDI". The Corporation owns
the entire  right,  title and interest in and to such names,  together  with any
derivatives thereof, and no third party has ever notified the Corporation or any
Seller that the use of any such name is in violation of the rights of such third
party.

         (x)  Equipment.  Each  material  item  of  equipment  will  be in  good
operating condition, normal wear and tear excepted, as of the Closing Date.

         (y)  Environmental Matters.

              (i)  The   Corporation   is  currently  in  compliance   with  all
Environmental  Laws (as  defined  below),  which  compliance  includes,  without
limitation,  the  possession  by  the  Corporation  of  all  permits  and  other
governmental  authorizations  required under  applicable  Environmental  Laws to
operate its  business,  and the  Corporal ion is in  compliance  in all material
respects with the terms and conditions thereof;

                                        8

<PAGE>






              (ii)No Hazardous Substances (as defined below) have been generated
or stored on, at or adjacent to the Real Property by the Corporation,  except in
compliance with applicable Environmental Laws;

              (iiiNo Hazardous  Substances have been disposed of or released on,
from or adjacent to the Real Property by the  Corporation,  except in compliance
with applicable Environmental Laws;

              (iv)The  Corporation  has not received any written  communication,
whether from a governmental authority,  citizen's group, employee, consultant or
otherwise, that alleges that the Corporation or the Real Property is not in full
compliance  with  Environmental  Laws, and there is no  Environmental  Claim (as
defined  below) pending or, to the best of each Seller's  knowledge,  threatened
against the Corporation or any owner or lessor of the Real Property; and

              (v) To the best of each Seller's knowledge, the Real Property does
not contain asbestos in any form.

         "Environmental  Claim"  means  any  claim,  action,  cause  of  action,
investigation  or notice by any person or entity  alleging  potential  liability
(including  without  limitation  potential  liability for  investigatory  costs,
cleanup costs,  governmental response costs, natural resources damages, property
damages,  personal injuries or penalties)  arising out of, based on or resulting
from  (A)  the  presence,  or  release  on or  from  the  Real  Property  or the
Corporation,  of Hazardous Substances or (B) circumstances  forming the basis of
any violation, or alleged violation, of any environmental law.

         "Environmental  Laws" means the  federal,  state,  regional,  county or
local  environmental,  'health  or safety  laws  (including  the  Medical  Waste
Tracking Act of 1988,  42 U.S.C.  ss.6992,  et seq.),  regulations,  ordinances,
rules and  policies  and common law in effect on the date hereof and the Closing
Date relating to the use, refinement,  handling,  treatment,  removal,  storage,
production,  manufacture,  transportation  or disposal,  emissions,  discharges,
releases or threatened releases of Hazardous  Substances,  or otherwise relating
to protection of human health or the environment  (including  without limitation
ambient air, surface water, ground water, land surface or subsurface strata), as
the same may be amended or modified to the date hereof and the Closing Date.

         "Hazardous  Substances" means any toxic or hazardous waste,  pollutants
or substances,  including without limitation medical wastes, asbestos containing
materials  or  substances,  any  substance  defined  or listed  as a  "hazardous
substance,"  "toxic  substance,"  "toxic  pollutant"  or  similarly   identified
substances or mixture,  in or pursuant to any  Environmental  Law and medical or
infectious wastes.

              (z) Payments.  The  Corporation  has not,  directly or indirectly,
paid or delivered or agreed to pay or deliver any fee,  commission  or other sum
of money, item of property or other consideration, however characterized, to any
person, governmental official or other party which is illegal under any federal,
state or local Law.

              (aa)Corporate  Records.  The minute books, stock certificate books
and  stock  transfer  ledgers  of  the  Corporation  are  in  the  Corporation's
possession,  are complete and accurate in all material  respects and reflect all
those  transactions and corporate acts which properly should have been set forth
therein.

              (bb)Investment Intent. Each Seller acknowledges that the shares of
Newco to be acquired  pursuant  hereto have been offered and will be transferred
to such Seller  pursuant to an  exemption  from  registration  under the federal
Securities Act of 1933, as amended,  and all applicable  state  securities laws.
Seller is acquiring such Shares of Newco for investment purposes only and has no
present intent to distribute,  resell,  pledge or otherwise  dispose of any such
Newco shares.


                                        9

<PAGE>






              (cc) Full Disclosure.  None of the representations,  warranties or
disclosures  made to Buyer  by the  Corporation  or  Sellers  herein,  or in any
exhibit,  schedule, list, certificate or memorandum furnished or to be furnished
to Buyer by the  Corporation or any Seller in connection  herewith,  contains or
will contain any untrue  statement of a material  fact or omits or will omit any
material  fact,  the  omission of which would tend to make the  statements  made
herein or therein misleading in any material respect.

     5.  Representations  and  Warranties  by Buyer.  Buyer and Primedex  hereby
jointly and severally hereby represent and warrants to Sellers as follows:

         (a)  Organization  and Good  Standing.  Buyer and Newco  each is a duly
organized and validly  existing  corporation  in good standing under the laws of
the  State  of  California,  with  full  power  and  authority  to  carry on its
businesses  as presently  conducted.  Primedex is a duly  organized  and validly
existing  corporation  under  the  laws of the  State  of New  York  and is duly
qualified  and in  good  standing  as a  foreign  corporation  in the  State  of
California,  with full power and authority to carry on its business as presently
conducted.  Each of Buyer and Newco are newly organized  corporations and, prior
to the Closing Date, have not conducted any business or incurred any liabilities
(other than organizational expenses).

         (b) Due Authorization.  The execution, delivery and performance of this
Agreement  by Buyer and  Primedex  have been duly  authorized  by all  requisite
action of the boards of directors of Buyer and Primedex and no further action is
necessary  to make this  Agreement  valid and binding upon Buyer and Primedex in
accordance with its terms.

         (c) Compliance with  Instruments and Agreements.  The execution of this
Agreement and the consummation of the transactions  contemplated hereby will not
result in any  breach or  violation  of any of the  terms or  provisions  of, or
constitute a default under,  the articles of  incorporation  or bylaws of either
Buyer or  Primedex,  any  statute,  order,  rule or  regulation  of any court or
governmental agency or body having  jurisdiction over Buyer or Primedex,  or any
agreement,  instrument or commitment to which Buyer or Primedex is a party or by
which  either  Buyer -or  Primedex is bound or to which any of their  respective
property is subject.

         (d) No Constant Required.  Except for the consents and approvals listed
in   Schedule  8,  no   authorization   or  consent  of  any  federal  or  state
administrative  or  regulatory  agency or other third party is required  for the
execution,  delivery and  performance of this Agreement by Buyer and Primedex or
for the  performance by Buyer and Primedex of the  transactions  contemplated by
this Agreement.

         (e) No Finders or Brokers.  As a result of any act or failure to act by
Buyer, Primedex or any of their affiliates,  no person, firm or corporation has,
or as a result of the  transactions  contemplated  hereby will have,  any right,
interest or valid claim upon the  Corporation or any Seller for any  commission,
fee or other compensation as a finder, broker or in any similar capacity.

         (f) Investment  Intent.  Buyer  acknowledges  that the Shares have been
offered and will be sold to Buyer  pursuant to an  exemption  from  registration
under the federal  Securities Act of 1933, as amended,  and all applicable state
securities laws. Buyer is purchasing the Shares for investment purposes only and
has no present intent to distribute,  resell, pledge or otherwise dispose of any
of the Shares.

         (g)  Full  Disclosure.  None  of  the  representations,  warranties  or
disclosures  made to Sellers by Buyer or  Primedex  herein,  or in any  exhibit,
schedule,  list,  certificate  or  memorandum  furnished  or to be  furnished to
Sellers by Buyer or Primedex in  connection  herewith,  contains or will contain
any untrue statement of a material fact or omits or will omit any material fact,
the omission of which would tend to make the  statements  made herein or therein
misleading in any material respect.


                                       10

<PAGE>






     6. Pre-Closing Covenants. The parties agree that from the date hereof until
the Closing Date or the termination of this Agreement:

         (a) Due Diligence. The Corporation and Sellers will afford officers and
authorized  representatives  of Buyer and Primedex with reasonable access to the
financial,   legal,  operational  and  statistical  books  and  records  of  the
Corporation and shall permit Buyer and Primedex to conduct physical  inspections
of the Real Property at such time or times as will not disrupt the Corporation's
business.

         (b)  Continuation of Business.  Sellers shall cause the Corporation to:
(i) except as required or permitted by this Agreement, conduct its business only
in the usual and ordinary course as it has previously been conducted,  including
without  limitation  its policies and  practices  relating to the  collection of
accounts receivable and the payment of trade payables and other liabilities, and
not introduce any new methods of management,  operations or accounting,  without
Buyer's prior written consent (which shall not be unreasonably  withheld);  (ii)
use its best  efforts to maintain  its  working  capital at or above the working
capital shown on the Balance Sheet; (iii) maintain the assets of the Corporation
in as good working  order and  condition as at present,  ordinary  wear and tear
excepted;  (iv) perform all material  obligations under material  agreements and
leases; (v) keep in full force and effect present insurance  policies;  and (vi)
maintain  and  preserve the business  organization  of the  Corporation  intact,
retain its present  employees and maintain its  relationships  with,  employees,
providers,  patients,  payors  and others  having  business  relations  with the
Corporation.

         (c) Actions Requiring  Consent.  From the date hereof until the Closing
Date,  without  Buyer's prior written  consent (which shall not be  unreasonably
withheld), except as required or permitted by this Agreement,  Sellers shall not
permit the  Corporation to: (i) prepay any debt in excess of $5,000 prior to its
stated maturity (except pursuant to an existing  amortization  payment schedule)
or enter into any contract or  commitment or incur or agree to incur any debt or
make any  capital  expenditure  requiring  the  payment  of amounts in excess of
$5,000; (ii) create or assume any mortgage,  pledge or other lien or encumbrance
upon any of its assets, whether now owned or hereafter acquired;  (iii) make any
loan; (iv) incur any debt or other monetary obligation,  other than normal trade
payables;  (v) amend the Lease or any  material  contract  listed in Schedule 4,
except  changes  made in the  ordinary  course of  business,  enter into any new
material  contract or change any employee  compensation  (except  normal  annual
salary  increases  implemented in accordance  with past practices) (vi) make any
commitment to reduce,  fix or otherwise limit  professional or technical fees or
rates or to purchase supplies,  equipment or services, unless such commitment is
cancellable  upon no more than 60 days notice;  (vii) fail to pay any obligation
in a timely manner prior to delinquency; or (viii) declare, set aside or pay any
dividend  or  distribution  to  its  shareholders,  or  directly  or  indirectly
purchase,  redeem or otherwise  acquire any  outstanding  equity interest in the
Corporation.

         (d)  Performance  Covenant.  Each of the parties  hereto  covenants and
agrees that it will take all action reasonably within its power and authority to
duly and timely  carry out all of its  obligations  hereunder,  to  perform  and
comply with all of the  covenants,  agreements,  representations  and warranties
hereunder  applicable  to it and,  as and to the extent such party has the power
and authority to do so, to cause all conditions to the  obligations of the other
parties  to close the  purchase  and sale of the  Shares  pursuant  hereto to be
satisfied as promptly as possible. Anything in any agreement, or any restriction
set forth on any stock certificate, to the contrary notwithstanding, each Seller
hereby  consents to the sale of the Shares to Buyer pursuant hereto without such
Shares being first offered to the Corporation or any Shareholder.

         (e) Costs of  Agreement.  Buyer and Sellers  agree to bear all of their
own expenses  incurred in preparing or complying with this Agreement,  including
without  limitation  all legal and  accounting  expenses and fees.  None of such
expenses shall be charged to or paid by the Corporation or Newco, whether before
or after the Closing Date.



                                       11

<PAGE>






         (f)  Governmental  Approvals.  The Corporation and Sellers shall assist
and cooperate  with Buyer and Buyer's  representatives  and counsel in obtaining
all governmental consents, approvals and licenses which Buyer deems necessary or
appropriate, and in the preparation of any document or other materials which may
be required by any  governmental  agency,  in connection  with the  transactions
contemplated herein.

         (g) No-Shop Clause.  Neither the Corporation nor any Shareholder  will,
without the prior  written  consent of Buyer  (which may be withheld by Buyer in
its sole discretion) (a) offer for sale any of the Shares or any equity interest
or assets of the  Corporation  (or any material  portion  thereof),  (b) solicit
offers  to buy  any of the  Shares  or any  equity  interest  or  assets  of the
Corporation (or any material  portion  thereof),  (c) hold  discussions with any
party (other than Buyer) looking toward such an offer or solicitation or looking
toward a merger or  consolidation  of the  Corporation,  or (d)  enter  into any
letter of intent or agreement  with any party (other than Buyer) with respect to
the sale or other  disposition  of any of the Shares or any equity  interest  or
assets of the Corporation (or any material  portion  thereof) or with respect to
any merger,  consolidation  or similar  transaction  involving any Seller or the
Corporation.

         (h) Transfer of Software.  At or prior to the Closing,  the Corporation
shall transfer to Data certain computer software assets and patents owned by the
Corporation  in exchange  for the  execution  and  delivery by Data of a License
Agreement substantially in the form of Exhibit A-1 attached hereto. The computer
software to be  transferred  is described in Annex 1 to said License  Agreement.
All other computer software assets owned by the Corporation shall be retained by
the  Corporation  and shall be  subject to a separate  License  Agreement  to be
entered into between the Corporation and Data, which separate license  agreement
shall be substantially in the form of Exhibit A-2 attached hereto.

         (i)  Interim  Operating  Reporting.  During the period from the date of
this  Agreement  to  the  Closing,  Sellers  shall  cause  the  officers  of the
Corporation and other management personnel of the Corporation (a) to confer on a
regular and frequent basis with one or more  representatives  of Buyer to report
material  operational  matters  relating  to the  Corporation  and to report the
general  status of on-going  operations,  (b) to notify  Buyer in writing of any
material adverse change in the financial position or earnings of the Corporation
after the Balance Sheet Date,  any unexpected  emergency or other  unanticipated
change  in  the  business  of  the  Corporation,  any  governmental  complaints,
investigations  or  hearings  or  adjudicatory  proceedings  (or  communications
indicating that the same may be contemplated) or any litigation,  arbitration or
other such matter that has been filed or threatened  against the Corporation and
(c) to keep Buyer fully  informed of such events and permit its  representatives
to  participate in all  discussions  relating  thereto.  Within 10 business days
following any  month-end  which occurs on or after the date of execution of this
Agreement,  Sellers  shall  cause  the  Corporation  to  provide  Buyer  with an
unaudited  balance sheet and income statement of the Corporation  which reflects
the  operations  of the  Corporation  for such month,  which  interim  financial
statements  shall be  prepared  in a manner  consistent  with the  policies  and
practices used in the preparation of the Balance Sheet.

         (j) Insurance Ratings.  Sellers shall cause the Corporation to take all
action reasonably  requested by Buyer to enable Buyer to succeed to the workers,
compensation and unemployment insurance ratings, deposits and other interests of
the Corporation for insurance purposes.  Buyer shall not be obligated to succeed
to any such rating,  insurance policy,  deposit or other interest,  except as it
may elect to do so.

     7. Conditions  Precedent to Obligations of Buyer.  The obligations of Buyer
and  Primedex  hereunder  are  subject to the  satisfaction,  on or prior to the
Closing Date, of the following conditions (unless waived by Buyer):

         (a)  Accuracy  of  Representations  and  Warranties  of  Sellers.   The
representations  and warranties of Sellers  contained in this Agreement shall be
true in all material respects on and as of the Closing Date with the same effect
as though such  representations  and  warranties had been made on and as of such
date. All of the agreements of Sellers and the Corporation to be performed on or
before the Closing Date  pursuant to the terms hereof shall have been  performed
in all material respects.


