1
                                                                    EXHIBIT 10.4
                             AGREEMENT AND AMENDMENT

         THIS AGREEMENT AND AMENDMENT (the "Agreement") is entered into as of
January 16, 1996, between MEDICAL IMAGING CENTERS OF AMERICA, INC., a California
corporation ("MICA"), MICA IMAGING, INC., an Illinois corporation, MICA CAL I
INC., a California corporation, MICA CAL II INC., a California corporation, MICA
CAL III INC., a California corporation, MICA CAL IV INC., a California
corporation, MICA CAL VII INC., a California corporation, MICA CAL X, INC., a
California corporation, MICA FLO I INC., a California corporation, MICA OR I
INC., a California corporation, MICA PACIFIC, INC., a California corporation,
and AFFILIATED IMAGING NETWORK, INC., a California corporation (collectively,
the "MICA Subsidiaries" and referred to herein, together with MICA, as the "MICA
Obligors"), and GENERAL ELECTRIC COMPANY, a New York corporation acting through
GE Medical Systems ("GE Medical").

         WHEREAS, GE Medical and MICA are parties to an Agreement, dated May 14,
1993 (the "Credit Agreement"), relating to, among other things, GE's provision
of equipment and services to MICA and the MICA Subsidiaries and pursuant to
which MICA executed and delivered to GE Medical a promissory note in the
principal amount of $7,442,616.38 (the "MICA Promissory Note"); and

         WHEREAS, GE Medical and the MICA Obligors are parties to a Security
Agreement, dated as of May 27, 1993, pursuant to which the MICA Obligors have
granted to GE Medical certain liens and security interests; and

         WHEREAS, the principal amount currently outstanding under the MICA
Promissory Note is approximately $2,700,000; and

         WHEREAS, GE Medical owns a Common Stock Purchase Warrant (the
"Warrant") currently exercisable to purchase 160,000 shares of Common Stock of
MICA ("Common Shares") at a price set forth in the Warrant; and

         WHEREAS, MICA has proposed to GE Medical that GE Medical accept as
payment in full of the amounts currently outstanding under the MICA Promissory
Note (1) a cash payment by MICA to GE Medical of $1,425,000 and (2) application
by MICA of $912,000 of the principal amount outstanding under the MICA
Promissory Note to the exercise price payable by GE Medical in connection with
the exercise by GE Medical of its right to purchase 160,000 Common Shares under
the Warrant; and

         WHEREAS, MICA has proposed that it issue to GE Medical, in connection
with such transaction, a Common Stock Purchase Warrant to purchase 60,000 Common
Shares; and

         WHEREAS, GE Medical has agreed to such proposal of MICA on the terms
and conditions set forth herein;


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         NOW, THEREFORE, for good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the parties hereto hereby agree as
follows:

         1. MICA Promissory Note. (a)(i) MICA hereby agrees that, no later than
three business days after the date of this Agreement, MICA shall make a cash
payment to GE Medical in the amount of $1,425,000 by wire transfer of
immediately available funds to an account designated by GE Medical. MICA hereby
authorizes GE Medical to initiate a debit entry for such payment from MICA's
account in lieu of such wire transfer payment.

                           (ii) MICA agrees that, no later than three business
days after the date of this Agreement, it will issue to GE Medical 160,000
Common Shares in connection with the exercise by GE Medical of the Warrant. Such
Common Shares will be duly and validly issued and fully paid and nonassessable
and not subject to preemptive rights.

                  (b) GE Medical hereby agrees that its receipt from MICA of the
cash payment of $1,425,000 referred to in paragraph (a)(i) of this Section 1 and
160,000 Common Shares issued by MICA under the Warrant shall constitute payment
in full of all unpaid principal and accrued and unpaid interest under the MICA
Promissory Note. GE Medical agrees that, as soon as practicable after such
receipt, it shall cancel the Promissory Note held thereby and return such
Promissory Note to MICA.

         2. Amendment of Existing Credit Documentation.

                  (a)(i) Credit Agreement Amendment. GE Medical and MICA agree
that the Credit Agreement is, effective as of the date hereof, hereby amended by
deleting from Section 1.36 thereof the phrase "under or in connection with the
Note" and substituting therefor the phrase ", including, without limitation, all
Liabilities of MICA or any Subsidiary to GE arising in connection with equipment
leases and services provided by GE to MICA or any such Subsidiary,".

                           (ii) Security Agreement Amendment. GE Medical and
each of the MICA Obligors agree that the Security Agreement is, effective as of
the date hereof, amended by deleting from Section 7(a) thereof the phrase "under
the Promissory Note" and substituting therefor the phrase ", including, without
limitation, all Obligations of MICA or any Subsidiary to GE arising in
connection with equipment leases and services provided by GE to MICA or any such
Subsidiary,".

                  (b)(i) On and after the date hereof, each reference in either
of the Credit Agreement or the Security Agreement to "this Agreement," "hereto"
or "hereof," or words of like import, and each reference in the Security
Agreement to the Credit Agreement and each reference in the Credit Agreement to
the Security Agreement, shall mean and be a reference to the Credit Agreement or
the Security Agreement, as the case may be, as amended hereby.

                           (ii) Except as specifically amended hereby, the
Credit Agreement and the Security Agreement shall remain in full force and
effect and are hereby ratified and confirmed.


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         3. Additional Warrant. MICA hereby agrees that, no later than three
business days after the date of this Agreement, MICA shall issue and deliver to
GE Medical a Common Stock Purchase Warrant (the "Additional Warrant"), in the
form attached hereto as Exhibit A, to purchase 60,000 fully paid and
nonassessable Common Shares, at an exercise price of $8.50 per Common Share,
which exercise price shall be adjusted as set forth in the Additional Warrant.
The Additional Warrant shall be executed on behalf of MICA by the president or
any executive officer of MICA under its corporate seal.

         4. Representations and Warranties of MICA. (a) MICA hereby represents
and warrants to GE Medical that each of MICA Medical Technology Services, Inc.,
MICA CAL XI Inc., MICA KAN I Inc., MICA KAN II Inc., MICA OK I Inc. and MICA TX
I, Inc. (collectively, the "Dissolved MICA Subsidiaries") was a wholly-owned
subsidiary of MICA as of the execution and delivery thereby of the Security
Agreement as of May 27, 1993.

                  (b) MICA hereby represents and warrants to GE Medical that (i)
each of the Dissolved MICA Subsidiaries has been dissolved in accordance with
the laws of the State of Delaware or the State of California, as the case may
be, (ii) none of the Dissolved Subsidiaries is currently in existence and (iii)
at the time of the dissolution of each of the Dissolved MICA Subsidiaries, such
Dissolved MICA Subsidiary transferred all of its right, title and interest in
the Collateral (as such term is defined in the Security Agreement) held thereby
to MICA or one of the other MICA Subsidiaries.

                  5. Counterparts. This Agreement may be executed in
counterparts, each of which when executed shall be deemed to be an original but
all of which taken together shall constitute one and the same agreement.

                  6. Governing Law. This Agreement shall be governed by, and
construed in accordance with, the laws of the State of California.






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

                                          GENERAL ELECTRIC COMPANY,
                                           acting through
                                           GE Medical Systems

                                          By: /s/ R.S. Berger
                                              ----------------------------------
                                             Title: Manager, Financial Services

                                          MEDICAL IMAGING CENTERS
                                                         OF AMERICA, INC.

                                          By: /s/ Robert S. Muehlberg
                                              ----------------------------------
                                             Title: President and CEO

                                          MICA IMAGING, INC.

                                          By: /s/ Denise L. Sunseri
                                              ----------------------------------
                                             Title: Vice President and CFO

                                          MICA CAL I INC.

                                          By: /s/ Robert S. Muehlberg
                                              ----------------------------------
                                             Title: President and CEO

                                          MICA CAL II INC.

                                          By: /s/ Robert S. Muehlberg
                                              ----------------------------------
                                             Title: President and CEO

                                          MICA CAL III INC.

                                          By: /s/ Robert S. Muehlberg
                                              ----------------------------------
                                             Title: President and CEO


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                                         MICA CAL IV INC.

                                         By: /s/ Robert S. Muehlberg
                                             -------------------------------
                                            Title: President and CEO

                                         MICA CAL VII INC.

                                         By: /s/ Robert S. Muehlberg
                                             -------------------------------
                                            Title: President and CEO

                                         MICA CAL X, INC.

                                         By: /s/ Robert S. Muehlberg
                                             -------------------------------
                                            Title: President and CEO

                                         MICA FLO I INC.

                                         By: /s/ Robert S. Muehlberg
                                             -------------------------------
                                            Title: President and CEO

                                         MICA OR I INC.

                                         By: /s/ Robert S. Muehlberg
                                             -------------------------------
                                            Title: President and CEO

                                         MICA PACIFIC, INC.

                                         By: /s/ Robert S. Muehlberg
                                             -------------------------------
                                            Title: President and CEO

                                         AFFILIATED IMAGING
                                          NETWORK, INC.

                                         By: /s/ Robert S. Muehlberg
                                             -------------------------------
                                            Title: President and CEO


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                                    EXHIBIT A

                    MEDICAL IMAGING CENTERS OF AMERICA, INC.

