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;



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              (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.


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     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








         (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








              (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








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








         (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








         (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








              (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








              (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








     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








         (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








         (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








         (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








         (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








         (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








         (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









              (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








     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








     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








     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