                                       12

<PAGE>






         (b)  Action  Restraining  or  Affecting   Transaction.   No  action  or
proceeding  before a court or any other  governmental  agency or body shall have
been instituted or threatened to restrain or prohibit the transfer of any of the
Shares, or which in the reasonable opinion of Buyer may otherwise materially and
adversely affect the Corporation,  and no third party or governmental  agency or
body shall have taken or threatened  any action with respect this Agreement as a
result of which  Buyer deems it  inadvisable  to proceed  with the  transactions
contemplated herein.

         (c)  Material  Changes.  The  Corporation  shall not have  suffered any
change,  loss or damage  since the  Balance  Sheet  Date  which  materially  and
adversely  affects  or  impairs  the  financial  condition   (including  without
limitation  the  working  capital)  of  the  Corporation  or the  operations  or
prospects of the Corporation.

         (d)  Governmental  Permits.  Buyer shall have  obtained  all  licenses,
certificates,  permits and rulings of, and made all notices to, all governmental
authorities  that may be  required in  connection  with the  acquisition  of the
Shares and the  continuation of the operation of the business of the Corporation
following the Closing.

         (e) Consents, Approvals and Authorizations. Sellers shall have obtained
all consents,  approvals and  authorizations  and given all notices  required in
connection with the transactions provided for herein, including the consents and
notices described in Schedule 8.

         (f) Legal Opinion.  Sellers shall have delivered to Buyer an opinion of
Parker, Milliken, Clark, O'Hara & Samuelian, P.C., counsel to Sellers and to the
Corporation, dated the Closing Date, covering the matters set forth in Exhibit B
attached hereto and, otherwise,  in form and substance satisfactory to Buyer and
its counsel.  In  rendering  such  opinion,  such counsel may rely as to factual
matters upon  certificates of public officials and upon certificates of officers
of the Corporation.

         (g)  Resignation  of Officers  and  Directors.  Each of the elected and
acting directors and officers of the Corporation shall have submitted his or her
resignation, effective as of the Closing Date.

         (h)  Transfer  of  Shares.   Sellers  shall  have  delivered  to  Buyer
certificates representing the Shares, duly endorsed in blank or accompanied by a
Stock Assignment Separate From Certificate from that is duly endorsed in blank.

         (i) Delivery of Corporate Records.  All of the books and records of the
Corporation,  including  but not  limited  to the  shareholder  register,  stock
certificate  book,  corporate  seal and minute books  containing  the minutes or
written  consents of all meetings of the  shareholders  and  directors  (and all
committees thereof) of the Corporation shall have been delivered to Buyer.

         (j)  Certificate.  If the  Closing  Date is other than the date of this
Agreement,  Buyer  shall  have  received  a  certificate,  signed by each of the
Shareholders  and  dated  as of  the  Closing  Date,  certifying  that  (i)  the
representations  and warranties of Sellers set forth herein are true and correct
as of the Closing Date and (ii) the  Corporation  and each Seller has  performed
all of their respective  obligations  under this Agreement that were required to
be performed  prior to or at the Closing  (except as  performance  may have been
waived by Buyer prior to or at the Closing).

         (k) License Agreements. Data shall have executed and delivered to Buyer
License Agreements in the form attached hereto as Exhibits A-1 and A-2.

         (1) Newco Shareholders Agreements.  Each Seller shall have executed and
delivered  a  Shareholders  Agreement  substantially  in the form of  Exhibit  C
attached  hereto,  relating to the shares of Newco stock to be issued to Sellers
pursuant to Section 2 (a) (ii).


                                       13

<PAGE>






         (m) Legal Matters. All actions, proceedings,  instruments and documents
required or  incidental  to carrying out this  Agreement  and all other  related
legal  matters  shall have been  approved by counsel for Buyer,  which  approval
shall not be unreasonably withheld.

         (n)  Employment  Agreement.  Cohan shall have executed and delivered an
Employment Agreement in the form attached hereto as Exhibit D.

         (o) Assignment.  Buyer shall have received an Assignment  substantially
in the form of Exhibit G attached hereto duly executed by MedAlliance, Inc.

     8.  Conditions  Precedent to  Obligations  of Sellers.  The  obligations of
Sellers  hereunder are subject to the  satisfaction,  on or prior to the Closing
Date, of the following  conditions (unless waived by Cohan, who is designated as
the duly authorized representative of Sellers for this purpose):

         (a) Accuracy of  Representations  and  Warranties  of Buyer;  Officer's
Certificates. The representations and warranties of Buyer and Primedex contained
in this Agreement shall be true in all material  respects as of the Closing Date
as though such  representations  and  warranties had been made at and as of that
time.  All of the  agreements of Buyer and Primedex to be performed by Buyer and
Primedex on or before the  Closing  Date shall have been duly  performed  in all
material  respects.  Buyer shall deliver to Seller's counsel certified copies of
all  resolutions  of the boards of directors of Buyer and Primedex  approving or
otherwise relating to this Agreement and the transactions  contemplated  hereby.
If the Closing date is other than the date of this  Agreement,  Buyer shall have
delivered to Sellers' counsel an officer's  certificate  attesting to compliance
with this Section 8(a).

         (b)  Action  Restraining  or  Affecting   Transaction.   No  action  or
proceeding  before a court or any other  governmental  agency or body shall have
been instituted or threatened to restrain or prohibit the transfer of any of the
Shares, or which in the reasonable  opinion of Sellers may otherwise  materially
and adversely affect Sellers,  and no third party or governmental agency or body
shall have taken or  threatened  any action with respect to this  Agreement as a
result of which  Sellers deem it  inadvisable  to proceed with the  transactions
contemplated herein.

         (c) Receipt of Consideration. Buyer shall have delivered to Sellers the
portion  of the  purchase  price  for  the  Shares  payable  at the  Closing  in
accordance with Section 2(a).

         (d) Legal Matters. All actions, proceedings,  instruments and documents
required or  incidental  to carrying out this  Agreement  and all other  related
legal matters shall have been  approved by counsel for Sellers,  which  approval
shall not be unreasonably withheld.

         (e) Guaranty.  Primedex and its subsidiary,  RadNet  Management,  Inc.,
shall have executed and  delivered to Sellers a Guaranty and Security  Agreement
in the form attached hereto as Exhibit F.

         (f) License  Agreements.  Primedex  and Buyer shall have  executed  and
delivered to Data License  Agreements  substantially in the form of Exhibits A-1
and A-2 attached hereto, respectively.

     9.  Indemnification.

         (a)  Indemnification by Buyer. Buyer and Primedex jointly and severally
covenant  and agree to  indemnify  and hold  Sellers  and their  successors  and
assigns at all times harmless from and against any loss,  liability,  damage and
expense (including reasonable attorneys, fees and other costs of defense) caused
by or arising out of any misrepresentation, breach of warranty or nonfulfillment
of any agreement on the part of Buyer or Primedex under this Agreement.


                                       14

<PAGE>






         (b) Indemnification by Sellers. Subject to the limitations set forth in
Section 9(c),  each Seller  covenants and agrees that such Seller will indemnify
and hold Buyer and the  Corporation  and their  successors and assigns and their
respective officers, directors, employees,  stockholders and agents at all times
harmless  from and against  any loss,  liability,  damage or expense  (including
reasonable attorneys,  fees and other costs of defense) caused by or arising out
of  or  in  connection  with  any  misrepresentation,   breach  of  warranty  or
nonfulfillment  of any agreement on the part of such Seller under this Agreement
or any Excluded Liability (as defined in Section 4(g) above).

         (c)  Limitations.  Any claim  asserted  against any Seller  pursuant to
Section 9(h) ("Claim") shall be subject to the following limitations:

              (i) The  liability  of each Seller  under  Section 9(b) or for any
breach of such Seller's  representations  and warranties  made in or pursuant to
this  Agreement  (other than the  representations  and  warranties  set forth in
Section  4(d) made by such  Seller)  shall be limited to such  Seller's pro rata
share of such liability  (based upon the amount such Seller  receives for his or
her Shares as compared to the total  consideration  paid by Buyer for all of the
Shares) and, in any event,  each Seller's total  liability  shall not exceed the
consideration  received (or which would  otherwise  have been received) for such
Seller's Shares  pursuant to this  Agreement,  with the Newco shares received by
Sellers being valued for purposes of this  subsection  (i) at the same price per
share paid (in cash and as an equity  contribution)  by  Primedex  for its Newco
shares that it retains as of December 31, 1995; provided,  however, that Sellers
shall have the option to deliver Newco  shares,  valued at such per share value,
in  satisfaction  of any  liability  under  Section  9(b) in  excess of the cash
consideration received (or which otherwise would have been received) pursuant to
this Agreement;

              (ii)Neither  Buyer nor the  Corporation  shall be entitled to make
any Claim  against  any  Seller  with  respect  to any  breach  of such  Sellers
representations  and warranties set forth herein at any time after May 31, 1997,
except for (A) Claims asserted in writing  pursuant to Section 9(b) on or before
May 31,  1997,  (B) Claims made with  respect to an Excluded  Liability  and (C)
Claims made with respect to any breach of Section 4(a), (b),  (c)(i),  (c)(iii),
(d), (e), (v), (y) or (z);

              (iiiNeither  Buyer nor the  Corporation  shall be entitled to make
any Claim  against any Seller with  respect to any  Excluded  Liability  or with
respect to any breach of any of the  representations  and warranties referred to
in  subsection  (ii) (C) above it any time after  December 31, 1999,  except for
such Claims  asserted in writing  pursuant to Section 9(b) on or before December
31, 1999; and

              (iv)All  Claims  against  Sellers  shall be satisfied  first as an
offset  against (or, if applicable,  as an adjustment  pursuant to Section 2 (c)
of) the payment  obligations  to Sellers set forth in Section 2(b),  but Sellers
acknowledge and agree that to the extent their  obligations  under Section 9 (b)
exceed the amount that remains due under Section  2(b),  they shall be obligated
to pay such excess Claims,  subject to the other  limitations  set forth in this
Section 9(c).

         (d) Undisputed  Claims. A party (the "Indemnified  Party") may assert a
Claim that it is entitled to, or may become entitled to,  indemnification  under
this  Agreement by giving  notice of its Claim to the party or parties that are,
or may become,  required to indemnify the Indemnified  Party (the  "Indemnifying
Party," whether one or more),  providing  reasonable details of the facts giving
rise to the Claim and a statement of the  Indemnified  Party's  loss,  damage or
expense  (including  attorneys'  fees  and  costs)  incurred,  suffered  or paid
(collectively,  the "Loss") in  connection  with the Claim or an estimate of the
amount of the Loss that it reasonably  anticipates that it will incur or suffer.
If the Indemnifying  Party does not object to the Claim during the 20 day period
following the date of delivery of the  Indemnified  Party's  notice of its Claim
(the  "Objection  Period"),  the Claim shall be  considered  undisputed  and the
Indemnified  Party shall be entitled to recover the amount of its Loss. The fact
that a Claim is not disputed by the  Indemnifying  Party shall not constitute an
admission  or create  any  inference  that the  asserted  Claim is valid for any
purpose other than the indemnity obligation of the Indemnifying Party as to such
Claim pursuant to this Section 9.


                                       15

<PAGE>






         (e)  Disputed  Claims.  If the  Indemnifying  Party gives notice to the
Indemnified  Party  within the  Objection  Period  that the  Indemnifying  Party
objects  to the  Claim,  then (i) the  parties  shall  attempt  in good faith to
resolve  their  differences  during  the 30 day  period  following  the  date of
delivery of the  Indemnifying  Party's notice of its objection (the  "Resolution
Period") and (ii) if the parties fail to resolve their  disagreement  during the
Resolution Period,  either party may unilaterally  submit the disputed Claim for
binding  arbitration in Los Angeles,  California in accordance with the American
Arbitration  Association's  rules for  commercial  arbitration  in effect at the
time.  The  award  of the  arbitrator  or  panel of  arbitrators  shall  include
reasonable  attorneys'  fees to the  prevailing  party and may be entered in any
appropriate court.

         (f) Third Party Suits.  In the case of any Claim relating to a claim by
a third party (a "Third Party Suit"),  the  Indemnified  Party shall control the
defense of the Third  Party  Suit and the  Indemnifying  Party  may,  at its own
expense,  participate  in (but not  control)  the  defense  and  employ  counsel
separate from the counsel employed by the Indemnified Party; provided,  however,
that the Indemnifying Party may assume control of the defense of the Third Party
Suit at any  time  during  the  course  of the  suit if the  Indemnifying  Party
confirms  in writing to the  Indemnified  Party  that the  Indemnified  Party is
entitled to  indemnification  under this Agreement with respect to the Claim and
for Losses  arising  out of the Third  Party  Suit.  If the  Indemnifying  Party
assumes  control of the defense of a Third  Party  Suits,  (i) the  Indemnifying
Party shall consult with the  Indemnified  Party with respect to the Third Party
Suit upon the Indemnified  Party's  reasonable request for consultation and (ii)
the Indemnified Party may, at its expense,  participate in (but not control) the
defense  and  employ  counsel   separate  from  the  counsel   employed  by  the
Indemnifying  Party.  Regardless of whether the  Indemnifying  Party assumes the
defense of the Third Party Suit, all parties shall cooperate in its defense.

         (g) Settlement or Compromise. Any settlement or compromise of any Third
Party Suit by the  Indemnified  Party shall also be binding on the  Indemnifying
Party in the same manner as if a final  judgment or decree had been entered by a
court of competent  jurisdiction  in the amount of the settlement or compromise.
The Indemnified  Party shall give the Indemnifying  Party at least 15 days prior
written notice of any proposed  settlement or compromise,  during which time the
Indemnifying  Party may assume the  defense of the Third  Party Suit and,  if it
does so (or if the Indemnifying  Party has already assumed control of such Third
Party Suit),  the proposed  settlement or compromise may not be made without the
Indemnifying Party's consent, which shall not be unreasonably withheld.

         (h) Failure to Act by Indemnified Party. Any failure by the Indemnified
Party to defend a Third Party Suit shall not relieve the  Indemnifying  Party of
its indemnification  obligations if the Indemnified Party gives the Indemnifying
Party at least 30 days prior written notice of the Indemnified Party's intention
not to defend and affords the  Indemnifying  Party the opportunity to assume the
defense.

         (i) Insured Claims. In case any event shall occur which would otherwise
entitle either party to assert a Claim for  indemnification  hereunder,  no Loss
shall be deemed to have been sustained by the Indemnified Party to the extent of
any proceeds received by the Indemnified Party from any insurance  policies with
respect thereto.

     10. Post-Closing Covenants.

         (a)  Adoption  of  Newco  Shareholders  Agreement.  Primedex  and  each
Shareholder  hereby adopts,  approves and agrees to be bound by the Shareholders
Agreement in the form attached to this Agreement as Exhibit C.



                                       16

<PAGE>






         (b) Release by Sellers and Sellers' Affiliates.  Except for liabilities
and obligations to any Shareholder or Sellers' Affiliates expressly described in
Schedule 4, each Seller, on behalf of itself and all Sellers' Affiliates,  as of
the Closing Date, hereby releases, discharges and acquits the Corporation of and
from any and all debts, liabilities and obligations of the Corporation to Seller
or any Sellers,  Affiliate,  including  without  limitation  all  management  or
consulting  fees,  cost  reimbursement  obligations  and  any  guarantee  of any
obligation of or to such Seller or Sellers' Affiliate;  provided,  however, that
this Section 10(b) shall not apply to any obligation of Buyer or the Corporation
expressly  provided for in this  Agreement,  including  without  limitation  the
"accrued  officers  salaries"  as  reflected  on Schedule 3. Each Seller  hereby
agrees that the  matters  released  hereby are not limited to matters  which are
known or  disclosed,  and hereby  waives any and all  rights and  benefits  that
Seller or any  Sellers'  Affiliate  now has or in the future may have  conferred
upon Seller or any Sellers' Affiliate.