                          COMMON STOCK PURCHASE WARRANT

                                JANUARY 16, 1996


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                                TABLE OF CONTENTS



                                                                                                          Page
                                                                                                          ----

                                                                                                       
1.        DEFINITIONS....................................................................................  1

2.        EXERCISE OF WARRANT............................................................................  5

          2.1           Manner of Exercise...............................................................  5
          2.2           Payment of Taxes.................................................................  5
          2.3           Fractional Shares................................................................  6
          2.4           Continued Validity...............................................................  6

3.        TRANSFER, DIVISION AND COMBINATION.............................................................  6

          3.1           Transfer.........................................................................  6
          3.2           Division and Combination.........................................................  7
          3.3           Expenses.........................................................................  7
          3.4           Maintenance of Books.............................................................  7

4.        ADJUSTMENTS....................................................................................  7

          4.1           Stock Dividends, Subdivisions, Combinations and Reclassifications................  7
          4.2           Other Provisions Applicable to Adjustments under this Section....................  8

                        (a)            When Adjustments to Be Made.......................................  8
                        (b)            When Adjustment Not Required......................................  8

5.        NOTICES TO WARRANT HOLDERS.....................................................................  9

          5.1           Notice of Adjustments............................................................  9
          5.2           Notice of Certain Corporate Action...............................................  9

6.        NO IMPAIRMENT..................................................................................  9

7.        RESERVATION AND AUTHORIZATION OF COMMON STOCK; REGISTRATION
          WITH OR APPROVAL OF ANY GOVERNMENTAL AUTHORITY................................................. 10

8.        TAKING OF RECORD; STOCK AND WARRANT TRANSFER BOOKS............................................. 10

9.        RESTRICTIONS ON TRANSFERABILITY................................................................ 11

          9.1           Restrictive Legend............................................................... 11






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          9.2           Notice of Proposed Transfers..................................................................... 12
          9.3           Required Registration............................................................................ 13

                        (a)            Suspension of Registration........................................................ 13
                        (b)            Hold-Back Agreements.............................................................. 14

                                       (i)  Restrictions on Public Sale By Holder of Registrable Securities.............. 14
                                       (ii) Restrictions on Sale of Equity Securities by the Company and
                                                     Others.............................................................. 14

          9.4           Incidental Registration.......................................................................... 15
          9.5           Registration Procedures.......................................................................... 16
          9.6           Expenses; Limitations on Registration............................................................ 20
          9.7           Indemnification.................................................................................. 20
          9.8           Termination of Restrictions...................................................................... 22
          9.9           Listing on Securities Exchange................................................................... 23
          9.10          Certain Limitations on Registration Rights....................................................... 23
          9.11          Selection of Managing Underwriters............................................................... 24

10.       SUPPLYING INFORMATION.......................................................................................... 24

11.       LOSS OR MUTILATION............................................................................................. 24

12.       OFFICE OF THE COMPANY.......................................................................................... 24

13.       FINANCIAL AND BUSINESS INFORMATION............................................................................. 24

          13.1          Information...................................................................................... 24
          13.2          Annual Information............................................................................... 25
          13.3          Filings.......................................................................................... 25

14.       APPRAISAL...................................................................................................... 26

15.       LIMITATION OF LIABILITY........................................................................................ 26

16.       MISCELLANEOUS.................................................................................................. 26

          16.1          Nonwaiver and Expenses........................................................................... 26
          16.2          Notice Generally................................................................................. 26
          16.3          Indemnification.................................................................................. 27
          16.4          Remedies......................................................................................... 28
          16.5          Successors and Assigns........................................................................... 28
          16.6          Amendment........................................................................................ 28
          16.7          Severability..................................................................................... 28






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               16.8          Headings..................................................................... 28
               16.9          Governing Law; Service of Process............................................ 28
               16.10 MUTUAL WAIVER OF JURY TRIAL.......................................................... 29



EXHIBIT A - SUBSCRIPTION FORM

EXHIBIT B - ASSIGNMENT FORM


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         THIS COMMON STOCK PURCHASE WARRANT AND THE SECURITIES FOR WHICH IT CAN
BE EXERCISED HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS
AMENDED, AND MAY NOT BE TRANSFERRED IN VIOLATION OF SUCH ACT OR STATE LAW, THE
RULES AND REGULATIONS THEREUNDER OR THE TRANSFER RESTRICTIONS OF THIS WARRANT.

                    MEDICAL IMAGING CENTERS OF AMERICA, INC.

                          COMMON STOCK PURCHASE WARRANT

                      60,000 Shares, Subject to Adjustment

                                January 16, 1996

         THIS IS TO CERTIFY THAT GENERAL ELECTRIC COMPANY, a New York
corporation acting through GE Medical Systems, or registered assigns, is
entitled, at any time on and after the Exercise Date (as such term is
hereinafter defined) and on or prior to the Expiration Date (as such term is
hereinafter defined), to purchase from MEDICAL IMAGING CENTERS OF AMERICA, INC.,
a California corporation (the "Company"), 60,000 shares of Common Stock (as such
term is hereinafter defined), subject to adjustment as provided herein, of the
Company at a purchase price of $8.50 per share of Common Stock (subject to
adjustment as provided herein), all on the terms and conditions and pursuant to
the provisions hereinafter set forth.

1. DEFINITIONS

         As used in this Warrant, the following terms have the respective
meanings set forth below.

         "Additional Shares of Common Stock" shall mean all shares of Common
Stock issued by the Company following the date of this Warrant.

         "Appraised Value" shall mean, in respect of any share of Common Stock
on any date herein specified, the fair market value of such share of Common
Stock (determined without giving effect to the discount for (i) a minority
interest or (ii) any lack of liquidity of the Common Stock or to the fact that
the Company may have no class of equity registered under the Exchange Act) as of
the last day of the most recent fiscal month to end within 60 days prior to such
date specified, based on the value of the Company as a whole, as determined by a
member or members of the NASD selected in accordance with the definition below
of "Current Market Price" on the basis of a sale between a willing seller and
buyer, neither acting under any compulsion, divided by the number of Fully
Diluted Outstanding shares of Common Stock.


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         "Book Value" shall mean, in respect of any share of Common Stock on any
date herein specified, the consolidated book value of the Company applicable to
Common Stock as of the last day of any month immediately preceding such date,
divided by the number of Fully Diluted Outstanding shares of Common Stock as
determined in accordance with GAAP by a firm of independent certified public
accountants of recognized national standing selected by the Company and
reasonably acceptable to the Holder.

         "Business Day" shall mean any day that is not a Saturday or Sunday or a
day on which banks are required or permitted to be closed in the States of New
York or California.

         "Commission" shall mean the Securities and Exchange Commission or any
other federal agency then administering the Securities Act and other federal
securities laws.

         "Common Stock" shall mean (except where the context otherwise
indicates) the Common Stock of the Company, and any capital stock into which
such Common Stock may thereafter be changed, and shall also include capital
stock of the Company of any other class (regardless of how denominated) issued
to the holders of shares of Common Stock upon any reclassification thereof which
is not preferred as to dividends or assets over any other class of stock of the
Company and which is not subject to redemption.

         "Convertible Securities" shall mean evidences of indebtedness, options,
warrants or other rights to receive shares of stock or other securities which
are convertible into or exchangeable, with or without payment of additional
consideration in cash or property, for Common Stock, either immediately or upon
the occurrence of a specified date or a specified event.

         "Current Market Price" shall mean, in respect of any share of Common
Stock on any date herein specified, the highest of (a) the Book Value per share
of Common Stock at such date, and (b) the Appraised Value per share of Common
Stock as at such date, or if there shall then be a public market for the Common
Stock, the highest of (x) the Book Value per share of Common Stock at such date,
and (y) the average of the daily market prices for 30 consecutive Business Days
commencing 45 days before such date. The daily market price for each such day
shall be (i) if the Common Stock is listed or admitted to trading on a stock
exchange in the United States (including Nasdaq), the last sale price on such
day on the principal stock exchange on which such Common Stock is then listed or
admitted to trading, or (ii) if no sale takes place on such day on any such
exchange, the average of the last reported closing bid and asked prices on such
day as officially quoted on any such exchange.

         "Current Warrant Price" shall mean, in respect of a share of Common
Stock at any date herein specified, the price at which a share of Common Stock
may be purchased pursuant to this Warrant on such date.

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


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         "Exercise Date" shall mean the date hereof.

         "Exercise Period" shall mean the period during which this Warrant is
exercisable pursuant to Section 2.1.

         "Expiration Date" shall mean December 31, 1998.

         "Fully Diluted Outstanding" shall mean, when used with reference to
Common Stock, at any date as of which the number of shares thereof is to be
determined, all shares of Common Stock Outstanding at such date and all shares
of Common Stock issuable in respect of this Warrant and all other options,
warrants, Convertible Securities or other rights to purchase or receive Common
Stock outstanding on such date.

         "GAAP" shall mean generally accepted accounting principles in the
United States of America as from time to time in effect.

         "GE Medical" shall mean General Electric Company, a New York
corporation acting through GE Medical Systems.