         (c)  Noncompetition  Covenant.  Each  Seller,  for  himself or herself,
agrees  that,  within five years of the Closing Date and so long  thereafter  as
such Seller owns any interest in Newco (the "Non- Compete Period"),  such Seller
will not  directly  or  indirectly  (including  without  limitation  through any
directly or indirectly owned or controlled  affiliated  entity,  any entity that
directly or indirectly  controls or is under common  control with such Seller or
through any financial  interest held by immediate  family members of such Seller
or in trust for the benefit of such Seller's  immediate  family  members) engage
in, or have any interest in any  business,  facility or entity or in any person,
firm, corporation or other business (whether as a management employee,  officer,
director,  agent,  security  holder  (except  for the  ownership  of shares of a
publicly  held  corporation  purchased  through  a broker  on a  national  stock
exchange  or the  Nasdaq  System at an initial  purchase  price of not more than
$25,000),  creditor,  consultant  or  otherwise)  that  engages in, any activity
within any of the counties in the State of California or any of the other states
listed in Exhibit E attached hereto (which Sellers  acknowledge and represent is
a full and  complete  list of all  California  counties  and  states  where  the
Corporation is currently conducting business) that is the same as, similar to or
competitive with any activity engaged in by the Corporation;  provided, however,
that this  Section  10(c) is not  intended  to prevent  any such person from (i)
performing  professional  services at or for any  hospital or other  facility or
otherwise  practicing  medicine in a private  practice  which may  utilize  such
competing  facilities  from time to time,  (ii)  participating  on any  hospital
medical staff, committee, office or board so long as no compensation (other than
customary  fees  for  membership  on  general  oversight  or  quality  assurance
committees)  is paid to such person for  services  directly  related to any such
hospital's  diagnostic imaging facility or program or (iii) participating in the
activities  listed in  Schedules  11 and 12  attached  hereto (as to the Sellers
referred to in said Schedules).  In addition,  during the Non-Compete Period, no
Seller shall  recruit,  solicit or otherwise  seek to induce any employee of the
Corporation,  to  terminate  his or her  employment  or  independent  contractor
relationship with the Corporation. If, in any judicial proceeding, this covenant
not to compete is  declared  unenforceable  for being of too long a duration  or
covering too large an area,  then this  covenant  not to compete  shall still be
enforceable  for such maximum  period of time and within the largest  geographic
area as will make the covenant  enforceable.  Sellers acknowledge that he rights
and  privileges  granted to Buyer  herein are of special  and unique  character,
which gives them a peculiar  value,  the loss of which may not be  reasonably or
adequately  compensated  for by damages in an action at law, and that the breach
by any Seller of this  Agreement will cause Buyer great and  irreparable  injury
and damage.  Accordingly,  each Seller  agrees  that  Buyer,  together  with its
affiliates or any of them, shall be entitled to seek the remedies of injunction,
specific  performance  or other  equitable  relief  to  prevent a breach of this
Agreement,  without  limiting the  availability  of any other remedy  (including
monetary damages).

         (d) Books and Records;  Personnel. For a period of five years after the
Closing Date:

              (i) Buyer  shall not  dispose  of or destroy  any of the  material
books and records of the  Corporation  relating to periods  prior to the Closing
Date  ("Books and  Records")  without  first  offering  to turn over  possession
thereof  to  Cohan by  written  notice  to  Cohan it least 30 days  prior to the
proposed date of such disposition or destruction.

                                       17

<PAGE>







              (ii)Buyer shall allow Sellers and their agents access to all Books
and Records during normal working hours at Buyer's  principal  place of business
or at any  location  where any Books and Records are stored,  and Sellers  shall
have the  right,  at their  expense,  to make  copies of any Books and  Records;
provided,  however, that any such access or copying shall be had or done in such
a manner so as not to unreasonably  interfere with the normal conduct of Buyer's
and the Corporation's businesses.

              (iiiBuyer  shall make available to Sellers upon written notice (A)
copies of any Books  and  Records,  (B) the  Corporation's  personnel  to assist
Sellers in locating  and  obtaining  any Books and  Records,  and (C) any of the
Corporation's personnel whose assistance or participation is reasonably required
by Sellers or any of their  affiliates in anticipation  of, or preparation  for,
any litigation, tax or other matters in which any Seller is involved;  provided,
however,  that any such  copying  or  assistance  shall be had or done in such a
manner  so as not to  unreasonably  interfere  with the  normal  conduct  of the
Corporation's  business.   Sellers  shall  reimburse  the  Corporation  for  the
reasonable direct out-of-pocket expenses incurred by Buyer or the Corporation in
performing the covenants contained in this subsection (d).

         (e) Primedex  Funding of Buyer.  Primedex  hereby  agrees to provide to
Buyer the funds  necessary  for Buyer to pay the  purchase  price for the Shares
pursuant to Section 2 hereof. Primedex reserves the right to provide such funds,
or to cause one or more of its  affiliates  to provide  such funds,  pursuant to
capital  contributions,  loins or in any  other  manner  deemed  appropriate  by
Primedex,  hut the form in which  such  funds are  provided  to Buyer  shall not
affect the  absolute  and  unconditional  obligation  of  Primedex  to cause all
payments required by Section 2 to be made.

         (f) Audit of Corporation's  Financial  Statements.  Sellers acknowledge
and agree that Primedex,  through its  independent  accountants,  may conduct an
audit of the  Corporation's  financial  statements for years 1992-1995,  or some
portion  thereof,  for purposes of Primedex  complying with its public reporting
obligations  under the federal  securities laws.  Sellers agree to cooperate and
assist,  and to cause the Corporation and its employees to cooperate and assist,
in  such  audit  in all  respects  reasonably  requested  by  Primedex  and  its
independent   accountants,   including  without   limitation  making  themselves
available to provide any  information  necessary or appropriate  for such audits
and  signing  standard  management  representation  letters to such  independent
accountants.

     11. Termination.

         (a) By Mutual Consent. This Agreement may be terminated without further
obligation of the parties at any time prior to Closing by mutual  consent of the
parties hereto.

         (b) Damages.  No party shall be liable in damages to any other party as
a result of the failure to  consummate  the  transactions  contemplated  by this
Agreement  unless such failure is caused by the material breach of such party of
any of the terms of this Agreement.

         (c)  Unilateral  Termination.  If,  through  no fault of or breach by a
party hereto,  the Closing is not  consummated  on or before  November 30, 1995,
this  Agreement may be  unilaterally  terminated by written notice given by such
party to the other party.

     12.  Confidentiality.  Subject to Section  13,  prior to the  Closing,  the
parties hereto shall keep  confidential  all information  relating to the others
that it obtains  pursuant to this Agreement and shall use such  information only
for the  purposes  contemplated  by  this  Agreement.  In the  event  that  this
Agreement is  terminated  pursuant to Section 11, or  otherwise,  or the Closing
does not occur by reason of failure of one of the conditions to the Closing, the
parties  hereto  agree (a) to return to the  transmitting  party all  documents,
financial  statements  and other  information  furnished or copied in connection
with the  transactions  contemplated  by this  Agreement and (b) not to disclose
without the prior  written  consent of the  transmitting  party any  information
obtained with respect to the business or operations of the transmitting party or
any affiliate of such party.


                                       18

<PAGE>






     13. Publicity.  Prior to Closing, no public announcement or other publicity
regarding the  transactions  contemplated by this Agreement shall be made by any
party without the prior written  approval of Primedex and the  Corporation as to
form,  timing  and  manner of  distribution  or  publication.  Primedex  and the
Corporation  shall agree on the form and  content of any joint press  release or
other public announcement (including,  for example, letters to the Corporation's
employees,  providers  and payors)  which is to be  released  at or  immediately
following  Closing.  Nothing  in this  Section  13 or in  Section  12  shall  be
considered to prohibit any party from making any disclosure  required by any Law
or any court order.

     14.  Notices.  All  notices,  requests,  demands  and other  communications
required or  permitted  to be given  hereunder  shall be in writing and shall he
deemed to have been duly given when received if delivered  personally,  given by
prepaid telegram,  mailed first class, postage prepaid,  registered or certified
mail,  delivered  by  Federal,  Express  or other  courier  service,  or sent by
facsimile or other online transmission system, as follows:

         If to Buyer:

         RadNet Managed Imaging Services, Inc.
         1516 Cotner Avenue
         Los Angeles, California 90025-3303
         AttentionSteven R. Hirschtick,Senior Vice President and General Counsel
         FAX No. (310) 478-5810

         With a copy to:

         Robert D. Mosher
         Nossaman, Guthner, Knox & Elliott
         445 South Figueroa Street, 31st Floor
         Los Angeles, California 90071-1602
         FAX No. (213) 612-7801

         If to the Corporation or any Seller:

         c/o Jaana Cohan
         6380 Wilshire Boulevard, Suite 900
         Los Angeles, California 90048
         FAX No. (800) 517-7774

         With a copy to:

         Joseph G. Martinez
         Parker, Milliken, Clark, O'Hara Samuelian
         333 So.  Hope Street, 27th Floor
         Los Angeles, California 90071
         FAX No. (213) 683-6669

     15. Governing Law;  Interpretation;  Section Headings. This Agreement shall
be governed by and construed  and enforced in accordance  with the internal laws
of the State of  California.  The  section  headings  contained  herein  are for
purposes of  convenience  only and shall not be deemed to  constitute  a part of
this Agreement or to affect the meaning or  interpretation  of this Agreement in
any way.


                                       19

<PAGE>






     16. General.  This Agreement (including the Schedules and Exhibits referred
to herein) sets forth the entire agreement and understanding of the parties with
respect  to  the  transactions  contemplate  hereby  and  supersedes  all  prior
agreements,  arrangements  and  understandings  related  to the  subject  matter
hereof,  including without limitation the letter of intent,  dated as of October
24, 1995, among Buyer, Primedex and the Corporation. No representation, promise,
inducement  or statement of intention has been made by any party hereto which is
not  embodied  in this  Agreement,  or in the  Exhibits  hereto  or the  written
statements,  certificates or other documents delivered pursuant hereto.  Subject
to Section 9(c) hereof, all the terms, provisions,  covenants,  representations,
warranties and conditions of this Agreement  shall survive the Closing and shall
be binding  upon and inure to the benefit of and be  enforceable  by the parties
hereto and their  respective  successors  and  assigns.  This  Agreement  may be
amended,  modified,  superseded or canceled,  and any of the terms,  provisions,
covenants, representations,  warranties or conditions hereof may be waived, only
by a written  instrument  executed by all parties  hereto,  or, in the case of a
waiver, by the party waiving compliance. The failure of any party at any time or
times to require  performance of any provision  hereof shall in no manner affect
the right to enforce the same.  No waiver by any party of any  condition,  or of
the  breach  of  any  term,  provision,  covenant,  representation  or  warranty
contained in this Agreement, whether by conduct or otherwise, in any one or more
instances,  shall be deemed to be or construed as a further or continuing waiver
of any such  condition  or breach or a waiver of any other  condition  or of the
breach of any other term,  provision,  covenant,  representation or warranty. In
the event that any one or more of the provisions of this Agreement shall he held
or otherwise found to be invalid, illegal or unenforceable, all other provisions
hereof  shall be given  effect  separately  therefrom  and shall not be affected
thereby.  None  of  the  parties  hereto  shall  assign  any of  its  rights  or
obligations  hereunder  without the prior  written  consent of the other parties
hereto;  provided,  however,  and notwithstanding  the foregoing,  Buyer may (a)
prior to or at the  Closing  assign all or any  portion  of  Buyer's  rights and
obligations  pursuant  to this  Agreement  to any  wholly  owned  subsidiary  or
affiliate of Buyer,  and (b) after the Closing,  assign any or all of its rights
hereunder  without any consent or approval of any other party to this Agreement.
This Agreement is for the sole benefit of the undersigned  parties hereto and is
not for the benefit of any third party.

     17.  Further  Assurances.  Sellers  shall  execute and  deliver  such other
documents and instruments,  and take such other actions, as Buyer may reasonably
request in order more  fully to vest and  perfect in Buyer all right,  title and
interest in and to the Shares.

     18.  Counterparts.  Separate  copies of this Agreement may be signed by the
parties hereto, with the same effect as though all of the parties had signed one
copy of this Agreement. Signatures transmitted by facsimile shall be accepted as
original signatures.

     19.  Attorneys'  Fees. In any action at law or equity to enforce any of the
provisions  or rights  under  this  Agreement,  the  unsuccessful  party to such
litigation,  as determined by the court in any final  judgment or decree,  shall
pay  the  successful  party  or  parties  all  costs,  expenses  and  reasonable
attorneys'  fees incurred  therein by such party or parties  (including  without
limitation such costs, expenses and fees on any appeal or in connection with any
bankruptcy  proceeding),  and if the successful  party recovers  judgment in any
such action or proceeding,  such costs,  expenses and  attorneys'  fees shall be
included in and as a part of such judgment.

     20.  Interpretation of Agreement.  The parties hereto acknowledge and agree
that this  Agreement  has been  negotiated  at arm's length and between  parties
equally  sophisticated  and  knowledgeable  in the  matters  dealt  with in this
Agreement.  Accordingly,  any rule of law or legal  decision  that would require
interpretation  of any ambiguities in this Agreement  against the party that has
drafted it is not  applicable  and is waived.  The  provisions of this Agreement
shall be interpreted in a reasonable  manner to effect the intent of the parties
as set forth in this Agreement.



                                       20

<PAGE>






     IN WITNESS  WHEREOF,  the parties  hereto have executed this Stock Purchase
Agreement as of the day and year first above written.

BUYER:                                 RADNET MANAGED IMAGING SERVICES, INC.



                          By /s/ Howard G. Berger, M.D.
                             Howard G. Berger, M.D.
                                         President and Chief Executive Officer


THE CORPORATION:                       FUTURE DIAGNOSTICS, INC.



                                       By  /s/ Jaana Cohan
                             Jaana Cohan, President


SHAREHOLDERS:                              /s/ Michael Brant-Zawadzki, M.D.
                          Michael Brant-Zawadzki, M.D.


                                           /s/ Jaana Cohan
                                            Jaana Cohan


                             /s/ John V. Crues, M.D.
                               John V. Crues, M.D.


                                           /s/ Arnold S. Tesh
                                            Arnold S. Tesh


                                          /s/ William S. Wood
                                            William S. Wood














                          SECURITIES PURCHASE AGREEMENT
                                    EX- 10.26

     THIS SECURITIES  PURCHASE AGREEMENT  (hereinafter this "Agreement") is made
and entered  into as of this 22nd day of March,  1996,  by and between  PRIMEDEX
HEALTH SYSTEMS, INC., a New York corporation (hereinafter "PHS"), and DIAGNOSTIC
IMAGING SERVICES, INC., a Delaware corporation (hereinafter "DIS").

                              W I T N E S S E T H:

     WHEREAS,  PHS desires to purchase  from DIS, and DIS desires to sell to PHS
shares of its common stock,  $.01 par value and a warrant to purchase  shares of
its common stock, subject to the terms and conditions set forth herein;

     NOW, THEREFORE, in consideration of the premises and agreements hereinafter
set forth, and other good and valuable  consideration,  the receipt and adequacy
of which is hereby acknowledged, the parties hereby agree as follows:

     1.  Sale and Purchase of the Shares.

         (a) Sale of  Shares.  Upon the terms  and  subject  to the  conditions,
representations,  warranties and agreements of this Agreement,  Purchaser hereby
purchases  2,747,493  shares of DIS common stock,  $.01 par value (the "Shares")
and a five  year  warrant  to  purchase  an  additional  1,521,739  Shares  (the
"Warrant") from DIS, and DIS hereby sells the Shares and Warrant to PHS free and
clear of all liens, charges,  encumbrances,  equities, claims and options of any
nature whatsoever. The Warrant shall be in the form of Exhibit 1 attached.