         "Holder" shall mean the Person or Persons in whose name the Warrant set
forth herein is registered on the books of the Company maintained for such
purpose. In the event more than one Person is so registered, "Holder" for
purposes of consent, demand or other action allowed or required to be taken
hereunder by the Holders of this Warrant, the word "Holder" shall refer to a
simple majority in interest of such Persons.

         "NASD" shall mean the National Association of Securities Dealers, Inc.,
or any successor corporation thereto.

         "Outstanding" shall mean, when used with reference to Common Stock, at
any date as of which the number of shares thereof is to be determined, all
issued shares of Common Stock, except shares then owned or held exclusively by
or for the account solely of the Company or any wholly-owned subsidiary thereof
(collectively, "Subsidiary-Held Shares"), and shall include all shares issuable
in respect of any certificates representing fractional interests in shares of
Common Stock. Subsidiary-Held Shares shall remain Subsidiary-Held Shares even if
held in pledge as security unless and until such shares are foreclosed upon and
record, beneficial or equitable ownership transferred.

         "Person" shall mean any individual, sole proprietorship, partnership,
joint venture, trust, incorporated organization, association, corporation,
institution, public benefit corporation, entity or government (whether federal,
state, county, city, municipal or otherwise, including, without limitation, any
instrumentality, division, agency, body or department thereof).

         "Preferred Stock" shall mean any class of the Company's stock having
rights, preferences or privileges senior or prior in right to any other class.


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         "Restricted Common Stock" shall mean shares of Common Stock which are,
or which upon their issuance on the exercise of this Warrant would be, evidenced
by a certificate bearing the restrictive legend set forth in Section 9.1(a).

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

         "Subsidiary" shall mean, with respect to any Person, any corporation of
which an aggregate of more than 50 percent of the outstanding stock having
ordinary voting power to elect a majority of the board of directors of such
corporation (irrespective of whether, at the time, stock of any other class or
classes of such corporation shall have or might have voting power by reason of
the happening of any contingency) is at the time, directly or indirectly, owned
legally or beneficially by such Person and/or one or more Subsidiaries of such
Person.

         "Subsidiary-Held Shares" shall have the meaning set forth above in the
definition of "Outstanding."

         "Transfer" shall mean any disposition of any Warrant or Warrant Stock
or of any interest in either thereof, which would constitute a sale thereof
within the meaning of the Securities Act.

         "Transfer Notice" shall have the meaning set forth in Section 9.2.

         "Warrants" shall mean this Warrant and all warrants issued upon
transfer, division or combination of, or in substitution for, this Warrant. All
Warrants shall at all times be identical as to terms and conditions and date,
except as to the percentage of Fully Diluted Outstanding Shares of Common Stock
for which they may be exercised. Collectively, all unexercised Warrants shall be
exercisable for the exact same number of shares as this Warrant would be
exercisable in the event any such Transfer or division had not occurred.
Exercise of any warrant shall not trigger any of the adjustments contemplated by
Section 4 of this Warrant.

         "Warrant Price" shall mean an amount equal to (i) the number of shares
of Common Stock being purchased upon exercise of this Warrant pursuant to
Section 2.1, multiplied by (ii) the Current Warrant Price as of the date of such
exercise.

         "Warrant Stock" shall mean the shares of Common Stock purchased by the
holders of the Warrants upon the exercise thereof.

2. EXERCISE OF WARRANT

         2.1 Manner of Exercise. From and after the Exercise Date and until 5:00
p.m., California time, on the Expiration Date, the Holder may exercise the
Warrant on Business Days, for all or any portion of 60,000 shares (subject to
adjustment as provided hereunder) of Common Stock then purchasable hereunder.


                                        4
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         In order to exercise this Warrant, in whole or in part, Holder shall
deliver to the Company at its principal office at 9444 Farnham Street, Suite
100, San Diego, California 92123 or at the office or agency designated by the
Company pursuant to Section 12, (i) a written notice of Holder's election to
exercise this Warrant, which notice shall specify the number of shares of Common
Stock to be purchased, (ii) payment of the Warrant Price in the manner specified
below, and (iii) this Warrant. Such notice shall be substantially in the form of
the subscription form appearing at the end of this Warrant as Exhibit A, duly
executed by Holder or its agent or attorney. Upon receipt thereof, the Company
shall, as promptly as practicable, and in any event within five Business Days
thereafter, execute or cause to be executed and deliver or cause to be delivered
to Holder a certificate or certificates representing the aggregate number of
full shares of Outstanding shares of Common Stock issuable upon such exercise.
The stock certificate or certificates so delivered shall be, to the extent
possible, in such denomination or denominations as such Holder shall request in
the notice and shall be registered in the name of Holder or, subject to Section
9, such other name as shall be designated in the notice. This Warrant shall be
deemed to have been exercised and such certificate or certificates shall be
deemed to have been issued, and Holder or any other Person so designated to be
named therein shall be deemed to have become a holder of record of such shares
for all purposes, as of the date the notice, together with the payment as set
forth below, and this Warrant are received by the Company as described above and
all taxes required to be paid by Holder, if any, pursuant to Section 2.2 prior
to the issuance of such shares have been paid or agreed to be paid when finally
determined.

         Payment of the Warrant Price shall be made at the option of the Holder
by certified or official bank check, or by cancellation of indebtedness, if any,
owed by the Company to such Holder.

         2.2 Payment of Taxes. All shares of Common Stock issuable upon the
exercise of this Warrant pursuant to the terms hereof shall be validly issued,
fully paid and nonassessable. The Company shall pay all expenses in connection
with, and all taxes and other governmental charges that may be imposed with
respect to, the issue or delivery thereof, unless such tax or charge is imposed
by law upon Holder, in which case such taxes or charges shall be paid by Holder.
The Company shall not be required, however, to pay any tax or other charge
imposed in connection with any transfer involved in the issuance of any
certificate for shares of Common Stock issuable upon exercise of this Warrant in
any name other than that of Holder, and in such case the Company shall not be
required to issue or deliver any stock certificate until such tax or other
charge has been paid or it has been established to the satisfaction of the
Company that no such tax or other charge is due.

         2.3 Fractional Shares. The Company shall not issue a fractional share
of Common Stock upon exercise of this Warrant. A fractional share otherwise
issuable shall be rounded up to the nearest whole share.

         2.4 Continued Validity. A holder of shares of Common Stock issued upon
the exercise of this Warrant (other than a holder who acquires such shares after
the same have been publicly sold pursuant to a Registration Statement under the
Securities Act or sold pursuant to Rule 144


                                        5
   15
thereunder), shall continue to be entitled with respect to such shares to all
rights to which it would have been entitled as Holder under Sections 9, 10, 13,
and 16 of this Warrant. The Company shall, at the time of each exercise of this
Warrant upon the request of the holder of the shares of Common Stock issued upon
such exercise hereof, acknowledge in writing, in form reasonably satisfactory to
such holder, its continuing obligation to afford to such holder all such rights;
provided, however, that if such holder shall fail to make any such request, such
failure shall not affect the continuing obligation of the Company to afford to
such holder all such rights.

3. TRANSFER, DIVISION AND COMBINATION

         3.1 Transfer. This Warrant shall be nontransferable other than to a
division, subsidiary or affiliate of GE Medical except by merger of the Holder
with another entity or otherwise as contemplated in Section 9 hereof or by
operation of law. Subject to compliance with Section 9, transfer of this Warrant
and all rights hereunder, in whole or in part, shall be registered on the books
of the Company to be maintained for such purpose, upon surrender of this Warrant
at the principal office of the Company referred to in Section 2.1 or the office
or agency designated by the Company pursuant to Section 12, together with a
written assignment of this Warrant substantially in the form of Exhibit B hereto
duly executed by Holder or its agent or attorney and funds sufficient to pay any
transfer taxes payable upon the making of such transfer. Upon such surrender
and, if required, such payment, the Company shall, subject to Section 9, execute
and deliver a new Warrant or Warrants in the name of the assignee or assignees
and in the denomination specified in such instrument of assignment, and shall
issue to the assignor a new Warrant evidencing the portion of this Warrant not
so assigned, and this Warrant shall promptly be cancelled. A Warrant, if
properly assigned in compliance with Section 9, may be exercised by a new Holder
for the purchase of shares of Common Stock without having a new Warrant issued.
If requested by the Company, a new Holder shall acknowledge in writing, in form
reasonably satisfactory to the Company, such Holder's continuing obligations
under Section 9 of this Warrant.

         3.2 Division and Combination. Subject to Section 9, this Warrant may be
divided or combined with other Warrants upon presentation hereof at the
aforesaid office or agency of the Company, together with a written notice
specifying the names and denominations in which new Warrants are to be issued,
signed by Holder or its agent or attorney. Subject to compliance with Section
3.1 and with Section 9, as to any transfer which may be involved in such
division or combination, the Company shall execute and deliver a new Warrant or
Warrants in exchange for the Warrant or Warrants to be divided or combined in
accordance with such notice.

         3.3 Expenses. The Company shall prepare, issue and deliver at its own
expense (other than transfer taxes) the new Warrant or Warrants under this
Section 3.

         3.4 Maintenance of Books. The Company shall maintain, at its aforesaid
office or agency, books for the registration, and the registration of transfer,
of this Warrant.

4. ADJUSTMENTS


                                        6
   16
         The number of shares of Common Stock for which this Warrant is
exercisable, or the price at which such shares may be purchased upon exercise of
this Warrant shall be subject to adjustment from time to time as set forth in
this Section 4. The Company shall give each Holder notice of any event described
below which requires an adjustment pursuant to this Section 4 at the time of
such event.

         4.1 Stock Dividends, Subdivisions, Combinations and Reclassifications.
If at any time the Company shall with respect to its Common Stock or Convertible
Securities:

                  (a) pay a dividend or make distribution of Additional Shares
         of Common Stock or Convertible Securities other than convertible
         indebtedness or convertible Preferred Stock (in which event such
         Additional Shares of Common Stock issuable upon exchange or conversion
         shall be deemed distributed),

                  (b) subdivide its outstanding shares of Common Stock into a
         larger number of shares of Common Stock,

                  (c) combine its outstanding shares of Common Stock into a
         smaller number of shares of Common Stock, or

                  (d) reclassify its Common Stock (other than a change in par
         value, or from par value to no par value) into shares of Common Stock
         and shares of any other class of stock; and, if the Outstanding shares
         of Common Stock shall be changed into a larger or smaller number of
         shares of Common Stock as a part of such reclassification, such change
         shall be deemed a subdivision or combination, as the case may be, of
         the Outstanding shares of Common Stock within the meaning of this
         Section 4.1.,

then (i) the number of shares of Common Stock for which this Warrant is
exercisable after the occurrence of any such event shall be equal to (A) the
maximum number of shares of Common Stock underlying this Warrant prior to the
occurrence of any such event, multiplied by (B) the number of Fully Diluted
Outstanding shares of Common Stock after any such event, divided by the number
of Fully Diluted Outstanding shares of Common Stock prior to any such event, and
(ii) the Current Warrant Price shall be adjusted to equal the Current Warrant
Price multiplied (A) by the number of shares of Common Stock for which this
Warrant is exercisable immediately prior to the adjustment divided by (B) the
number of shares for which this Warrant is exercisable immediately after such
adjustment. Any increased number of shares of Common Stock subject to this
Warrant resulting from application of the foregoing shall be allocated ratably
among all shares of Common Stock subject to this Warrant prior to each such
event and the shares (including the newly allocated shares) not subject to
clause (i) of Section 2.1 shall remain subject to the conditions precedent to
exercise described in clause (ii) of Section 2.1.




                                       7
   17
         4.2 Other Provisions Applicable to Adjustments under this Section. The
following provisions shall be applicable to the making of adjustments of the
number of shares of Common Stock for which this Warrant is exercisable provided
for in this Section 4:

                             (a) When Adjustments to Be Made. The adjustments
               required by this Section 4 shall be made whenever and as often as
               any specified event requiring an adjustment shall occur. For the
               purpose of any adjustment, any specified event shall be deemed to
               have occurred at the close of business on the date of its
               occurrence.

                             (b) When Adjustment Not Required. If the Company
               shall take a record of the holders of its Common Stock for the
               purpose of entitling them to receive a dividend or distribution
               or subscription or purchase rights and shall, thereafter and
               before the distribution to stockholders thereof, legally abandon
               its plan to pay or deliver such dividend, distribution,
               subscription or purchase rights, then thereafter no adjustment
               shall be required by reason of the taking of such record and any
               such adjustment previously made in respect thereof shall be
               rescinded and annulled.


                                        8
   18
5. NOTICES TO WARRANT HOLDERS

         5.1 Notice of Adjustments. Whenever the number of shares of Common
Stock for which this Warrant is exercisable, or whenever the price at which a
share of such Common Stock may be purchased upon exercise of this Warrant, shall
be adjusted pursuant to Section 4, the Company shall forthwith prepare a
certificate to be executed by the chief financial officer of the Company setting
forth, in reasonable detail, the event requiring the adjustment and the method
by which such adjustment was calculated, specifying the number of shares of
Common Stock for which this Warrant is exercisable, and any change in the
purchase price or prices thereof, after giving effect to such adjustment or
change. The Company shall promptly cause a signed copy of such certificate to be
delivered to each Holder in accordance with Section 16.2. The Company shall keep
at its office or agency designated pursuant to Section 12 copies of all such
certificates and cause the same to be available for inspection at said office
during normal business hours by any Holder or any prospective purchaser of a
Warrant designated by a Holder thereof.

         5.2 Notice of Certain Corporate Action. The Holder shall be entitled to
the same rights to receive notice of corporate action as any holder of Common
Stock.

6. NO IMPAIRMENT

         The Company shall not by any action including, without limitation,
amending its certificate of incorporation or through any reorganization,
transfer of assets, consolidation, merger, dissolution, issue or sale of
securities or any other voluntary action, avoid or seek to avoid the observance
or performance of any of the terms of this Warrant, but will at all times in
good faith assist in the carrying out of all such terms and in the taking of all
such actions as may be necessary or appropriate to protect the rights of Holder
against impairment. Without limiting the generality of the foregoing, the
Company will (a) not increase the par value, if any, of any shares of Common
Stock receivable upon the exercise of this Warrant above the amount payable
therefor upon such exercise immediately prior to such increase in par value, (b)
take all such action as may be reasonably necessary or appropriate in order that
the Company may validly and legally issue fully paid and nonassessable shares of
Common Stock upon the exercise of this Warrant, and (c) use its best efforts to
obtain all such authorizations, exemptions or consents from any public
regulatory body having jurisdiction thereof as may be necessary to enable the
Company to perform its obligations under this Warrant.

         Upon the request of Holder, the Company will at any time during the
period this Warrant is outstanding acknowledge in writing, in form satisfactory
to Holder, the continuing validity of this Warrant and the obligations of the
Company hereunder.

7. RESERVATION AND AUTHORIZATION OF COMMON STOCK; REGISTRATION WITH OR APPROVAL
   OF ANY GOVERNMENTAL AUTHORITY

         From and after the date hereof, the Company shall at all times reserve
and keep available for issuance upon the exercise of Warrants such number of its
authorized but unissued shares of


                                        9
   19
Common Stock as will be sufficient to permit the exercise in full of all
outstanding Warrants. All shares of Common Stock which shall be so issuable,
when issued upon exercise of any Warrant and payment therefor in accordance with
the terms of such Warrant, shall be duly and validly issued and fully paid and
nonassessable, and not subject to preemptive rights.

         Before taking any action which would cause an adjustment reducing the
Current Warrant Price below the then par value, if any, of the shares of Common
Stock issuable upon exercise of the Warrants, the Company shall take any
corporate action which may be reasonably necessary in order that the Company may
validly and legally issue fully paid and nonassessable shares of such Common
Stock at such adjusted Current Warrant Price.

         Before taking any action which would result in an adjustment in the
number of shares of Common Stock for which this Warrant is exercisable or in the
Current Warrant Price, the Company shall obtain all such authorizations or
exemptions thereof, or consents thereto, as may be reasonably necessary from any
public regulatory body or bodies having jurisdiction thereof.

         If any shares of Common Stock required to be reserved for issuance upon
exercise of warrants require registration or qualification with any governmental
authority under any federal or state law (otherwise than as provided in Section
9) before such shares may be so issued, the Company will in good faith and as
expeditiously as possible and at its expense endeavor to cause such shares to be
duly registered or qualified; provided that the provisions of Section 9 shall
govern with respect to Company's obligation to effect the registration of its
securities under the Securities Act.

8. TAKING OF RECORD; STOCK AND WARRANT TRANSFER BOOKS

         In the case of all dividends or other distributions by the Company to
the holders of its Common Stock with respect to which any provision of Section 4
refers to the taking of a record of such holders, the Company will in each such
case take such a record and will take such record as of the close of business on
a Business Day. The Company will not at any time, except upon dissolution,
liquidation or winding up of the Company, close its stock transfer books or
Warrant transfer books so as to result in preventing or delaying the exercise or
transfer of any Warrant.

9. RESTRICTIONS ON TRANSFERABILITY

         This Warrant shall not be transferable except to a division, subsidiary
or affiliate of GE Medical or by merger of the Holder with another entity or
otherwise by operation of law. Furthermore, this Warrant and the Warrant Stock
shall not be transferred, hypothecated or assigned before satisfaction of the
conditions specified in this Section 9, which conditions are intended to ensure
compliance with the provisions of the Securities Act and state law, with respect
to the Transfer of this Warrant or any Warrant Stock. Holder, by acceptance of
this Warrant, agrees to be bound by the provisions of this Section 9.
Furthermore, Holder, by acceptance of this Warrant and by acceptance and
delivery of the Subscription Form in the form of Exhibit A hereto, represents
and warrants to the Company for its reliance in connection with issuing this


                                       10
   20
Warrant and the Warrant Stock, respectively, that (i) Holder is acquiring the
Warrant, and if applicable, the Warrant Stock for Holder's own account for
investment and not for sale or other disposition thereof; (ii) Holder
understands that such securities are not registered under the Securities Act and
must be held indefinitely unless subsequently registered under the Securities
Act or unless an exemption from such registration is available; (iii) Holder, by
reason of its business and financial experience has the capacity to protect its
own interests in connection with purchase and transfer of such securities and is
able to bear the economic risk thereof; and (iv) the Company has made available
to Holder all documents and information regarding an investment in such
securities requested by or on behalf of Holder, including but not limited to all
publicly available information on file with the Commission.