         (b)  Purchase  Price.  As full  payment  for the Shares and Warrant PHS
shall  pay  DIS  a  purchase  price  of  Three  Million   Dollars   ($3,000,000)
(hereinafter the "Purchase Price") at the Closing.

     2.  Conditions to Closing.

         (a) DIS, PHS and Norman  Hames shall have  entered into a  Stockholders
Agreement in the form of Exhibit 2(a) attached.

         (b) DIS and PHS shall have entered into a Management Services Agreement
in the form of Exhibit 2(b) attached.

         (c) DIS and PHS shall have entered into a loan agreement in the form of
Exhibit 2(c) attached  whereby PHS shall make available to DIS up to $1,000,000,
all of which shall be advanced to DIS at the Closing.

         (d) DVI Financial  Services,  Inc., or its affiliate  shall have loaned
PHS $5,000,000.

     3. Closing.  The Closing shall be held at 1516 Cotner Avenue,  Los Angeles,
California,  at 11:00 A.M. on March 22,  1996,  or at such other time or at such
other place as may be mutually  approved by the parties in writing  ("Closing").
At the  Closing  the  consideration  required  by  Section 1  together  with the
documents  required  by Section 2 shall be  delivered  whereupon  the Shares and
Warrant shall be delivered  together with the other  certificates  and materials
required by this Agreement to be exchanged at the Closing.

     4.  DIS  Representations.  As an  inducement  to PHS  to  enter  into  this
Agreement  and  consummate  the  transactions  contemplated  hereby,  DIS hereby
represents and warrants to PHS and agrees as follows:



<PAGE>





         (a) Due  Organization.  DIS is a duly  organized  and validly  existing
corporation  under the laws of the Slate of Delaware and has the corporate power
and lawful authority to own its properties and to transact the business in which
it is currently  engaged.  DIS is not,  and is not required to be,  qualified to
transact business as a foreign corporation in any jurisdiction.  DIS is the sole
shareholder  of  Diagnostic  Imaging  Services,  Inc., a California  corporation
("DIS-CA").  DIS-CA is duly  organized  and validly  existing  under laws of the
State of California and has the corporate power and lawful  authority to own its
properties and to transact the business in which it is currently engaged. DIS-CA
is not and is not required to be,  qualified  to transact  business as a foreign
corporation in any other jurisdiction.

         (b) Power and  Authority.  DIS has full  corporate  power to enter into
this  Agreement and to carry out its  obligations  hereunder.  The execution and
delivery of this Agreement and the consummation of the transactions contemplated
hereby have been  authorized by the DIS Board of Directors.  No other  corporate
acts or  proceedings  on the part of DIS will be  necessary  to  authorize  this
Agreement or the transactions  contemplated hereby. This Agreement constitutes a
valid and legally  binding  obligation of DIS and is enforceable  against DIS in
accordance with its terms.

         (c)  Ownership  of Shares.  The  authorized  capital of DIS consists of
20,000,000  shares of common stock, $.01 par value of which 8,562,617 shares are
issued and  outstanding,  together with  2,482,000  shares of Series F Preferred
Stock and 2,000,000 shares of Series G Preferred Stock which are outstanding out
of an  authorized  5,000,000  shares of  Preferred  Stock.  All of the Shares of
capital stock of DIS are validly issued, fully paid and nonassessable. There are
no agreements,  arrangements, options, warrants, calls, rights or commitments of
any character relating to the issuance, sale, purchase, retirement or redemption
of any  Shares,  except as set forth in the Form 10-K for DIS for the year ended
December 31, 1994, a copy which is attached hereto and marked as Exhibit 4(c)-1,
or except as may be issued pursuant to a proposed Series H Preferred Stock to be
issued  in  connection  with  the  retirement  of  certain  debt  the  presently
contemplated particulars of which are attached hereto as Exhibit 4(c)-2.

         (d) Validity of Shares and Warrant. The Shares and Warrant, when issued
in accordance  with the terms of this Agreement will be duly and validly issued.
The issuance of the Shares and Warrant and any subsequent issuance of the shares
underlying the Warrant are not and will not be subject to any preemptive  rights
or rights of first refusal and, when issued,  sold,  and delivered in compliance
with the  provisions  of this  Agreement  and the terms of tile  Warrant  and in
accordance with the DIS Certificate of  Incorporation,  the Shares,  Warrant and
shares   underlying  the  Warrant  will  be  validly  issued,   fully  paid  and
nonassessable, and will be free of any liens with the shares of DIS common stock
issuable on exercise of the Warrant  having been duly reserved for issuance upon
exercise;  provided, however, that the Shares, Warrant and shares underlying the
Warrant will be subject to  restrictions  on transfer under state and/or federal
securities laws as set forth herein or as otherwise required by such laws at the
time a transfer is proposed.

         (e) Offering. Assuming the accuracy of the representations contained in
Section 5 hereof,  the offer,  issue and sale of the Shares and  Warrant are and
will be exempt from the  registration  requirements  of the 1933 Securities Act,
and have been  registered  or  qualified  (or are exempt from  registration  and
qualification) under the registration,  permit or qualification  requirements of
federal and California law.

         (f) No  Breach.  This  execution,  delivery  and  performance  of  this
Agreement and the consummation of the transactions contemplated hereby will not:

(i) violate any provision of the Certificate of Incorporation or By-Laws of DIS;

       (ii)violate any order,  judgment,  injunction,  award or decree of
any court,  arbitrator or governmental  or regulatory  body against,  or binding
upon DIS, or upon the properties or business of DIS; or

    (iii)violate any statute, law or regulation of any jurisdiction applicable 
to the transactions contemplated herein; or


                                        2

<PAGE>





              (iv)conflict with, result in a breach of the terms,  conditions or
provisions of, or constitute a default, an event of default or an event creating
rights of acceleration,  termination,  or cancellation under, the Certificate of
Incorporation or Bylaws of DIS, or any note,  instrument,  agreement,  mortgage,
lease, license, permit,  judgment,  order, award, decree or other authorization,
right,  restriction  or  obligation  to  which  DIS  is a  party  or  any of its
properties is subject or by which any of them is bound or any statute, other law
or regulatory provision affecting any of them; or

              (v) requiring the approval,  consent or  authorization  of, or the
making of any declaration,  filing or registration  with, any third party or any
foreign,  federal,  state or local court,  governmental  authority or regulatory
body,  except  for such  filings  as are  required  pursuant  to the  Rules  and
Regulations of the Securities and Exchange Commission.

         (g) Financial Statements and Other Financial Information.  Exhibit 4(c)
hereto  contains:  (i) the audited balance sheet and statements of operations of
DIS as of December 3 1, 1994 (herein  sometimes  called the "Balance Sheet") and
the related  statements  of operations  and retained  earnings for the year then
ended,  together with appropriate  notes to such financial  statements.  Exhibit
4(g)  attached  hereto is the DIS Form 10-Q for the nine months ended  September
30, 1995 and contains the  unaudited  balance  sheet and statement of operations
for the nine month period then ended.  (the  "Interim  Statement").  The Balance
Sheet and Interim  Statement  are  hereinafter  collectively  referred to as the
"Financial  Statements." The financial  statements  present fairly the financial
condition,  results of operations and charges in financial position of DIS as at
the dates or for the periods  indicated  therein in  conformity  with  generally
accepted  accounting  principles  applied  on  a  consistent  basis  (except  as
otherwise indicated in such Financial Statements or the notes thereto), subject,
in the case of unaudited interim consolidated financial statements,  to year-end
adjustments consisting only of normal recurring accruals.

         (h)  Operations Since Interim Statement Date.

              (i) Since September 30, 1995, there has been,  except as otherwise
described in this Agreement:  (i) no material  adverse change (either in any one
case or in the  aggregate)  in the assets,  properties,  liabilities,  business,
prospects or in the  condition,  financial or  otherwise,  of DIS and no fact or
condition exists which might cause such a change in the future;  (ii) no damage,
destruction,  loss or claim, to assets, whether or not covered by insurance,  or
condemnation  or other  taking of  assets,  affecting  the  properties,  assets,
business or prospects of DIS; and (iii) no other occurrence,  event or condition
(either in one case or in the aggregate) which adversely affects the properties,
assets, business or prospects of DIS.

              (ii)Since September 30, 1995, DIS has not: (A) issued,  delivered,
agreed (actually or  contingently)  to issue or deliver,  or granted any option,
warrant or right to purchase,  any capital stock, or security  convertible  into
capital stock, or any bonds,  notes, or other securities,  or borrowed or agreed
to  borrow  any  funds;  (B) paid  any  obligation  or  liability  (absolute  or
contingent) other than current liabilities reflected in the Financial Statements
and current  liabilities  reasonably  incurred since  September 30, 1995, in the
ordinary course of business; (C) declared or made, or agreed to declare or make,
any payment of dividends or distributions to shareholders or purchased, retired,
redeemed or  otherwise  acquired,  or agreed to  purchase,  redeem or  otherwise
acquire  any,  of its  capital  stock;  (D)  except  in the  ordinary  course of
business,  mortgaged,  pledged or encumbered any assets; (E) except for its sale
of its mobile MRI in San Diego, sold, leased, abandoned or otherwise disposed of
any real  property  or  interest  therein or any  machinery  equipment  or other
operating  property  or  sold,  licensed,  assigned,  transferred  or  otherwise
disposed of any patent,  or  application  therefor  or any  invention,  process,
know-how,  formula,  pattern, design, trade secret or other intangible asset or,
except for fair value in the ordinary course of business, sold or transferred or
agreed to sell or transfer any other assets;  (F) otherwise than in the ordinary
course of business  canceled or agreed to cancel any debts or claims,  waived or
agreed to waive any  rights of value,  or  allowed to lapse or failed to keep in
force  any  franchise,  permit  or other  authorization  or  right;  (G) made or
permitted  any amendment or  termination  of any material  contract,  license or
other  agreement;  (H)  otherwise  than  in  the  ordinary  course  of  business
undertaken  or  committed  to  capital  expenditures  exceeding  $10,000  in the
aggregate; (I) other than in


                                        3

<PAGE>





the ordinary course of business  instituted,  or made any material  increase in,
any salary, profit sharing, bonus, incentive, deferred compensation,  insurance,
pension, retirement,  medical, hospital,  disability,  welfare or other employee
benefit plan; (J) other than in the ordinary course of business made any accrual
or arrangement  for or payment of any bonus or special  compensation of any kind
or any severance or termination pay to any present or former officer or employee
during the past year; (K) made any change in the accounting policies, methods or
practices  followed  by  DIS  or  made  any  material  change  in  depreciation,
amortization  or inventory  valuation  policies or rates or methods  theretofore
used or adopted except as reflected in the Financial Statements; (L) amended its
Certificate of Incorporation or Bylaws;  or (M) entered into or become committed
to enter into any other material  transaction  except in the ordinary  course of
business.

         (i)  No  Undisclosed  Liabilities.  DIS is not  aware  of any  material
liability,  absolute or contingent,  accrued or unaccrued, which is not shown or
which is in excess of amounts shown or reserved for in the Financial  Statements
or referred to in the notes thereto,  other than  liabilities of the same nature
as those set forth in the Financial  Statements and notes thereto and reasonably
incurred in the ordinary course of its business after September 30, 1995.

         (j) Taxes. DIS has filed all federal,  state, county, local and foreign
income,  excise,  property,  sales and other tax returns which are required,  by
statute, other law, regulation or otherwise, to be filed up to and including the
date hereof and have paid all taxes (and any other governmental charges, duties,
penalties,  interest or fines) which have become due pursuant to such returns or
otherwise,  or  pursuant  to any  assessment  which has become  payable,  and no
extension of the time for filing any tax return is presently in effect. All such
returns  and the returns to be filed by DIS with  respect to any interim  period
thereafter are or will be true and correct to the extent filed prior to the date
of this  Agreement.  To the extent  that any tax  liability  or  assessment  had
accrued  but had not yet  become  payable at  September  30,  1995,  or has been
proposed for  assessment or  determined  but remains  unpaid,  the same has been
reflected  as a liability  on the books and records of DIS and in the  Financial
Statements  or referred to in the notes  thereto.  Tax reserves are adequate for
contingent  liabilities  which may arise after the date of this Agreement due to
events prior to the execution of this  Agreement.  No waiver or extension of the
statute of  limitations  relating to the  assessment  of any federal  income tax
against DIS is presently  in effect and DIS has not been  notified of any audit.
All payments for  withholding  taxes,  unemployment  insurance and other amounts
required to be paid to any governmental authority in respect of employees of DIS
have been  paid or duly  provided  for on their  respective  books and  records,
except for approximately  $400,000  presently due on unpaid  withholding  taxes,
which is in the  process of being  incrementally  paid and should be paid within
the next 24 months.

     The tax  returns  for DIS have  never  been  examined  by any  governmental
authority.

         (k)  Availability  and  Ownership  of Assets and  Legality of Use.  The
assets owned or leased by DIS  constitute  all of the assets used and needed for
its  business  as it has  historically  been  conducted  by it,  are in good and
serviceable  condition,  ordinary wear and tear  excepted,  and suitable for the
uses for which  intended;  and such assets and their use conform in all material
respects to all applicable laws, regulations, rules, ordinances, codes, licenses
and permits (including without limitation, building, business use, environmental
and occupational safety and health requirements),  and no notice of any material
violation of any applicable law, regulation,  rule, ordinance,  code, license or
permit relating to such assets and their use has been received by Seller.

         (l) Accounts  Receivable;  Inventories.  All accounts receivable of DIS
have  arisen  from a bona  fide  transactions  by it in the  ordinary  course of
business  and DIS has  received  no notice  that such  accounts  receivable  are
subject to defense, counterclaim or setoff or are in dispute except as otherwise
stated in this  Agreement.  All of such accounts are good and collectible at the
aggregate   recorded  amounts  thereof,   net  of  any  applicable  reserve  for
contractuals  and doubtful  accounts which reserves (i) with respect to accounts
receivable  shown in the Financial  Statements are reflected  thereon,  and (ii)
with respect to accounts  receivable  acquired  since  September  30, 1995,  are
reflected  on the books and records  and are not in excess of an amount  bearing
the same  proportion to such accounts  receivable as the applicable  reserves in
the Financial  Statements bear to the aggregate  recorded amount of the accounts
receivable shown on such Financial Statements.


                                        4

<PAGE>





         (m) No Violation or  Litigation.  (i) DIS has received no notice of any
facts which would lead it to believe  DIS is in  material  violation  of, or has
violated, any law, regulation,  rule, writ,  injunction,  decree or order of any
court  or  any  foreign,   federal,   state,   municipal  or  other  government,
governmental  department,  commission,  board, bureau, agency or instrumentality
which will result in expense or interfere  with the business of DIS;  (ii) there
are no material lawsuits,  claims, suits,  proceedings or investigations pending
or to the  best of its  knowledge  threatened  against  or  affecting  DIS,  its
officers or  directors or its  properties,  operations,  or business;  and (iii)
there is no action,  suit or proceeding by any governmental agency pending or to
the best of its knowledge  threatened  which questions the legality or propriety
of this Agreement or the transactions  contemplated  hereby.  DIS is in material
compliance with all laws,  regulations,  rules, writs,  injunctions,  decrees or
orders  of  any  court  or any  foreign,  federal,  state,  municipal  or  other
government,  governmental  department,  commission,  board,  bureau,  agency  or
instrumentality which govern its business.

         (n) Insurance.  DIS keeps  insurance of a type and in amounts  standard
for its industry in full force and effect. DIS is not in default or breach under
any of such  insurance  policies or has not failed to give any notice or present
any claim thereunder in a due and timely manner.