         9.1 Restrictive Legend.

                  (a) Except as otherwise provided in this Section 9, each
         certificate for Warrant Stock initially issued upon the exercise of
         this Warrant, and each certificate for Warrant Stock issued to any
         subsequent transferee of any such certificate, shall be stamped or
         otherwise imprinted with a legend in substantially the following form:

                      The shares represented by this certificate have not been
                      registered under the Securities Act of 1933, as amended,
                      and are subject to the conditions specified in a certain
                      Common Stock Purchase Warrant dated as of January 16,
                      1996, originally issued by Medical Imaging Centers of
                      America, Inc. No transfer of the shares represented by
                      this certificate shall be valid or effective until such
                      conditions and any requirements of state law have been
                      fulfilled. A copy of the form of such Warrant is on file
                      with the Secretary of Medical Imaging Centers of America,
                      Inc. The holder of this certificate, by acceptance of this
                      certificate, agrees to be bound by the provisions of such
                      Warrant.

                  (b) Except as otherwise provided in this Section 9, each
         Warrant shall be stamped or otherwise imprinted with a legend in
         substantially the following form:

                      This Warrant and its underlying securities have not been
                      registered under the Securities Act of 1933, as amended,
                      and may not be transferred in violation of such Act or
                      state law, the rules and regulations thereunder or the
                      provisions of this Warrant.

         9.2 Notice of Proposed Transfers.


                                       11
   21
                  (a) Prior to any Transfer or attempted Transfer of any
         Warrants or any shares of Warrant Stock, the holder of such Warrants or
         Warrant Stock shall give 10 days prior written notice (a "Transfer
         Notice") to the Company of such holder's intention to effect such
         Transfer, describing the manner and circumstances of the proposed
         Transfer, and shall obtain and deliver to the Company an opinion in
         form and substance reasonably satisfactory to the Company (addressed to
         the Company and upon which the Company may rely) from counsel to such
         holder who shall be reasonably satisfactory to the Company, that the
         proposed Transfer of such Warrants or such Warrant Stock may be
         effected without registration under the Securities Act and any
         applicable state securities laws. After receipt of the Transfer Notice
         and opinion, the Company shall, within five days thereof, so notify the
         holder of such Warrants or Warrant Stock and such holder shall
         thereupon be entitled to Transfer such Warrants or such Warrant Stock,
         in accordance with the terms of the Transfer Notice. Each certificate,
         if any, evidencing such shares of Warrant Stock issued upon such
         Transfer shall bear the restrictive legend set forth in Section 9.1(a),
         and each Warrant issued upon such Transfer shall bear the restrictive
         legend set forth in Section 9.1(b), unless in the opinion of such
         counsel such legend is not required in order to ensure compliance with
         the Securities Act and any applicable state securities laws. The holder
         of the Warrants or the Warrant Stock, as the case may be, giving the
         Transfer Notice shall not be entitled to transfer and shall not
         transfer such Warrants or such Warrant Stock until (i) the Company
         receives a written statement of investment intent and sophistication
         from the proposed transferee of such Warrants or Warrant Stock in
         substance substantially similar to the final sentence of the first
         paragraph of Section 9 and (ii) such holder receives notice from the
         Company under this Section 9.2.

                  (b) The Holders of Warrants and Warrant Stock shall have the
         right to request registration of such Warrant Stock pursuant to
         Sections 9.3 and 9.4.

         9.3 Required Registration. The rights ("Required Registration") of
holders of Warrants or Warrant Stock under this Section 9.3 shall expire on the
Expiration Date. After receipt of a written request from holders of Warrants or
Warrant Stock representing at least an aggregate of 50 percent of the total of
(i) all shares of Warrant Stock then subject to issuance upon exercise of all
Warrants or (ii) all shares of Warrant Stock then Outstanding having an
aggregate Current Market Price in excess of $400,000, requesting that the
Company effect the registration of Warrant Stock issuable upon the exercise of
such holder's Warrants or of any of such holder's Warrant Stock under the
Securities Act and specifying the intended method or methods of disposition
thereof, the Company shall promptly notify all holders of Warrants and Warrant
Stock in writing of the receipt of such request and each such holder, in lieu of
exercising its rights under Section 9.4, may elect (by written notice specifying
the intended method or methods of disposition of Warrant Stock sent to the
Company within 10 Business Days from the date of such holder's receipt of the
aforementioned Company's notice) to have such holder's shares of Warrant Stock
included in such registration thereof pursuant to this Section 9.3. Thereupon
the Company shall, as expeditiously as is possible, use its best efforts to
effect the registration under the Securities Act of all shares of Warrant Stock
which the Company has been so requested to register by such holders for sale,
all to the extent required to permit the disposition (in accordance with the


                                       12
   22
intended method or methods thereof, as aforesaid) of the Warrant Stock so
registered; provided, however, that the Company shall not be required to effect
more than one registration of any Warrant Stock pursuant to this Section 9.3. No
holder of any other warrant, Convertible Securities or other right to purchase
shares of Common Stock shall receive or be entitled to receive registration
rights that are more favorable than the registration rights available to the
Holder pursuant to the terms of this Section 9.

         (a) Suspension of Registration.

                  If the Company has been requested to effect a Required
         Registration, whether or not a Registration Statement with respect
         thereto has been filed or has become effective, and furnishes to the
         Holder requesting such registration a copy of a resolution of the Board
         of Directors of the Company certified by the Secretary of the Company
         stating that in the good faith judgment of the Board of Directors it
         would be seriously detrimental to the Company and its stockholders for
         such Registration Statement (i) to be filed on or before the date such
         filing would otherwise be required hereunder, (ii) to become effective
         or (iii) to remain effective as long as such Registration Statement
         would otherwise be required to remain effective, the Company shall have
         the right to defer such filing or effectiveness or to suspend such
         effectiveness for a period of not more than 120 days; provided,
         however, that during such time the Company may not file a Registration
         Statement for securities to be issued and sold for its own account or
         that of anyone other than the Holder or Holders requesting such
         Required Registration; and provided, further, that if effectiveness of
         a Registration Statement is suspended pursuant to this provision, the
         period of such suspension shall be added to the end of the period that
         such Registration Statement would otherwise be required to be effective
         hereunder so that the aggregate number of days that such Registration
         Statement is required to remain effective hereunder shall remain
         unchanged.

         (b) Hold-Back Agreements.

                  (i) Restrictions on Public Sale By Holder of Registrable
         Securities. Each Holder whose registrable securities are covered by a
         Registration Statement filed pursuant to this Warrant agrees, if
         requested by the managing underwriters in an underwritten offering, not
         to effect any public sale or distribution of securities of the Company
         of the same class as the securities included in such Registration
         Statement, including a sale pursuant to Rule 144 under the Securities
         Act (except as part of such underwritten registration), during the
         10-day period prior to, and during the 90-day period beginning on, the
         closing date of each underwritten offering made pursuant to such
         Registration Statement, to the extent timely notified in writing by the
         Company or the managing underwriters; provided, however, that the
         foregoing provisions shall not apply to any Holder if such Holder is
         prevented by applicable statute or regulation from entering any such
         agreement.


                                       13
   23
                  (ii) Restrictions on Sale of Equity Securities by the Company
         and Others. The Company agrees (1) not to effect any public or private
         offer, sale or distribution of its equity securities, including a sale
         pursuant to Regulation D under the Securities Act during the 10-day
         period prior to, and during the 90-day period beginning with, the
         effectiveness of a Registration Statement filed under this Warrant to
         the extent timely notified in writing by a holder of registrable
         securities or the managing underwriters (except as part of such
         registration, if permitted, or pursuant to registrations on Forms S-4
         or S-8 or any successor form to such Forms or the issuance of Common
         Stock pursuant to warrants or employee stock options outstanding on the
         date hereof) and (2) to use its best efforts to cause each holder of
         its privately placed equity securities purchased from the Company at
         any time on or after the date of this Agreement to agree not to effect
         any public sale or distribution of any such securities during such
         period, including a sale pursuant to Rule 144 under the Securities Act
         (except as part of such registration, if permitted).

9.4 Incidental Registration.

         (a) The rights of holders of Warrants or Warrant Stock under this
Section 9.4 shall expire on the Expiration Date. If the Company at any time
proposes to file on its behalf or on behalf of any of its security holders ("the
demanding security holders") a Registration Statement under the Securities Act
on any form (other than a Registration Statement required under section 9.3 or a
Registration Statement on Form S-4 or S-8 or any successor form for securities
to be offered in a transaction of the type referred to in Rule 145 under the
Securities Act or to employees of the Company pursuant to any employee benefit
plan or to existing holders of the Company's debt or equity securities in any
exchange or rights offering) for the general registration of securities to be
sold for cash with respect to its Common Stock or any other class of equity
security (as defined in Section 3(a)(11) of the Exchange Act) of the Company, it
will give written notice to all holders of Warrants or Warrant Stock at least 30
days before the initial filing with the Commission of such Registration
Statement, which notice shall set forth the intended method of disposition of
the securities proposed to be registered by the Company. The notice shall offer
to include in such filing the aggregate number of shares of Warrant Stock, and
the number of shares of Common Stock for which this Warrant is exercisable, as
such holders may request. Nothing herein shall preclude the Company from
discontinuing the registration of its securities being effected on its behalf or
on behalf of the demanding security holders at any time prior to the effective
date of the registration relating thereto.

         (b) Each holder of any such Warrants or any such Warrant Stock desiring
to have Warrant Stock registered under this Section 9.4 shall advise the Company
in writing within 30 days after the date of receipt of such offer from the
Company, setting forth the amount of such Warrant Stock for which registration
is requested. The Company shall thereupon include in such filing the number of
shares of Warrant Stock for which registration is so requested and shall use its
best efforts to effect registration under the


                                       14
   24
         Securities Act of such shares; provided, however, that if the managing
         underwriter of a proposed public offering shall advise the Company in
         writing that, in its opinion, the distribution of the shares of Common
         Stock into which the Warrants are exercisable and the Warrant Stock
         requested to be included in the registration concurrently with the
         securities being registered by the Company or such demanding security
         holder would materially and adversely affect the distribution of such
         securities by the Company or such demanding security holder, then all
         demanding security holders (other than any selling security holder who
         requested such registration and the Company (unless such Registration
         Statement was filed at the request of a demanding security holder))
         shall reduce the amount of securities each intended to distribute
         through such offering on a pro rata basis. Except as otherwise provided
         in Section 9.6 hereof, all expenses of such registration shall be borne
         by the Company.

         9.5 Registration Procedures. If the Company is required by the
provisions of this Section 9 to use its best efforts to effect the registration
of any of its securities under the Securities Act, the Company will, as
expeditiously as possible:

                  (a) prepare and file with the Commission a Registration
         Statement with respect to such securities and use its best efforts to
         cause such Registration Statement to become and remain effective for a
         period of time required for the disposition of such securities by the
         holders thereof;

                  (b) 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 Securities
         Act with respect to the sale or other disposition of all securities
         covered by such Registration Statement until the earlier of such time
         as all of such securities have been disposed of in a public offering or
         the expiration of 180 days;

                  (c) furnish to any selling security holders such number of
         copies of a summary prospectus or other prospectus, including a
         preliminary prospectus, in conformity with the requirements of the
         Securities Act, and such other documents, as such selling security
         holders may reasonably request;

                  (d) use its best efforts to register or qualify the securities
         covered by such Registration Statement under such other securities or
         blue sky laws of such jurisdictions within the United States and Puerto
         Rico as each Holder of such securities shall reasonably request in
         light of such Holder's intended plan of distribution (provided,
         however, that the Company shall not be obligated to qualify as a
         foreign corporation to do business under the laws of any jurisdiction
         in which it is not then qualified or to file any general consent to
         service of process or subject itself to taxation in any such
         jurisdiction), and do such other reasonable acts and things as may be
         required of it to enable such holder to consummate the disposition in
         such jurisdiction of the securities covered by such Registration
         Statement;


                                       15
   25
                  (e) if requested by a majority (in amount of underlying and
         outstanding shares ) of the Holders of Warrants or Warrant Stock being
         included in such registration, use its best efforts to obtain from
         either a nationally recognized underwriter or investment banker or an
         underwriter or investment banker reasonably acceptable to such Holders
         a firm commitment (pursuant to an underwriting agreement in customary
         form) to underwrite the public offering of the securities covered by
         such Registration Statement;

                  (f) furnish, at the request of any holder requesting
         registration of Warrant Stock pursuant to Section 9.3, on the date that
         such shares of Warrant Stock are delivered to the underwriters for sale
         pursuant to such registration or, if such Warrant Stock is not being
         sold through underwriters, on the date that the Registration Statement
         with respect to such shares of Warrant Stock becomes effective (1) a
         copy of an opinion, dated such date, of the independent counsel
         representing the Company for the purposes of such registration,
         addressed to the underwriters, if any, and to the holders making such
         request, stating that such Registration Statement has become effective
         under the Securities Act and that (i) to the best knowledge of such
         counsel, no stop order suspending the effectiveness thereof has been
         issued and no proceedings for that purpose have been instituted or are
         pending or contemplated under the Securities Act, (ii) the Registration
         Statement, the related prospectus and each amendment or supplement
         thereto comply as to form in all material respects with the
         requirements of the Securities Act and the applicable rules and
         regulations of the Commission thereunder (except that such counsel need
         express no opinion as to financial statements and data contained
         therein), (iii) the descriptions in the Registration Statement or the
         prospectus, or any amendment or supplement thereto, of all legal
         matters and contracts and other legal documents or instruments are
         accurate and fairly present the information required to be shown and
         (iv) such counsel does not know of any legal or governmental
         proceedings, pending or contemplated, required to be described in the
         Registration Statement or prospectus, or any amendment or supplement
         thereto, which are not described as required, nor of any contracts or
         documents or instruments of a character required to be described in the
         Registration Statement or prospectus, or any amendment or supplement
         thereto, or to be filed as exhibits to the Registration Statement which
         are not described and filed or incorporated by reference as required,
         and such counsel shall also confirm that nothing has come to his
         attention to lead him to believe that either the Registration Statement
         or the prospectus, or any amendment or supplement thereto (other than
         financial material and data as to which such counsel need make no
         statement), contains any 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, in light of the circumstances in which
         made, not misleading and (2) a letter dated such date, from the
         independent certified public accountants of the Company, addressed to
         the underwriters, if any, and to the holder making such request and, if
         such accountants refuse to deliver such letter to such holder, then to
         the Company stating that they are independent certified public
         accountants within the meaning of the Securities Act and that, in the
         opinion of such accountants, the financial statements and other
         financial data of the Company included in the Registration Statement or
         the prospectus, or any amendment or supplement thereto, comply as to
         form in all material respects with the applicable accounting
         requirements of


                                       16
   26
         the Securities Act. Such opinion of counsel shall additionally
         cover such other legal matters with respect to the registration in
         respect of which such opinion is being given as the holders holding a
         majority of the Warrant Stock so registered may reasonably request.
         Such letter from the independent certified public accountants shall
         additionally cover such other financial matters (including information
         as to the period ending not more than five Business Days prior to the
         date of such letter) with respect to the registration in respect of
         which such letter is being given as the holders holding a majority of
         the Warrant Stock being so registered may reasonably request;

                  (g) enter into customary agreements (including an underwriting
         agreement in customary form) and take such other actions as are
         reasonably required in order to expedite or facilitate the disposition
         of the securities covered by the Registration Statement;

                  (h) otherwise use its best efforts to comply with all
         applicable rules and regulations of the Commission, and make available
         to its security holders, as soon as reasonably practicable, but not
         later than 18 months after the effective date of the Registration
         Statement, an earnings statement covering the period of at least 12
         months beginning with the first full month after the effective date of
         such Registration Statement, which earnings statements shall satisfy
         the provisions of Section 11(a) of the Securities Act; and

                  (i) notify each selling Holder of such registrable securities,
         at any time when a prospectus relating thereto is required to be
         delivered under the Securities Act, of the occurrence of an event
         requiring the preparation of a supplement or amendment to such
         prospectus so that, as thereafter delivered to the purchasers of the
         securities covered by the Registration Statement, such prospectus will
         not contain an untrue statement of a material fact or omit to state any
         material fact required to be stated therein or necessary to make the
         statements therein not misleading and promptly make available to each
         selling Holder any such supplement or amendment.

It shall be a condition precedent to the obligation of the Company to take any
action pursuant to this Section 9 in respect of the securities which are to be
registered at the request of any holder of Warrants or Warrant Stock that such
holder shall furnish to the Company such information regarding the securities
held by such holder and the intended method of disposition thereof as the
Company shall reasonably request and as shall be required in connection with the
action taken by the Company. Each selling Holder agrees that, upon receipt of
any notice from the Company of the happening of any event of the kind described
in Section 9.5(i) hereof, such selling Holder will forthwith discontinue
disposition of Registrable Securities pursuant to the Registration Statement
until such selling Holder's receipt of the copies of the supplemented or amended
prospectus contemplated by Section 9.5(i) hereof, and, if so directed by the
Company such selling Holder will deliver to the Company all copies, other than
permanent file copies then in such selling Holder's possession, of the most
recent prospectus covering the securities covered by Registration Statement at
the time of receipt of such notice. If the Company shall give such notice, the
Company shall extend the period during which such Registration Statement shall
be maintained


                                       17
   27
effective by the number of days during the period from and including the date of
the giving of notice pursuant to Section 9.5(i) hereof to the date when the
Company shall make available to the selling Holders of the securities covered by
such Registration Statement a prospectus supplemented or amended to conform with
the requirements of Section 9.5(i) hereof.