         (o) Real Property. DIS owns no real property.

         (p) Real  Property;  Leases.  (i) a description  of each lease or other
agreement  (showing the annual rental,  the expiration date, option periods,  if
any, a street  address of the real property  covered and a brief  description of
the improvements thereon) under which DIS is lessee of, or holds or operates any
real  property,  (ii) a description  of all other  interests in real property of
DIS,  and  (iii)  a  description  of  any  other  contract,   agreement,  lease,
concession, or commitment relating to or affecting real property or any interest
therein  to which DIS is a party or by which DIS is bound has been  provided  to
PHS. All of said leases are valid and in full force and there does not exist any
default or event that with  notice or lapse of time or both would  constitute  a
default  under  any of those  leases.  None of the  rights of DIS under any such
leasehold  or  other  interest  in  such  real  property  will  be  impaired  by
consummation of the transactions contemplated by this Agreement.

         (q) Easement; Ingress;  Condemnation.  DIS has all easements and rights
for  ingress  and  egress  and for  utilities  and  services  necessary  for the
operations  presently conducted by it. Neither the whole or any part of any real
property  or  interest  therein  owned,  leased,  used  or  occupied  by  DIS is
threatened by condemnation.

         (r) Personal  Property.  DIS owns or leases all the  personal  property
used to conduct its business. DIS has good, indefeasible and marketable title to
all personal  property  that it purports to own,  free and clear of all security
interests,  liens,  encumbrances,  pledges,  defects in title,  restrictions and
other burdens, except as has previously been disclosed to PHS.

         (s)  Personal  Property;  Leases.  A  list  of  all  leased  machinery,
equipment,   vehicles  and  other  leased  tangible   personal  property  and  a
description of all other  interests,  of DIS in tangible  personal  property has
been  delivered  to PHS.  None of the rights of DIS under any such  leasehold or
other  interest  in  tangible   personal   property  will  be  impaired  by  the
consummation of the transactions contemplated by this Agreement.

         (t) Governmental and Other Authorizations. DIS has all governmental and
other licenses, permits, orders, certificates and other authorizations necessary
to own or lease its properties,  to operate its respective properties and assets
and to carry on its business as now  conducted  ("Permits").  All of the permits
are in full force and effect and constitute legal, valid and binding obligations
of the  respective  parties  hereto,  and will not be  materially  affected as a
result of the  execution of this  Agreement.  No  proceeding  or other action is
pending or  threatened  to revoke or limit any of the  Permits,  and there is no
basis for any such  revocation or limitation.  DIS has not breached or defaulted
under,  nor is it in breach or default under, nor is it alleged to have breached
or defaulted under, any of the Permits and no event has occurred which, with the
passage of time or the giving of notice or both, would constitute such a default
or breach.


                                        5

<PAGE>





         (u) Patents, Trade Names,  Trademarks and Other Rights. DIS owns or has
the perpetual royalty free right to use all patents,  trademarks,  servicemarks,
copyrights, trade names, inventions,  improvements,  processes,  formulae, trade
secrets, know-how and proprietary or confidential information used in conducting
its business or which are necessary to continue such business hereafter. DIS has
no  knowledge  or notice  that any  infringement  of any patent,  patent  right,
trademark,  servicemark,  trade name,  brand name or copyright  or  registration
thereof has  occurred or results in any way from the  operations  or business of
DIS. DIS has had no notice of, or knowledge of any basis for, a claim against it
that  any of its  operations,  activities,  products,  equipment,  machinery  or
processes  infringes  the  patents,  trademarks,   servicemarks,   trade  names,
copyright or other property rights of others.

         (v)  Employees and Agents and Related Agreements.

              (i) DIS is not a party to or bound by any (A) employee  collective
bargaining  agreement,  employment  agreement,  consulting  agreement,  deferred
compensation  agreement,  or covenant not to compete except for those agreements
with  Norman  Hames and Daniel  Steinell;  (B)  contract or  agreement  with any
officer,  director shareholder or employee,  agent or  attorney-in-fact;  or (C)
employees'  pension,  profit  sharing,  stock option,  bonus,  incentive,  stock
purchase,  welfare,  life insurance,  hospital or medical benefit plan (DIS does
have a medical  benefit plan, the provisions of which have been provided to PHS)
or any other  employee  benefit  agreement  or plan.  DIS's  relations  with its
employees is satisfactory.

              (ii)No shareholder, director or officer of DIS, (A) owns, directly
or  indirectly,  any interest  in, or is a director,  officer or employee of, or
consultant  to, any entity which is a  competitor,  supplier or customer of DIS;
(B) owns directly or  indirectly,  in whole or in part,  any property,  asset or
right,  tangible  or  intangible  (including,  but not  limited  to, any patent,
trademark,  serviceman,  trade name, brand name, copyright,  pending application
for  any  patent,  trademark,  serviceman,  or  copyright,  invention,  process,
know-how,  formula,  design  or  trade  secret)  which  is  associated  with any
property,  asset or right owned by DIS or which DIS is  presently  operating  or
using or the use of which is necessary for its business;  (C) is, subject to any
agreement  with any  person  or entity  requiring  such  shareholder,  director,
officer or employee to assign any interest in any inventions or trade secrets or
to  keep   confidential  any  information  or  containing  any  prohibitions  or
restriction of competition or solicitation of customers.

         (w) Status of Contracts. Each of DIS' material contracts is a valid and
binding  obligation  of the parties  thereto.  DIS has not breached or defaulted
under,  nor is it in breach or  default  under,  or has  notice of any breach or
default under,  any of the contracts and, no other party to any of the contracts
has breached or defaulted under any of the contracts,  and no event has occurred
which,  with  the  passage  of time or the  giving  of  notice  or  both,  would
constitute  such a default or breach by DIS or, by any such otter party. In late
1995, DIS received a notice of default under a financing  arrangement with Sanwa
Bank.  The  financing is current and has been for sometimes  however,  Sanwa has
never withdrawn the default notice.

         (x) Use of Proceeds.  DIS will utilize the Purchase  Price and PHS loan
proceeds totalling$4,000,000 as payment against what is referred to as its "Loan
B" from DVI Financial Services, Inc.

         (y) Disclosure.  None of the information or documents  furnished to PHS
or any of its  representatives  and none of the  representations  or  warranties
contained  herein  is false or  misleading  or  omits to state a  material  fact
required to be stated therein or herein in order to make the statements  therein
or herein not misleading.

         (z) Actions and Proceedings.  There is no outstanding order,  judgment,
injunction,  award or decree of any court,  governmental  or regulatory  body or
arbitration tribunal against or involving DIS. There is no material action, suit
or claim or legal,  administrative  or arbitral  proceeding or any investigation
(whether  or not the  defense  thereof or  liabilities  in respect  thereof  are
covered by insurance)  pending or, to the best  knowledge of Seller,  threatened
against or involving DIS or any of its properties or assets.


                                        6

<PAGE>





         (aa) Brokers or Finders. No broker's or finder's fee will be payable by
DIS in connection with the transactions contemplated by this Agreement, nor will
any such fee be incurred as a result of any actions by D IS.

     5.  PHS  Representations.  As an  inducement  for DIS to  enter  into  this
Agreement  and  consummate  the  transactions  contemplated  hereby,  PHS hereby
represents and warrants to DIS and agrees as follows:

         (a) PHS acknowledges that the Shares and Warrant, and shares underlying
the Warrant,  are being acquired solely by and for PHS for investment and not as
nominees or agents for the benefit of any other  person,  and PHS has no current
intention of distributing, reselling or assigning the Shares, Warrant, and hares
underlying  the Warrant,  other than in  accordance  with the  provisions of the
Securities  Act of 1933,  as amended (the "1933 Act"),  rules under the 1933 Act
and any other applicable laws.

         (b) PHS  understands  that neither the Shares,  Warrant,  or the shares
underlying the Warrant,  have been  registered  under the 1933 Act, or under the
laws of any  jurisdiction,  and that DIS is under no  obligation  to register or
assist PHS in  registering  the Shares,  Warrant,  or the shares  underlying the
Warrant. PHS understands and agrees further that (i) the Shares, Warrant, or the
shares  underlying the Warrant,  must be held indefinitely  unless  subsequently
registered under the 1933 Act or an exemption from  registration  under the 1933
Act  covering  the sale of the  Shares,  Warrant,  or he shares  underlying  the
Warrant, is available. PHS understands that legends stating that the Shares have
not been  registered  under the 1933 Act and  setting  out or  referring  to the
restrictions  on  transferability  and sale of the  Shares and  Warrant,  or the
shares underlying the Warrant,  will be placed on the  certificates,  evidencing
the Shares, and Warrant, or the shares underlying the Warrant.

         (c) PHS is aware that (i)  investment  in the Shares,  Warrant,  or the
shares  underlying  the  Warrant,  involves a possible  degree of risk,  lack of
liquidity and substantial  restrictions on transferability of interest, and (ii)
no federal  or state  agency has made any  finding  or  determination  as to the
fairness for investment in, nor has made any  recommendation  or endorsement of,
the Shares, Warrant, or the shares underlying the Warrant.

         (d) PHS has  sufficient  financial  resources  available to support the
loss of all or a portion of PHS's  investment in the Shares and Warrant,  has no
need for  liquidity in the  investment  in the Shares and Warrant and is able to
bear the economic risk of the investment.

         (e) PHS is  sophisticated  and  experienced in financial,  business and
investment  matters,  is in the same business as DIS, is aware of DIS' financial
condition  and  business  affairs,  and,  as a result,  PHS is in a position  to
evaluate the  merits-and  risks of an investment in the Shares and Warrant,  the
restrictions on transferability and the tax consequences of the investment.

         (f) PHS has been  furnished  any and all  materials  PHS has  requested
relating to DIS, the Shares,  Warrant,  or the shares underlying the Warrant, or
the purchase and sale of the Shares and Warrant hereby and PHS has been afforded
the  opportunity  to ask questions of DIS concerning the terms and conditions of
the purchase and sale hereby and to obtain any additional  information necessary
to verify the accuracy of any  representations or information  appearing in this
Agreement.  PHS,  either  alone or with  PHS's  professional  advisors,  has the
capacity to protect PHS's interests in connection with this transaction.

         (g) PHS has relied  solely  upon the advice of its  advisors  (if any),
advice of its tax experts and independent  investigations made by PHS and/or its
representative(s)  in deciding to invest in the Shares and Warrant,  and no oral
or other representations other than those explicitly in this Agreement have been
made to PHS regarding the Shares and Warrant.


                                        7

<PAGE>





         (h) PHS is a duly organized and validly existing  corporation under the
laws of the State of New York and has the power and lawful  authority to own its
properties and to transact the business in which it is currently engaged. PHS is
not,  and is not  required to be,  qualified  to transact  business as a foreign
corporation in any jurisdiction where it is not so qualified.

         (i) PHS has full power to enter  into this  Agreement  and the  related
agreements  which are exhibits to this Agreement and to carry out its respective
obligations  hereunder  and  thereunder.  The  execution  and  delivery  of this
Agreement and the related  agreements and the  consummation of the  transactions
contemplated hereby and thereby have been or will be duly and validly authorized
by PHS's board of  directors.  No other acts or  proceedings  on the part Of PHS
will be necessary to authorize this  Agreement or the related  agreements or the
transactions contemplated hereby and thereby. This Agreement constitutes a valid
and  legally  binding  obligation  of PHS  and  is  enforceable  against  PHS in
accordance with its terms.

         (j)  No  Breach.  The  execution,  delivery  and  performance  of  this
Agreement and the related  agreements  which are exhibits to this  Agreement and
the consummation of the transactions contemplated hereby will not:

              (i) violate any provision of the articles of incorporation of PHS;

              (ii)violate any order,  judgment,  injunction,  award or decree of
any court,  arbitrator or governmental  or regulatory  body against,  or binding
upon PHS, or upon the properties or business of PHS;

 (iii) violate any statute,law or regulation of any jurisdiction applicable
      to the transactions contemplated herein;

              (iv)conflict with, result in a breach of the terms,  conditions or
provisions of, or constitute a default, an event of default or an event creating
rights  of  acceleration,   termination,   or  cancellation   under,  any  note,
instrument, agreement, mortgage, lease, license, permit, judgment, order, award,
decree or other authorization, right, restriction or obligation to which the PHS
is a par y or any of its properties is subject or by which any of them are bound
or any statute, other law or regulatory provision affecting any of them; or

              (v) requiring the approval,  consent or  authorization  of, or the
making of any declaration,  filing or registration  with, any third party or any
foreign,  federal,  state or local court,  governmental  authority or regulatory
body.

         (k) No Violation or Litigation. PHS has received no notice of any facts
which  would  lead it to believe  (i) PHS is in  material  violation  of, or has
violated, any law, regulation,  rule, writ,  injunction,  decree or order of any
court  or  any  foreign,   federal,   state,   municipal  or  other  government,
governmental  department,  commission,  board, bureau, agency or instrumentality
which will result in expense or  interfere  with the  business of PHS;  and (ii)
there is any action, suit or proceeding by any governmental agency pending or to
the best of its knowledge  threatened which question;  the legality or propriety
of this Agreement or the transactions  contemplated hereby. PHS is in compliance
with all laws, regulations, rules, writs, injunctions,  decrees or orders of any
court  or  any  foreign,   federal,   state,   municipal  or  other  government,
governmental  department  commission,  board, bureau,  agency or instrumentality
which govern its business.

         (l) Actions and Proceedings.  There is no outstanding order,  judgment,
injunction,  award or decree of any court,  governmental  or regulatory  body or
arbitration tribunal against or involving PHS.

         (m) Hames  Guaranty.  PHS will use its best efforts to promptly  remove
Norman  Hames from all personal  guarantees  which he has given in behalf of DIS
obligations.


                                        8

<PAGE>





         (n) Brokers or Finders.  No broker's or finder's fee will be payable by
PHS in connection with the transactions contemplated by this Agreement, nor will
any such fee be incurred as a result of any actions by PHS.

         (o) Disclosure.  None of the information or documents  furnished to DIS
or any of its  representatives  and none of the  representations  or  warranties
contained  herein  is false or  misleading  or  omits to state a  material  fact
required to be stated therein or herein in order to make the statements  therein
or herein not misleading.

     6.  Post Execution Obligations.

         (a) Further  Assurances.  The parties shall execute such  documents and
other  papers and take such  further  actions as may be  reasonably  required or
desirable to carry out the provisions  hereof and the transactions  contemplated
hereby. PHS shall be bound by and shall implement the related agreements.

         (b)  Survival  of  Representations  and  Warranties  of  Parties.   All
representations  and  warranties  of DIS and PHS made herein  shall  survive the
execution and delivery hereof for one (1) year following the date hereof.

         (c)  Registration Rights.

              (i)  "Piggyback  Registration".  If DIS at any  time  proposes  to
register any of its common stock,  $.01 par value under the 1933 Act (other than
in connection with a merger or pursuant to Form S-8 or other  comparable  form),
DIS shall request that the managing  underwriter  (if any) of such  underwritten
offering  include  up to  1,000,000  shares  of  the  Shares  (the  "Registrable
Securities")  in such  registration  and DIS shall use its best efforts to cause
such managing  underwriter to grant such request so long as it doesn't  diminish
the  proceeds  to be  received  by DIS  from  such  offering.  If such  managing
underwriter  agrees to include the  Registrable  Securities in the  underwritten
offering,  DIS  shall at such  time  give  prompt  written  notice to PHS of its
intention  to effect such  registration  and of PHS' right  under such  proposed
registration,  and upon the request of 'HS  delivered to DIS within  twenty (20)
days after  giving such notice  (which  request  shall  specify the  Registrable
Securities  intended  to be  disposed  of by PHS  and  the  intended  method  of
Disposition thereof),  DIS shall include such Registrable Securities held by PHS
requested to be included in such registration; provided, however, that:

                  A. If, at any time after  giving such  written  notice of DIS'
intention  to  register  any of the  Registrable  Securities  and  prior  to the
effective  date of the  registration  statement  filed in  connection  with such
registration, DIS shall determine for any reason not to register or to delay the
registration of such Registrable Securities,  at its sole election, DIS may give
written notice of such  determination  to PHS and thereupon shall be relieved of
its  obligation  to register any  Registrable  Securities  issued or issuable in
connection  with  such   registration  (but  not  from  its  obligation  to  pay
registration  expenses in  connection  therewith or to register the  Registrable
Securities in a subsequent registration);  and in the case of a determination to
delay a  registration  shall  thereupon be permitted  to delay  registering  any
Registrable Securities for the same period as the delay in respect of securities
being registered for DIS' own account.