         9.6 Expenses; Limitations on Registration. All expenses incurred in
complying with Section 9, including, without limitation, all registration and
filing fees (including all expenses incident to filing with the NASD, printing
expenses, fees and disbursements of counsel for the Company, the reasonable fees
and expenses of one counsel for the selling security holders (selected by those
holding a majority of the shares being registered), expenses of any special
audits incident to or required by any such registration and expenses of
complying with the securities or blue sky laws of any jurisdictions pursuant to
Section 9.5(d)), shall be paid by the Company, except that the Company shall not
be liable for any fees, discounts or commissions to any underwriter or any fees
or disbursements of counsel for any underwriter in respect of the securities
sold by such holder of Warrant Stock.

         9.7 Indemnification.

                  (a) In the event of any registration of any of the Warrant
         Stock under the Securities Act pursuant to this Section 9, the Company
         shall indemnify and hold harmless the holder of such Warrant Stock,
         such holder's directors and officers and each other Person (including
         each underwriter) who participated in the offering of such Warrant
         Stock and each other Person, if any, who controls such holder or such
         participating Person within the meaning of the Securities Act, against
         any losses, claims, damages or liabilities, joint or several, to which
         such holder or any such director or officer or participating Person or
         controlling Person may become subject under the Securities Act or any
         other statute or at common law, insofar as such losses, claims, damages
         or liabilities (or actions in respect thereof) arise out of or are
         based upon (i) any alleged untrue statement of any material fact
         contained, on the effective date thereof, in any Registration Statement
         under which such securities were registered under the Securities Act,
         any preliminary prospectus or final prospectus contained therein or any
         amendment or supplement thereto or (ii) any alleged omission to state
         therein a material fact required to be stated therein or necessary to
         make the statements therein not misleading, and shall reimburse such
         Holder or such director, officer or participating Person or controlling
         Person for any legal or any other expenses reasonably incurred by such
         holder or such director, officer or participating Person or controlling
         Person in connection with investigating or defending any such loss,
         claim, damage, liability or action; provided, however, that the Company
         shall not be liable in any such case to the extent that any such loss,
         claim, damage or liability arises out of or is based upon any alleged
         untrue statement or alleged omission made in such Registration
         Statement, preliminary prospectus, prospectus or amendment or
         supplement in reliance upon and in conformity with written information
         furnished to the Company by such holder specifically for use therein.
         Such indemnity shall remain in full force and effect regardless of any
         investigation made by or on behalf of such holder or such director,


                                       18
   28
         officer or participating Person or controlling Person and shall
         survive the transfer of such securities by such holder.

              (b)     (i) Each holder of any Warrant Stock, by acceptance
         thereof, agrees to indemnify and hold harmless the Company, its
         directors and officers and each other Person, if any, who controls the
         Company within the meaning of the Securities Act against any losses,
         claims, damages or liabilities, joint or several, to which the Company
         or any such director or officer or any such Person may become subject
         under the Securities Act or any other statute or at common law, insofar
         as such losses, claims, damages or liabilities (or actions in respect
         thereof) arise out of or are based upon information in writing provided
         to the Company by such Holder of such Warrant Stock, which information
         is contained, on the effective date thereof, in any Registration
         Statement under which securities were registered under the Securities
         Act at the request of such holder, any preliminary prospectus or final
         prospectus contained therein, or any amendment or supplement thereto;
         provided, however, that such Holder's obligation under this Section
         9.7(b) to indemnify and hold harmless the Company shall in no event
         exceed the damage attributable solely to the inclusion of such written
         information in such Registration Statement, preliminary prospectus,
         final prospectus, or amendment or supplement suffered by the Person or
         Persons whose claims gave rise to such losses, claims, damages or
         liabilities.

                      (ii) The Company shall be entitled to receive indemnities 
         from underwriters, selling brokers, dealer managers and similar
         securities industry professionals participating in the distribution, to
         the same extent as provided above with respect to information furnished
         in writing by persons specifically for inclusion in any prospectus or
         Registration Statement.

              (c)     (i) If the indemnification provided for in this Section 9
         from the indemnifying party is unavailable to an indemnified party
         hereunder in respect of any losses, claims, damages, liabilities or
         expenses referred to herein, then the indemnifying party, in lieu of
         indemnifying such indemnified party, shall contribute to the amount
         paid or payable by such indemnified party as a result of such losses,
         claims, damages, liabilities or expenses in such proportion as is
         appropriate to reflect the relative fault of the indemnifying party and
         indemnified parties in connection with the actions which resulted in
         such losses, claims, damages, liabilities or expenses, as well as any
         other relevant equitable considerations. The relative fault of such
         indemnifying party and indemnified parties shall be determined by
         reference to, among other things, whether any action in question,
         including any untrue or alleged untrue statement of a material fact or
         omission or alleged omission to state a material fact, has been made
         by, or relates to information supplied by, such indemnifying party or
         indemnified parties, and the parties' relative intent, knowledge,
         access to information and opportunity to correct or prevent such
         action. The amount paid or payable by a party under this Section 9 as a
         result of the losses, claims, damages, liabilities and expenses
         referred to above shall be deemed to include any


                                       19
   29
         legal or other fees or expenses reasonably incurred by such party in
         connection with any investigation or proceeding.

                            (ii) The parties hereto agree that it would not be
                   just and equitable if contribution pursuant to this Section
                   9.7(c) were determined by pro rata allocation or by any other
                   method of allocation which does not take account the
                   equitable considerations referred to in paragraph (i) of this
                   Section 9.7(c). No Person guilty of fraudulent
                   misrepresentation (within the meaning of Section 11(f) of the
                   Securities Act) shall be entitled to contribution from any
                   Person who was not guilty of such fraudulent
                   misrepresentation.

         9.8 Termination of Restrictions. Notwithstanding the provisions of this
Section 9, the restrictions imposed by this Section 9 upon the transferability
after the Exercise Date of the Warrants and the Warrant Stock and the legend
requirements of Section 9.1 shall terminate as to any particular Warrant or
share of Warrant Stock (i) when and so long as such security shall have been
effectively registered under the Securities Act and disposed of pursuant thereto
or (ii) when the Company shall have received an opinion of counsel reasonably
satisfactory to it that such legend is not required in order to ensure
compliance with the Securities Act. Whenever after the Exercise Date the
restrictions imposed by Section 9 shall terminate as to this Warrant, as
hereinabove provided, the Holder hereof shall be entitled to receive from the
Company, at the expense of the Company, a new Warrant bearing the following
legend in place of the restrictive legend set forth hereon:

                   "THE RESTRICTIONS ON TRANSFERABILITY OF THE
                   WITHIN WARRANT CONTAINED IN SECTION 9 HEREOF
                   TERMINATED ON ____________,_____,  AND ARE OF NO
                   FURTHER FORCE AND EFFECT."

All Warrants thereafter issued upon registration of transfer, division or
combination of, or in substitution for, any Warrant or Warrants entitled to bear
such legend shall have a similar legend endorsed thereon. Whenever the
restrictions imposed by this Section shall terminate as to any share of Warrant
Stock, as hereinabove provided, the holder thereof shall be entitled to receive
from the Company, at the Company's expense, a new certificate representing such
Warrant Stock not bearing the restrictive legend set forth in Section 9.1(a).

         9.9 Listing on Securities Exchange. If and so long as the Company shall
list any shares of Common Stock on any securities exchange (including Nasdaq),
it will, at its expense, list thereon, maintain and, when necessary, increase
such listing of, all shares of Common Stock issued or, to the extent permissible
under the applicable securities exchange rules, issuable upon the exercise of
this Warrant so long as any shares of Common Stock shall be so listed during any
such Exercise Period.

         9.10 Certain Limitations on Registration Rights. Notwithstanding the
other provisions of Section 9:





                                       20
   30
                           (i) the Company shall not be obligated to register
                  the Warrant Stock of any Holder if (x) in the opinion of
                  counsel to the Company reasonably satisfactory to the Holder
                  and its counsel (or, if the Holder has engaged an investment
                  banking firm, to such investment banking firm and its
                  counsel), the sale or other disposition of such Holder's
                  Warrant Stock, in the manner proposed by such Holder (or by
                  such investment banking firm), may be effected without
                  registering such Warrant Stock under the Securities Act, and
                  (y) the failure of the Company to register such Warrant Stock
                  will not result in a reduction in the net proceeds to be
                  received by such Holder in connection with such sale or other
                  disposition; and

                           (ii) the Company shall not be obligated to register
                  the Warrant Stock of any Holder pursuant to Section 9.3, if
                  the Company has had a registration statement, under which such
                  Holder had a right to have its Warrant Stock included pursuant
                  to Sections 9.3 or 9.4, declared effective within one year
                  prior to the date of the request pursuant to Section 9.3;
                  provided, however, that if any Holder elected to have shares
                  of its Warrant Stock included under such registration
                  statement but some or all of such shares were excluded
                  pursuant to the provisions of Section 9.3 or Section 9.4, then
                  such one-year period shall be reduced to six months.

         9.11 Selection of Managing Underwriters. The managing underwriter or
underwriters for any offering of Warrant Stock to be registered pursuant to
Section 9.3 shall be selected by the Company and shall be reasonably acceptable
to the Holders of a majority of the shares being so registered (other than any
shares being registered pursuant to Section 9.4).

10. SUPPLYING INFORMATION

         The Company shall cooperate with each Holder of a Warrant and each
holder of Warrant Stock in supplying such information as may be reasonably
necessary for such Holder to complete and file any information reporting forms
presently or hereafter required by the Commission as a condition to the
availability of an exemption from the Securities Act for the sale of any Warrant
or Restricted Common Stock.