                  B. If the managing  underwriter in such underwritten  offering
shall advise DIS that it declines to include a portion or all of the Registrable
Securities requested by PHS to be included in the registration  statement,  then
distribution of all or a specified  portion of the Registrable  Securities shall
be excluded from such registration  statement.  In such event DIS shall give PHS
prompt  notice  of the  number  of  Registrable  Securities  excluded  from such
registration at the request of the managing underwriter. No such exclusion shall
reduce the  securities  being  offered by the  Company for its own account to be
included in such registration statement.


                                        9

<PAGE>





              (ii)Option to Include  Registrable  Securities  in Offering.  PHS,
subject to the provisions of Section 6(c),  shall have the option to include the
Registrable  Securities in DIS' underwritten offering. DIS shall not be required
to include any of the Registrable Securities in an underwritten offering of DIS'
securities  unless PHS  accepts  the terms of the  underwriting  as agreed  upon
between DIS and the  underwriters  selected by it (provided such terms are usual
and customary for selling stockholders) and PHS agrees to execute and/or deliver
such  documents in  connection  with stock  registration  as DIS or the managing
underwriter may reasonably request.

              (iiiCooperation  with  DIS.  PHS  will  cooperate  with DIS in all
respects in connection with the registration rights, including, timely supplying
all  information  reasonably  requested by DIS and  executing  and returning all
documents  reasonably  requested in connection with the registration and sale of
the Registrable Securities.

         (d) Registration Procedures.  If and whenever DIS is required by any of
the  provisions  of this  Agreement  to use  its  best  efforts  to  effect  the
registration of any of the Registrable  Securities under the 1933 Act, DIS shall
(except as otherwise provided in this Agreement), as expeditiously as possible:

              (i) prepare and file with the Securities  and Exchange  Commission
(the  "Commission")  a registration  statement and shall use its best efforts to
cause such registration statement to become effective and remain effective until
all the Registrable Securities are sold or become capable of being publicly sold
without registration under the 1933 Act.

              (ii)prepare  and file  with the  Commission  such  amendments  and
supplements to such registration statement and the prospectus used in connection
therewith as may be necessary to keep such registration  statement effective and
to comply with the  provisions of the 1933 Act with respect to the sale or other
disposition of all securities  covered by such registration  statement  whenever
DIS shall desire to sell or otherwise dispose of the same (including  prospectus
supplements  with respect to sales of securities from time to time in connection
with a registration statement pursuant to Rule 415 of the Commission);

              (iiifurnish to PHS such numbers of copies of a summary  prospectus
or other  prospectus,  including a  preliminary  prospectus  or any amendment or
supplement to any prospectus,  in conformity  with the  requirements of the 1933
Act,  and  such  other  documents,  as PHS may  reasonably  request  in order to
facilitate the public sale or other disposition of the Registrable Securities;

              (iv)use its best  efforts to register  and qualify the  securities
covered by such  registration  statement under such other securities or blue sky
laws of such jurisdictions as the underwriter shall reasonably  request,  and do
any and all other acts and things which may be reasonably necessary or advisable
to  enable  PHS to  consummate  the  public  sale or other  disposition  in such
jurisdictions  of the securities owned by PHS, except that DIS shall not for any
such purpose be required to qualify to do business as a foreign  corporation  in
any  jurisdiction  wherein it is not so qualified or to file therein any general
consent to service of process;

              (v) use  its  best  efforts  to list  such  securities  on (x) any
securities  exchange  on which  any  securities  of DIS is then  listed,  if the
listing of such  securities is then  permitted  under the rules of such exchange
and/or (y) Nasdaq, if the securities are then traded or quoted thereon,  subject
to applicable Nasdaq rules;

              (vi)enter into and perform its  obligations  under an underwriting
agreement,  if the offering is an underwritten  offering, in usual and customary
form,  with  the  managing  underwriter  or  underwriters  of such  underwritten
offering;


                                       10

<PAGE>





              (viinotify  PHS at any time  when a  prospectus  relating  thereto
covered by such  registration  statement is required to be  delivered  under the
1933 Act, of the happening of any event of which it has knowledge as a result of
which the prospectus included in such registration  statement, as then in effect
includes  an untrue  statement  of a material  fact or omits to state a material
fact required to be stated therein or necessary to make the  statements  therein
not misleading in the light of the circumstances then existing; and

              (viitake such other  actions as shall be  reasonably  requested by
PHS to  facilitate  the  registration  and sale of the  Registrable  Securities;
provided,  however,  that DIS shall not be  obligated  to take any  actions  not
specifically  required  elsewhere  herein which in the  aggregate  would cost in
excess of $5,000.

         (e)  Expenses.  All  expenses  incurred  in  any  registration  of  the
Registrable  Securities  under this Agreement  shall be paid by DIS,  including,
without  limitation,  printing  expenses,  fees and disbursements of counsel for
DIS, expenses of any audits to which DIS shall agree or which shall be necessary
to  comply  with  governmental  I  requirements  in  connection  with  any  such
registration,  all registration  and filing fees for the Registrable  Securities
under  federal and State  securities  laws,  and expenses of complying  with the
securities or blue sky laws of any  jurisdictions  pursuant to Section 6(d)(iv);
provided,  however, DIS shall not be liable for (i) any discounts or commissions
to any  underwriter;  (ii) any stock  transfer  taxes  incurred  with respect to
Registrable  Securities  sold in the  Offering or (iii) the fees and expenses of
counsel  for PHS,  provided  that DIS will pay the  costs  and  expenses  of DIS
counsel  when  the DIS  counsel  is  representing  any or all  selling  security
holders.

         (f)  Indemnification.  In the  event  any  Registrable  Securities  are
included in a registration statement pursuant to this Agreement:

              (i) Indemnity.  Without limitation of any other indemnity provided
to PHS,  either in  connection  with the  Offering or  otherwise,  to the extent
permitted by law, DIS shall  indemnify and hold  harmless  PHS, the  affiliates,
officers, directors and partners of PHS, any underwriter (as defined in the 1933
Act) for PHS, and each person,  if any, who controls PHS or underwriter  (within
the  meaning  of the  1933  Act or the  Securities  Exchange  Act of  1934  (the
"Exchange Act"),  against any losses,  claims,  damages or liabilities (joint or
several) to which they may become  subject  under the 1933 Act, the Exchange Act
or other  federal  or state  law,  insofar as such  losses,  claims,  damages or
liabilities  (or actions in respect  thereof) arise out of or are based upon any
of  the  following   statements,   omissions  or  violations   (collectively   a
"Violation"): (1) any untrue statement or alleged untrue statement of a material
fact  contained  in  any  registration   statement   including  any  preliminary
prospectus  or  final  prospectus   contained   therein  or  any  amendments  or
supplements  thereto,  (2) the omission or alleged  omission to state  therein a
material fact required to be stated therein, or necessary to make the statements
therein,  in  light  of the  circumstances  under  which  they  were  made,  not
misleading,  (3) any violation or alleged  violation by DIS of the 1933 Act, the
Exchange Act, or any state securities law or any rule or regulation  promulgated
under the 1933 Act, the Exchange  Act or any state  securities  law, and in each
case,  the Company  shall  reimburse  PHS, and each such  affiliate,  officer or
director or partner,  underwriter or  controlling  person for any legal or other
expenses incurred by them in connection with investigating or defending any such
loss, claim, damage, liability or action; provided,  however, that DIS shall not
be liable to PHS or any other  party in any such case for any such loss,  claim,
damage, liability or action to the extent that it arises out of or is based upon
a  Violation  which  occurs in  reliance  upon and in  conformity  with  written
information  furnished expressly for use in connection with such registration by
PHS or any  underwriter  or any other officer,  director or  controlling  person
thereof.

              (ii)Indemnity.  PHS shall  indemnify  and hold  harmless  DIS, its
affiliates, its counsel, officers, directors,  shareholders and representatives,
any  underwriter  (as  defined  in the 1933 Act) and each  person,  if any,  who
controls  DIS or the  underwriter  (within  the  meaning  of the 1933 Act or the
Exchange Act),  against any losses,  claims,  damages,  or liabilities (joint or
several) to which they may become  subject  under the 1933 Act, the Exchange Act
or any  state  securities  law,  and  PHS  shall  reimburse  DIS and  each  such
affiliate, counsel, Officer, director, shareholder, partner, or representative,

                                       11

<PAGE>





underwriter  or controlling  person for any legal or other expenses  incurred by
them in connection with investigating or defending any such loss, claim, damage,
liability or action;  insofar as such losses, claims, damages or liabilities (or
actions and respect  thereof)  arise out of or are based upon any  statements or
information  provided in writing by PHS to DIS in  connection  with the offer or
sale  of   Registrable   Securities.   Notwithstanding   the   above,   the  PHS
indemnification  shall be limited to an amount  equal to the  proceeds to PHS of
the Registrable Securities sold for the account of PHS.

              (iii  Notice;  Right  to  Defend.  Promptly  after  receipt  by an
indemnified  party under this Section 6(f) of notice of the  commencement of any
action (including any governmental  action),  such indemnified party shall, if a
claim in respect thereof is to be made against any indemnifying party under this
Section  6(f),  deliver  to the  indemnifying  party  a  written  notice  of the
commencement  thereof  and the  indemnifying  party  shall  have  the  right  to
participate in and if the  indemnifying  party agrees in writing that it will be
responsible for any costs or expenses, judgments, damages and losses incurred by
the  indemnified  party  with  respect  to such  claim,  jointly  with any other
indemnifying party similarly noticed, to assume the defense thereof with counsel
mutually  satisfactory to the parties;  provided,  however,  that an indemnified
party shall have the right to retain its own counsel, with the fees and expenses
to be  paid by the  indemnifying  party,  if the  indemnified  party  reasonably
believes that  representation  of such indemnified party by the counsel retained
by the  indemnifying  party would be  inappropriate  due to actual or  potential
differing   interests  between  such  indemnified  party  and  any  other  party
represented by such counsel in such  proceeding.  The failure to deliver written
notice to the indemnifying party within a reasonable time of the commencement of
any such action shall  relieve such  indemnifying  party of any liability to the
indemnified  party  under this  Agreement  only if and to the  extent  that such
failure is prejudicial to its ability to defend such action, and the omission so
to deliver written notice to the  indemnifying  party will not relieve it of any
liability that it may have to any  indemnified  party  otherwise than under this
Agreement.

              (iv)Contribution.  If the  indemnification  provided  for in  this
Agreement is held by a court of competent  jurisdiction  to be unavailable to an
indemnified party with respect to any loss, liability,  claim, damage or expense
referred to therein,  then the indemnifying  party, in lieu of indemnifying such
indemnified party thereunder,  shall contribute to the amount paid or payable by
such indemnified f arty as a result of such loss,  liability,  claim,  damage or
expense in such  proportion as is  appropriate  to reflect the relative fault of
the indemnifying party on the one hand and of the indemnified party on the other
hand in connection with the statements or omissions which resulted in such loss,
liability,  claim,  damage or  expense as well as any other  relevant  equitable
consideration.  The relevant fault of the indemnifying party and the indemnified
party shall be  determined  by  reference  to, among other  things,  whether the
untrue or alleged untrue statement of a material fact or the omission to state a
material fact relates to information  supplied by the  indemnifying  party or by
the indemnified  party and the parties'  relative intent,  knowledge,  access to
information  and  opportunity  to correct or prevent such statement or omission.
Notwithstanding  the foregoing,  the amount PHS shall be obligated to contribute
pursuant to the Agreement shall be limited to an amount equal to the proceeds to
PHS Of the Registrable  Securities sold pursuant to the  registration  statement
which gives rise to such obligation to contribute  (less the aggregate amount of
any  damages  which PHS has  otherwise  been  required to pay in respect of such
loss,  claim,  damage,  liability or action or any  substantially  similar loss,
claim,  damage,  liability or action  arising from the sale of such  Registrable
Securities).

              (v) Survival of Indemnity.  The  indemnification  provided by this
Agreement shall be a continuing right to  indemnification  and shall survive the
registration  and sale of any  Registrable  Securities by any person entitled to
indemnification hereunder and the expiration or termination of this Agreement.

         (g) Assignment of Registration  Rights. The registration  rights of PHS
under this  Agreement  may not be assigned  without the written prior consent of
DIS.



                                       12

<PAGE>





     7.  Miscellaneous.

         (a) Entire  Agreement.  This Agreement  (including the Exhibits hereto)
represent the entire  understanding and agreement among the parties with respect
to  the  subject   matter  hereof,   and  supersedes  all  other   negotiations,
understandings and representations (if any) made by and among such parties.

         (b)  Amendments.  The  provisions of this Agreement may not be amended,
supplemented,  waived or  changed  orally,  but only by a writing  signed by the
party  as to whom  enforcement  of any such  amendment,  supplement,  waiver  or
modification is sought and making specific reference to this Agreement.

         (c) Binding Effect.  All of the terms and provisions of this Agreement,
whether so expressed or not,  shall be binding upon,  inure,  to the benefit of,
and  be  enforceable  by  the  parties  and  their  respective   administrators,
executors, legal representatives, heirs, successors and permitted assigns.

         (d)  Headings.  The  headings  contained  in  this  Agreement  are  for
convenience of reference  only, are not to be considered a part hereof and shall
not limit or otherwise affect in any way the meaning or  interpretation  of this
Agreement.

         (e) Notices. All notices,  requests,  consents and other communications
required or permitted under this Agreement shall be in writing  (including telex
and telefax  communication)  and shall be (as elected by the person  giving such
notice) hand  delivered by messenger or courier  service,  telecommunicated,  or
mailed  (airmail if  international)  by  registered  or certified  mail (postage
prepaid), return receipt requested, addressed to:

         To PHS:

         Primedex Health Systems, Inc.
         1516 Cotner Avenue
         Los Angeles, California 90025
         Attention: Steven Hirschtick, Senior Vice President
         Fax No.: (310) 478-5310

         To DIS:

         Diagnostic Imaging Services, Inc.
         5730 Uplander Way, Suite 101
         Culver City, CA 90230
         AttentionNorman Hames, President
         Fax No.: (310) 670-5644

or to such other address as any party may designate by notice complying with the
terms of this  Section.  Each such notice shall be deemed  delivered  (a) on the
date delivered if by personal  delivery;  (b) on the date of  transmission  with
confirmed answer back if by telex or telefax; and (c) on the date upon which the
return  receipt is signed or delivery is refused or the notice is  designated by
the postal authorities as not deliverable, as the case may be, if mailed.

         (f)  Severability.  If any  provision  of this  Agreement  or any other
agreement  entered into pursuant hereto is contrary to,  prohibited by or deemed
invalid under applicable law or regulation, such provision shall be inapplicable
and deemed  omitted to the extent so contrary,  prohibited  or invalid,  but the
remainder hereof shall not be invalidated  thereby and shall be given full force
and  effect  so far as  possible.  If any  provision  of this  Agreement  may be
construed in two or more ways,  one of which would render the provision  invalid
or  otherwise  voidable or  unenforceable  and another of which would render the
provision  valid and  enforceable,  such provision  shall have the meaning which
renders it valid and enforceable.


                                       13

<PAGE>





         (g)  Waivers.  The failure or delay of any party at any time to require
performance by another party of any provision of this Agreement,  even if known,
shall  not  affect  the  right of such  party  to  require  performance  of that
provision or to exercise any right, power or remedy hereunder. Any waiver by any
party of any breach of any provision of this  Agreement  should not be construed
as a waiver of any continuing or succeeding  breach of such provision,  a waiver
of the provision  itself,  or a waiver of any right,  power or remedy under this
Agreement.  No notice to or demand or any party in any case  shall,  of  itself,
entitle such party to any other or further  notice or demand in similar or other
circumstances.

         (h) Governing Law. This Agreement and all transactions  contemplated by
this  Agreement  shall be governed by, and  construed and enforced in accordance
with, the internal laws of the State of California  without regard to principles
of conflicts of laws.

         (i)  Preparation of Agreement.  This  Agreement  shall not be construed
more  strongly  against  any  party  regardless  of who is  responsible  for its
preparation. The parties acknowledge each contributed and is equally responsible
for its preparation.

         (j) Execution in Counterparts. This Agreement may be executed in one or
more  counterparts,  each of which shall be deemed an original agreement but all
of which shall be  considered  one and the same  instrument,  and shall become a
binding  agreement when one or more counterparts have been signed by each of the
parties.

         (k) Parties in Interest. Nothing in this Agreement,  whether express or
implied, is intended to confer any right, or remedies under or by reason of this
Agreement  on any  persons  other  than the  parties  to t and their  respective
successors and assigns, nor is anything in this Agreement intended to relieve or
discharge the  obligation or liability of any third persons to any Party to this
Agreement,  nor  shall  any  provision  give  any  third  persons  any  right of
subrogation or action over against any party to this Agreement.

     IN WITNESS WHEREOF,  the parties of this Agreement have duly executed it on
the 22nd day of March, 1996.


                                       PRIMEDEX HEALTH SYSTEMS, INC.


                                       By:  /s/ Herm Rosenman
                            Herm Rosenman, President


                        DIAGNOSTIC IMAGING SERVICES, INC.



                                       By: /s/ Norman Hames
                             Norman Hames, President




                             STOCKHOLDERS AGREEMENT

                                    EX- 10.27

     THIS STOCKHOLDERS AGREEMENT (this "Agreement") is made as March 22, 1996 by
and among  Diagnostic  Imaging  Services,  Inc.,  a  Delaware  corporation  (the
"Company "), Primedex Health Systems, Inc., a New York corporation (" PHS ") and
Norman Hames, an individual ("NH") (collectively, the "Shareholders").

     WHEREAS, PHS and NH are holders of shares of common stock ("Common Stock")
 of the Company;

     WHEREAS,  PHS and NH desire to secure the  election of the  nominees of PHS
and NH to the Board of  Directors  of the  Company as well as assure the Company
that its transactions will always be in the best interest of the Company; and

     WHEREAS,   PHS  has   entered   into  a   Securities   Purchase   Agreement
("Agreement"),  dated as of March 22,  1996,  with tie Company,  and PHS,  under
which PHS will invest a  substantial  amount in the Company;  and a condition of
closing the Securities  Purchase  Agreement is the execution and delivery by the
Shareholders and the Company of this Agreement.

     NOW,  THEREFORE,  in  consideration  of the  foregoing and the promises and
covenants contained herein, the sufficiency of which is hereby acknowledged, the
parties agree as follows:

     1.  VOTING AGREEMENT REGARDING SHARES.

         1.1 Agreement to Vote. Each Shareholder  agrees on behalf of himself or
itself and any of the  following  persons to whom the  Shareholder  may transfer
shares of Common Stock owned or controlled by such Shareholder ("Shares"): (a) a
member  of  his  or  her  immediate  family;  (b) a  trust  established  by  the
Shareholder for the benefit of the Shareholder or his or her immediate family by
gift or inheritance; or (c) a person that directly or indirectly, through one or
more  intermediaries,  controls or is controlled  by, or is under common control
with, the Shareholder (individually,  an "Affiliated Transferee") to hold all of
the  Shares  now held or  subsequently  acquired  registered  in his or its name
subject to, and to vote the Shares in accordance  with,  the  provisions of this
Agreement.

         1.2 Board of Directors.  Each Shareholder  shall vote his or its Shares
(or shall  consent  pursuant  to an action by written  consent of the  Company's
shareholders)  so as to elect a four person board of which two nominees shall be
designated  by  NH  and  two  nominees  by  PHS,  their  respective  successors,
affiliates,  or  assigns  shall  also be so bound;  and,  in the event  that any
designated  director  shall not  complete his term of office as a director and a
successor  director is to be  elected,  each  Shareholder  shall vote his or its
Shares to elect as such  successor  director a nominee  designated  by the party
whose appointed  director's term is uncompleted,  its successors,  affiliates or
assigns.

         1.3 Removal. On all matters relating to the removal of directors of the
Company,  each  Shareholder  shall  vote his or its  Shares  (or  shall  consent
pursuant  to an action by written  consent  of the  Company's  shareholders)  to
ensure that no director  of the Company may be removed  from the Board,  with or
without  cause,  except upon the prior written  authorization  or request of the
appropriate appointing Shareholder.

         1.4 Conflicting  Charter or By-Law  Provisions.  Each Shareholder shall
vote his or her  Shares  (or shall  consent  pursuant  to an  action by  written
consent  of the  Company's  shareholders),  and  shall  take  all  other  action
necessary,  to ensure that the Certificate of  incorporation  and By-Laws of the
Company  facilitate  and do not at any time conflict with the provisions of this
Agreement.




<PAGE>






         1.5 Approval of Transactions.  Each  Shareholder  shall vote his or its
Shares  (or  shall  consent  pursuant  to an action by  written  consent  of the
Company's  shareholders)  on  any  issue  put  to  the  vote  of  the  Company's
shareholders  in the  manner  which  the  Board  of  Directors  of  the  Company
recommends.

         1.6 Rights  Assignable.  NH and PHS may assign their respective  rights
and benefits under this  Agreement to any person that acquires  shares of Common
Stock from them.

         1.7 Certain Types of Issue. So long as NH and Howard Berger, M.D. shall
serve as directors of the Company, neither shall take nor recommend any material
action involving the Company which is not approved by the other.

     2.  CONDITION PRECEDENT; TERMINATION.

         2.1 Condition Precedent to Obligations. The obligation of each party to
this Agreement to perform its obligations  under this Agreement shall be subject
to the  consummation  and  performance of the  transactions  contemplated by the
Agreement.

         2.2  Termination  of Rights  regarding  the Company.  The rights of the
Shareholders  under this Agreement shall terminate upon the earliest to occur of
(i) with respect any individual Shareholder,  the date on which such Shareholder
or any  Affiliated  Transferee no longer owns more than five percent (5%) of the
outstanding Shares, or (ii) the occurrence of the merger or consolidation of the
Company into, or the sale of all or substantially all of the Company's assets to
another entity.

     3.  LEGEND.

         3.1  Legend.   Each  certificate   representing  Shares  owned  by  any
Shareholder or transferred to any Affiliated  Transferee  shall be endorsed with
the following legend:

         "THE  VOTING OF THE  SECURITIES  REPRESENTED  BY THIS  CERTIFICATE  ARE
         SUBJECT TO THE TERMS AND CONDITIONS OF A STOCKHOLDERS  AGREEMENT BY AND
         AMONG CERTAIN HOLDERS OF COMMON STOCK OF THE CORPORATION.  BY ACCEPTING
         ANY INTEREST IN SUCH  SECURITIES  THE PERSON  ACCEPTING  SUCH  INTEREST
         SHALL BE DEEMED TO AND SHALL BECOME BOUND BY ALL THE PROVISIONS OF SUCH
         STOCKHOLDERS' AGREEMENT.  COPIES OF SUCH STOCKHOLDERS' AGREEMENT MAY BE
         OBTAINED UPON WRITTEN REQUEST OF THE SECRETARY OF THE CORPORATION."

         3.2 Legend  Removal.  The legend  referred  to in Section  3.1 shall be
removed  (i) from  every  certificate  upon  termination  of this  Agreement  in
accordance  with the provisions of Section 2 above or (ii) from any  certificate
representing  Shares owned by any  Shareholder  or transferred to any Affiliated
Transferee  that are  transferred  to a person  other than a  signatory  to this
Agreement.

         3.3 Cooperation with Filings.  Each  Shareholder  shall cooperate fully
with the Company with regard to any filings  required  under the  Securities and
Exchange Act of 1934, as amended,  or any other federal or state securities law,
rule  or  regulation,  relative  to  such  Shareholder's  participation  in this
Agreement,  which  cooperation  shall include,  without  limitation,  the prompt
response to written requests for information.  Each Shareholder hereby agrees to
indemnify  and  hold  harmless  the  Company  and  their  respective   officers,
directors,  employees,  shareholders  and agents  from and  against  any and all
losses,  damages, costs and expenses (including attorney's fees and other costs)
and liabilities due or arising out of information such Shareholder shall provide
to the  Company  pursuant  to  this  Section  3.3 but  only if such  information
included an untrue  statement of a material  fact or omitted to state a material
fact  necessary  in order to make the  statements  therein,  in the light of the
circumstances under which they were made, not misleading.



                                        2

<PAGE>





     4.  MISCELLANEOUS.

         4.1  Representations.  Each of the parties hereto  represents that this
Agreement  has been duly  authorized,  executed and  delivered by such party and
constitutes a legal,  valid and binding  obligation  of such party,  enforceable
against it in accordance with the terms of this Agreement.

         4.2 Specific  Performance.  The parties  hereto agree that  irreparable
damage  would  occur  in the  event  any  provision  of this  Agreement  was not
performed in  accordance  with the terms  hereof,  that money  damages  shall be
inadequate  for such breach,  and that the parties shall be entitled to specific
performance  of the terms  hereof,  in addition to any other remedy at law or in
equity.

         4.3 Amendments  and Waivers.  Any term of this Agreement may be amended
and the  observance  of any such term may be waived  (either  generally  or in a
particular  instance and either  retroactively or  prospectively)  only with the
written consent of the parties hereto.

         4.4 Notices.  All notice and other  communications  provided for herein
shall be in  writing  and  shall be  delivered  by hand,  telecopied  or sent by
overnight,  certified or registered  mail,  return  receipt  requested,  postage
prepaid,  addressed  in the  manner  set  forth on the  signature  pages of this
Agreement  (or to such  other  address  for a party as shall be  specified  in a
notice given in  accordance  with this Section  4.4).  All such notices shall be
conclusively  deemed  to be  received  and shall be  effective,  if sent by hand
delivery or  telecopied,  upon  receipt,  or if sent by  registered or certified
mail, on the fifth day after the day on which such notice is mailed.

         4.5  Benefit;  Successors  and Assigns.  Except as  otherwise  provided
herein,  this Agreement  shall be binding upon and shall inure to the benefit of
the  parties  hereto and their  respective  successors  and  permitted  assigns.
Nothing in this Agreement either express or implied is intended to confer on any
person  other than the  parties  thereto  and their  respective  successors  and
permitted  assigns,  any rights,  remedies or obligations  under or by reason of
this Agreement.

         4.6  Miscellaneous.  This Agreement sets forth the entire agreement and
understanding  among the parties hereto, and supersedes all prior agreements and
understandings  relating to the subject matter hereof. All  representations  and
warranties  contained  herein shall  survive the  execution and delivery of this
Agreement,  regardless of any investigation  made by any party hereto or on such
party's  behalf.  The headings in this  Agreement  are for purposes of reference
only and shall not limit or otherwise affect the meaning hereof.  This Agreement
may be executed in any number of counterparts,  each of which shall be deemed to
be an original, but all of which together shall constitute one instrument.

         4.7  Severability.  If any provisions of this Agreement shall be deemed
invalid  or  unenforceable  pursuant  to a final  determination  of any court of
competent  jurisdiction,  or as a result  of  future  legislative  action,  such
determination  or action shall be  construed  so as not to affect the  validity,
enforceability  or  effect  the other  provisions  of this  Agreement,  and this
Agreement shall be construed as if the invalid or  unenforceable  provision were
not contained  herein,  and the rights and  obligations  of the parties shall be
construed and enforced accordingly.

         4.8 Amendments and Waivers.  Neither this Agreement nor any term hereof
may be  amended,  waived,  discharged  or  terminated  other  than by a  written
instrument signed by the Shareholders.

         4.9  Counterparts.  This  Agreement  may be  executed  in any number of
counterparts, all of which together shall constitute one instrument, and each of
which may be executed by less than all of the parties to this Agreement.

         4.10 Governing Law. The agreement  shall be governed by an construed in
accordance with the laws of the state of California without regard to the choice
of law provisions thereof.



                                        3

<PAGE>





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


                        DIAGNOSTIC IMAGING SERVICES, INC.


                                       By: /s/ Norman Hames
                             Norman Hames, President


                                       Address:  5730 Uplander Way
                                                       Suite 101
                                                       Culver City, CA 90230

SHAREHOLDERS


By: /s/ Norman Hames
     Norman Hames

Address: 5730 Uplander Way, Suite 100
         Culver City, CA 90230


PRIMEDEX HEALTH SYSTEMS, INC.


By: /s/ Herman Rosenman
     Herman Rosenman, President
     Norman Hames

Address: 1516 Cotner Avenue
         Los Angeles, CA 90025




14380GAZ.JGM

                                        4



                          SECURITIES PURCHASE AGREEMENT

                                    EX- 10.28

     This Securities Purchase Agreement  ("Agreement") is entered into as of the
18th day of June, 1996, by and between Primedex Health Systems, Inc., a New York
corporation ("Buyer"), and Norman R.
Hames ("Seller"), with reference to the following facts:

                                 R E C I T A L S

     A.  Pursuant to the terms of that certain  Securities  Purchase  Agreement,
dated as of March 22, 1996, between Buyer and Diagnostic Imaging Services, Inc.,
a Delaware  corporation  ("DIS"),  Buyer owns  certain  shares of the issued and
outstanding common stock, par value $.01 per share (the "DIS Common Stock"),  of
DIS and a warrant to purchase additional shares of DIS Common Stock.

     B.  Seller  owns a total of  2,448,862  shares  of DIS  Common  Stock  (the
"Shares")  and warrants to purchase an additional  507,737  shares of DIS Common
Stock (the  "Warrants").  The Warrants ire  evidenced by the Warrant  Agreements
identified in Exhibit A attached hereto (the "Warrant Agreements").  The Shares,
the Warrants and the shares of DIS Common Stock  issuable  upon  exercise of the
'Warrants   are   sometimes   hereinafter   collectively   referred  to  as  the
"Securities."

     C. Buyer desires to purchase 'and Seller desires to shall all of the Shares
and Warrants on the terms and conditions set forth herein.

     THEREFORE,  in  consideration  of the  foregoing  premises  and the  mutual
covenants set forth herein, Buyer and Seller hereby agree as follows:

     1.  Sale of Shares and Warrants.

         (a) Sale and Purchase.  On the terms and subject to the  conditions set
forth herein, Buyer hereby agrees to purchase, and Seller hereby agrees to sell,
all of the  Shares  and the  Warrants  free  and  clear of all  liens,  charges,
encumbrances and claims of any nature.

         (b)  Purchase  Price.  As full payment for the transfer and sale of the
Shares and the Warrants to Buyer pursuant hereto, at the Closing (as hereinafter
defined) Buyer shall issue to Seller (i) Buyer's Promissory Note in the original
principal  amount of  $2,304,292,  which  Promissory  Note  shall be in the form
attached   hereto  as  Exhibit   B-1  (the   "Promissory   Note"),   (ii)  Buyer
Non-Negotiable  Note in the original  principal  amount of $144,570,  which note
shall be in the form attached hereto as Exhibit B-2 (the "Non-Negotiable Note"),
and (iii) an option to purchase 3,000,000 shares of the common stock of Buyer at
an option price of $.60 per share,  which option shall De granted  pursuant to a
Warrant to Purchase  Agreement in the form attached hereto a Exhibit C (the "PHS
Option Agreement").

     2.  Representations  by Seller.  Seller hereby  represents  and warrants to
Buyer as follows:

         (a) Seller has good and marketable title to the Shares,  free and clear
of all liens,  claims,  encumbrances and  restrictions,  legal or equitable,  of
every  kind,  other  than:  (i)  restrictions  on  transferability   imposed  by
applicable state and federal securities laws; (H) the warrants to purchase up to
104,300 of the Shares  granted by Seller to Joseph  Berman,  the Berman IRA, Roy
Doumani,  Carol  Doumani,  the Doumani  ERA,  Genesis  Investors,  Arthur Hill &
Company,  LLP, Oppenheimer as Trustee for the Linden IRA pursuant to the Warrant
Agreements  dated as of  September  2, 1994 (the "Hames  Warrants"),  a true and
complete copy of which has been provided to Buyer;  (iii) obligations to deliver
2,000  shares  per month to Berman  and his IRA and  2,000  shares  per month to
Oppenheimer  for the Linden IRA for each  month  that the  outstanding  $125,000
obligations owed to each remains unpaid.  Seller has full and unrestricted legal
right,  power and authority to sell,  assign and transfer the Shares to Buyer in
accordance  with this Agreement  and,  except as described in clauses (i), (ii),
and (iii) above, the delivery of stock  certificates to Buyer in accordance with
Section 4 hereof will transfer valid title to the Shares,  free and clear of all
liens, encumbrances, claims and restrictions of every kind.



<PAGE>





         (b) The  Warrants  were duly and validly  granted and issued to Seller,
and the Warrant Agreements constitute valid and binding agreements,  enforceable
against  DIS in  accordance  with their  respective  terms.  Seller has good and
marketable  title  to  the  Warrants,  free  and  clear  of all  liens,  claims,
encumbrances  and  restrictions,  legal or equitable,  of every kind, other than
restrictions on  transferability  set forth in the Warrant Agreements or imposed
by  applicable  state and federal  securities  laws.  Subject to  obtaining  the
consent of DIS to the transfer of the Warrants to Buyer,  the  assignment of the
Warrant  Agreement to Buyer as described in Section 4 will transfer  valid title
to the  Warrants  and the  Warrant  Agreements  to Buyer,  free and clear of all
liens,  encumbrances,   claims  and  restrictions  of  every  kind,  other  than
restrictions on  transferability  set forth in the Warrant Agreements or imposed
by applicable state and federal  securities  laws.  Seller has provided true and
complete copies of each of the Warrant Agreements to Buyer.

         (c) The execution,  delivery and  performance of this Agreement and the
consummation of the  transactions  contemplated  hereby will not (i) violate any
order,  judgment,  injunction,  award or  decree  of any  court,  arbitrator  or
governmental  or regulatory  body that is binding upon Seller,  (ii) violate any
statute, law or regulation applicable to Seller with respect to the transactions
contemplated herein or (iii) conflict with, result in their breach of the terms,
conditions  or  provisions  of or  constitute a default,  an event of default or
event creating rights of  acceleration,  termination or  cancellation  under any
note, instrument, agreement, mortgage, lease or other obligation to which Seller
is a party or to which any of the  Shares or the  Warrants,  or any of  Seller's
other properties, is subject.

         (d) Seller is not aware of any material adverse change in the business,
assets,  financial  condition or  prospects of DIS that is not  disclosed in the
Annual Report on Form 10-K for the fiscal year ended December 31, 1995, as filed
by DIS with the Securities and Exchange  Commission ("SEC"), or in the Quarterly
Report on Form 10-Q for the fiscal quarter ended September 30, 1995, as filed by
DIS with the SEC.  Seller will provide true and complete copies of said 10-K and
10-Q Reports to Buyer.

         (e) Except for the  contingent  right of Seller to acquire a portion of
the outstanding preferred shares held by DVI Health Services, Inc. under certain
circumstances, the Shares and the Warrants represent all equity interests in DIS
or any of its  affiliates  held by Seller,  including  without  limitations  all
rights to acquire any such equity interest.

         (f) As a result of any act or failure  to act by  Seller,  no person or
entity has, or as a result of the  transactions  contemplated  hereby will have,
any  right,  interest  or  valid  claim  against  or upon  Buyer  or DIS for any
commission, fee or compensation as a finder, broker or in any similar capacity.

     3.  Representations  by Buyer.  Buyer  represents and warrants to Seller as
follows:

         (a) Buyer is a corporation duly organized, validly existing and in good
standing  under the laws of the  State of New York and has the power and  lawful
authority  to enter  into this  Agreement  and to  consummate  the  transactions
provided for herein.

         (b) The  execution  and  delivery  of this  Agreement  and the  related
agreements (including without limitation the Promissory Note, the Non-Negotiable
Note, and the PHS Option Agreement)  referred to herein, and the consummation of
the transactions contemplated hereby and thereby, have been or will prior to the
Closing Date be duly and validly  authorized by the board of directors of Buyer,
and no other  acts or  proceedings  on the part of Buyer  will be  necessary  to
authorize  this  Agreement  or  the  related   agreements  or  the  transactions
contemplated hereby and thereby.

         (c) The execution,  delivery and  performance of this Agreement and the
consummation of the  transactions  contemplated  hereby will not (i) violate any
provision of the  Articles of  Incorporation  of Buyer,  (ii) violate any order,
judgment,  injunction,  award or decree of any court, arbitrator or governmental
or regulatory body that is binding under Buyer,  (iii) violate any statute,  law
or regulation applicable to Buyer with respect to the transactions  contemplated
herein or (iv)  conflict  with,  result in a breach of the terms,  conditions or
provisions  of or  constitute a default,  an event of default or event  creating
rights or acceleration, termination or cancellation under, any note, instrument,
agreement,  mortgage, lease or other obligations to which Buyer is a party or to
which any of its properties is subject.


                                        2

<PAGE>





         (d) As a result of any act or  failure  to act by  Buyer,  no person or
entity has, or as a result of the  transactions  contemplated  hereby will have,
any right,  interest or valid claim  against or upon Seller for any  commission,
fee or other compensation as a finder, broker or in any similar capacity.

         (e) There have not been any material  adverse  changes in the business,
assets,  financial condition or prospects of Buyer that are not disclosed in the
Annual  Report on Form 10-K for the fiscal year ended October 31, 1995, as filed
by  Buyer  with  the  Securities  and  Exchange  Commission  ("SEC"),  or in the
Quarterly  Report on Form 10-Q for the fiscal quarter ended January 31, 1996, as
filed by Buyer with the SEC. Buyer has provided true and complete copies of said
10-K and 10-Q Reports to Seller.

     4.  Closing.  The  closing of the  transactions  provided  for herein  (the
"Closing")  shall take place at the offices of Buyer at 1516 Cotner Avenue,  Los
Angeles,  California  90025,  at 1:00 p.m. or June 25, 1996,  or such other date
agreed to by the parties (the "Closing Date"). At the Closing,  (a) Seller shall
deliver to Buyer (i) shares certificates  representing the Shares, duly endorsed
in blank or  accompanied by executed  stock  assignment  forms (in either event,
with  signatures  guaranteed),  and (ii) the  executed  originals of the Warrant
Agreements, together with an Assignment of the Warrant Agreements, substantially
in the form of Exhibit D attached  hereto,  duly executed by Seller and DIS, and
(b) Buyer shall deliver to Seller (i) a duly executed  Promissory  Note,  (ii) a
duly  executed  Non-Negotiable  Note,  and  (iii)  a duly  executed  PHS  Option
Agreement.

     5.  Additional Matters and Covenants.

         (a) Buyer  understands  and  acknowledges  that  Arthur  Hill & Co. LLP
currently  holds  16,500 of the Shares as security for its ability to exercise a
five (5) year  warrant  granted by Seller on 16,500 of the Shares.  Additionally
128,070 of the Shares  are held in pledge to secure  guarantees  given by Seller
for payment of DIS debt aggregating $250,000 plus interest. None of those Shares
can be delivered  unless and until the underlying  obligations  are satisfied or
the warrant not  exercised.  Additionally,  the 128,070 Shares may be reduced by
4,000  Shares  for  each  month  the  $250,000  obligation  is  not  discharged,
commencing July 1, 1996.

         (b) Each of the parties hereto  acknowledges that the execution of this
Agreement  and the  consummation  of the  transactions  provided for herein will
result in certain filing obligations under applicable SEC rules and regulations,
and Buyer and Seller each agrees to make all such  filings on a timely  basis in
accordance with such SEC rules and regulations.

         (c) Upon the  transfer of the Shares to Buyer  pursuant  hereto,  Buyer
agrees to be bound by the provisions of the Hames Warrants.

     6.  Securities  Representations.  In addition to the other  representations
made in Section 3 hereof,  Buyer  hereby  represents  and  warrants to Seller as
follows:

         (a) Buyer  acknowledges  that the  Securities  are and will be acquired
solely by and for the Buyer for investment and not as a nominee or agent for the
benefit of any other  person or entity,  and Buyer has no current  intention  of
distributing,  reselling  or  assigning  any of the  Securities,  other  than in
accordance  with the  provisions of the  Securities Act of 1933, as amended (the
"1933 Act"), and the rules and regulations adopted by the SEC under the 1933 Act
and any other applicable laws.

         (b) Buyer  understands that none of the Securities have been registered
under the 1933 Act and that DIS is under no  obligation  to  register  or assist
Buyer in registering any of the Securities. Buyer further understands and agrees
that the Securities must be held  indefinitely  unless  subsequently  registered
under the 1933 Act or an exemption from registration under the 1933 Act covering
any sale or any of the Securities is available.  Buyer  understands that legends
reflecting  these  restrictions  on  transferability  will be set  forth  on any
certificates evidencing the Shares or any shares of DIS Common Stock issued as a
result of the exercise of any Warrant.


                                        3

<PAGE>





         (c) Buyer is aware that (i) its investment in the Securities involves a
possible  degree of risk,  lack of  liquidity  and  substantial  restriction  on
transferability  and (ii) no  federal or state  agency  has made any  finding or
determination  as to the fairness for  investment in, or any  recommendation  or
endorsement of, any of the Securities.

         (d) Buyer has sufficient  financial  resources available to support the
loss of all or a position of Buyer's  investment in the Securities,  has no need
for liquidity  with respect to its  investment in the  Securities and is able to
bear the economic risk of the investment.

         (e) Buyer is sophisticated  and experienced in financial,  business and
investment  matters,  is in the  same  business  as DIS  and is  aware  of  DIS'
financial  condition  and  business  affairs  and,  as a  result,  Buyer is in a
position to evaluate the merits and risks of an investment in the Securities.

         (f) Buyer has relied solely upon the advice of its management personnel
and advisors and independent  investigators  made by Buyer in deciding to invest
in the  Securities,  and no oral  or  other  representations  other  than  those
explicitly set forth in this Agreement have been made to Buyer  regarding DIS or
the Securities.

     7. Further  Assurances.  At the Closing,  and from time to time thereafter,
Seller shall execute and deliver to Buyer such other documents and  instruments,
and take such other actions,  as Buyer may  reasonably  request in order to more
fully vest in Buyer and to perfect its title to the Securities.

     8.  Miscellaneous.

         (a) Notices. All notices,  requests,  consents and other communications
required  or  permitted  under this  Agreement  shall be in  writing  (including
communications  transmitted by facsimile) and shall be (as elected by the person
giving such notice) hand delivered by messenger or courier service,  transmitted
by facsimile or mailed by registered or certified mail (postage prepaid), return
receipt requested, addressed as follows:

     If to Buyer: Primedex Health Systems, Inc.
                  1516 Cotner Avenue
                  Los, Angeles, CA 90025
                  Attention: Steven R. Hirschtick, Senior Vice President
                  Fax No. (310)478-5810

     If to Seller:Norman R. Hames
                  1516 Cotner Avenue
                  Los Angeles, CA 90025
                  Fax No. (310) 478-5810

or to such  other  address or  facsimile  number as any party may  designate  by
notice  complying with the terms of this Section 8(a). Each such notice shall be
deemed delivered (a) on the date delivered by personal delivery, (b) on the date
of transmission with confirmation of transmission if by facsimile and (c) on the
date upon  which the  return  receipt  as signed or  delivery  is refused or the
notice is designated by the postal  authorities as not deliverable,  as the case
may be, if mailed.

         (b) Specific Performance. The parties hereto acknowledge that they have
bargained for the  performance of the specific duties and obligations of each of
the parties  contained in this  Agreement and that, in the event of a default by
any party  hereunder,  money damages will not adequately  compensate the injured
party.  Accordingly,  each party  hereto  agrees and  consents  to the  specific
performance  of such  party's  duties  and  obligations  hereunder  by the valid
judgment  or decree of a court of  competent  jurisdiction  in the event of such
party's  failure to perform such duties and obligations in accordance with their
terms.


                                        4

<PAGE>





         (c) Successors in Interest.  This  Agreement  shall be binding upon and
shall inure to the benefit of the successors, assigns, personal representatives,
heirs and legatees of the respective parties hereto.

         (d)  Choice  of  Law.  It is the  intention  of the  parties  that  the
substantive laws of California  shall govern the validity of the Agreement,  the
Construction of its terms and the interpretation of the rights and duties of the
parties hereunder.

         (e)  Severability.  In the event any provision hereof shall be invalid,
illegal or  unenforceable,  the  validity,  legality  or  enforceability  of the
remaining provisions shall not in any way be affected or impaired thereby.

         (f)  Integrated   Agreement.   The  foregoing  constitutes  the  entire
agreement of the parties on the subject  hereof,  and there are no agreements or
understandings  between the parties  relating to the sale of the  Securities  by
Seller to Buyer other than those set forth herein.

         (g) Counter Execution.  Separate copies of this Agreement may be signed
by the  parties  hereto,  with the same  effect as though all of the parties had
signed one copy of this Agreement.

     IN WITNESS WHEREOF,  the undersigned have executed this Securities Purchase
Agreement as of the date first above written.


                                       PRIMEDEX HEALTH SYSTEMS, INC.



                                       By:  /s/ Herm Rosenman
                            Herm Rosenman, President



                                        /s/ Norman R. Hames
                                       Norman R. Hames




                                        5

<PAGE>




                                   SIGNATURES

     Pursuant  to the  requirements  of  Section  13 or 15(d) of the  Securities
Exchange Act of 1934, the Registrant has duly caused this report to be signed on
its behalf by the undersigned, thereunto duly authorized.

[Registrant]                              PRIMEDEX HEALTH SYSTEMS, INC.


Date:  August 13, 1997                    /s/ Howard G. Berger, M.D., President
                                          -------------------------------------
                       Howard G. Berger, M.D., President,
                                      Treasurer and Principal Financial Officer



      Pursuant to the requirements of the Securities  Exchange Act of 1934, this
report  has  been  signed  below  by the  following  persons  on  behalf  of the
Registrant and in the capacities and on the dates indicated:



By  /s/  Howard G. Berger, M.D.
      Howard G. Berger, M.D.

Date: August 13, 1997



By  /s/ Jaana Shellock
      Jaana Shellock

Date: August 13, 1997



By  /s/ Norman Hames
      Norman Hames

Date: August 13, 1997






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