11. LOSS OR MUTILATION

         Upon receipt by the Company from any Holder of evidence reasonably
satisfactory to it of the ownership of and the loss, theft, destruction or
mutilation of this Warrant and indemnity reasonably satisfactory to it (it being
understood that the written agreement of GE Medical shall be sufficient
indemnity) and in case of mutilation upon surrender and cancellation hereof, the
Company will execute and deliver in lieu hereof a new Warrant of like tenor to
such Holder; provided, in the case of mutilation, no indemnity shall be required
if this Warrant in identifiable form is surrendered to the Company for
cancellation.


                                       21
   31
12. OFFICE OF THE COMPANY

         As long as any of the Warrants remain outstanding, the Company shall
maintain an office or agency (which shall initially be the principal executive
offices of the Company) where the Warrants may be presented for exercise,
registration of transfer, division or combination as provided in this Warrant.
The Company shall notify Holder in writing prior to any change of the address of
the office at which the Warrants may be presented.

13. FINANCIAL AND BUSINESS INFORMATION

         13.1 Information. Except during any period when the Company is a Public
Company (as hereinafter defined), it will deliver to each Holder, as soon as
practicable after the end of each month, and in any event within 30 days
thereafter, and after the end of each quarter and in any event within 45 days
thereafter, one copy of an unaudited consolidated balance sheet, statement of
income and statement of cash flow of the Company and its Subsidiaries for such
period setting forth in each case in comparative form the figures for the
corresponding periods in the previous fiscal years. Such financial statements
shall be prepared by the Company in accordance with GAAP and shall be
accompanied by the certification of the Company's chief executive officer or
chief financial officer that such financial statements are complete and correct
and present fairly the consolidated financial position, results of operations
and cash flow of the Company and its Subsidiaries as at the end of such period
and for such year-to-date period, as the case may be.

                  For purposes of this Section 13, the term "Public Company"
shall mean a company (i) that is subject to the reporting requirements of
Section 15(d) of the Exchange Act, or (ii) any of whose securities are
registered pursuant to Section 12(b) or 12(g) of the Exchange Act.

         13.2 Annual Information. Except during any period when the Company is a
Public Company, it will deliver to each Holder as soon as practicable after the
end of each fiscal year of the Company, and in any event within 90 days
thereafter, one copy of:

                           (i) an audited consolidated balance sheet of the
                  Company and its Subsidiaries as at the end of such year, and

                           (ii) audited consolidated statements of income and
                  retained earnings and cash flow of the Company and its
                  Subsidiaries for such year;

setting forth in each case in comparative form the figures for the corresponding
periods in the previous fiscal year; all prepared in accordance with GAAP, and
which audited financial statements shall be accompanied by (i) an opinion
thereon of the independent certified public accountants regularly retained by
the Company, or any other firm of independent certified public accountants of
recognized national standing selected by the Company and (ii) a report of such
independent certified public accountants confirming, or describing the agreed
upon procedures applied to the Company's schedules computing, any adjustment,
made pursuant to Section 4


                                       22
   32
during such year. Such report shall include a description of any errors
determined by the accountants in the Company's schedules.

         13.3 Filings. The Company will file on or before the required date all
required regular or periodic reports (pursuant to the Exchange Act) with the
Commission and will deliver to Holder promptly upon their becoming available one
copy of each report, notice or proxy statement sent by the Company to its
stockholders generally, and of each regular or periodic report (pursuant to the
Exchange Act) and any Registration Statement, prospectus or written
communication (other than transmittal letters) pursuant to the Securities Act,
filed by the Company with (i) the Commission or (ii) any securities exchange on
which shares of Common Stock are listed (provided, however, that the Company may
request filing extensions pursuant to Rule 12b-25 under the Securities and
Exchange Act of 1934, as amended).

14. APPRAISAL

         The determination of the Appraised Value per share of Common Stock
shall be made by an investment banking firm of nationally recognized standing
selected by the Company and acceptable to the Holder. If the investment banking
firm selected by the Company is not acceptable to the Holder and the Company and
the Holder cannot agree on a mutually acceptable investment banking firm, then
the Holder and the Company shall each choose one such investment banking firm
and the respective chosen firms shall agree on another investment banking firm
which shall make the determination. The Company shall retain, at its sole cost,
such investment banking firm as may be necessary for the determination of
Appraised Value required by the terms of this Warrant.

15. LIMITATION OF LIABILITY

         No provision hereof, in the absence of affirmative action by the Holder
to purchase shares of Common Stock, and no enumeration herein of the rights or
privileges of Holder hereof, shall give rise to any liability of such Holder for
the purchase price of any Common Stock or as a stockholder of the Company,
whether such liability is asserted by the Company or by creditors of the
Company.

16. MISCELLANEOUS

         16.1 Nonwaiver and Expenses. No course of dealing or any delay or
failure to exercise any right hereunder on the part of the Company shall operate
as a waiver of such right or otherwise prejudice the Company's rights, powers or
remedies. No course of dealing or any delay or failure to exercise any right
hereunder on the part of the Holder shall operate as a waiver of such right or
otherwise prejudice the Holder's rights, powers or remedies. If the Company
fails to make, when due, any payments provided for hereunder, or fails to comply
with any other provision of this Warrant, the Company shall pay to the Holder
such amounts as shall be sufficient to cover any costs and expenses including,
but not limited to, reasonable attorneys' fees, including


                                       23
   33
those of appellate proceedings, incurred by the Holder in collecting any amounts
due pursuant hereto or in otherwise enforcing any of its rights, powers or
remedies hereunder.

         16.2 Notice Generally. Any notice, demand, request, consent, approval,
declaration, delivery or other communication hereunder to be made pursuant to
the provisions of this Warrant shall be sufficiently given or made if in writing
and either delivered (i) in person with receipt acknowledged, (ii) by facsimile
transmission, with receipt electronically confirmed during normal business hours
of recipient, and that is confirmed by sending, no later than one (1) Business
Day following such transmission, a copy of such facsimile, by registered or
certified mail, return receipt requested, postage prepaid, or (iii) by
registered or certified mail, return receipt requested, postage prepaid,
addressed as follows:

                  (a) If to any Holder or holder of Warrant Stock, at its last
         known address or facsimile transmission number appearing on the books
         of the Company maintained for such purpose.

                  (b) If to the Company at

                      Medical Imaging Centers of America, Inc.
                      9444 Farnham Street, Suite 100
                      San Diego, California 92123
                      (619) 560-0046

or at such other address as may be substituted by notice given as herein
provided. The giving of any notice required hereunder may be waived in writing
by the party entitled to receive such notice. Every notice, demand, request,
consent, approval declaration, delivery or other communication hereunder shall
be deemed to have been duly given or served on the date on which personally
delivered, with receipt acknowledged or sent by facsimile with receipt
electronically confirmed during normal business hours of recipient, or three
Business Days after the same shall have been deposited in the United States
mail. Failure or delay in delivering copies of any notice, demand, request,
approval, declaration, delivery or other communication to the person designated
above to receive a copy shall in no way adversely affect the effectiveness of
such notice, demand, request, approval, declaration, delivery or other
communication.

         16.3 Indemnification. In addition to the indemnities provided in
Section 9.7 (as to the subject matter of which the indemnifications, including
limitations, therein, shall control), the Company agrees to indemnify and hold
harmless the Holder, its officers, directors, employees, agents and attorneys
from and against any liabilities, obligations, losses, damages, penalties,
actions, judgments, suits, claims, costs, attorneys' fees, expenses and
disbursements of any kind which may be imposed upon, incurred by or asserted
against Holder relating to or arising out of (i) Holder's exercise of this
Warrant or ownership of any shares of Warrant Stock issued in connection
therewith or (ii) any litigation to which the Holder is made a party in its
capacity as a stockholder or warrant holder of the Company; provided, however,
that the Company will not be liable hereunder to the extent that any
liabilities, obligations, losses, damages, penalties,


                                       24
   34
actions, judgments, suits, claims, costs, attorneys' fees, expenses or
disbursements are found in a final nonappealable judgment by a court to have
resulted from either (i) the Holder's gross negligence or willful misconduct or
(ii) actions or omissions taken or not taken by the Holder in any capacity other
than as a stockholder or warrant holder of the Company.

         16.4 Remedies. Each holder of Warrant and Warrant Stock, in addition to
being entitled to exercise all rights granted by law, including recovery of
damages, will be entitled to specific performance of its rights under Section 9
of this Warrant. The Company agrees that monetary damages would not be adequate
compensation for any loss incurred by reason of a breach by it of the provisions
of Section 9 of this Warrant and hereby agrees to waive the defense in any
action for specific performance that a remedy at law would be adequate.

         16.5 Successors and Assigns. Subject to the provisions of Sections 3.1
and 9, this Warrant and the rights evidenced hereby shall inure to the benefit
of and be binding upon the successors of the Company and the successors and
assigns of Holder. The provisions of this Warrant are intended to be for the
benefit of all Holders from time to time of this Warrant, and shall be
enforceable by any such Holder.

         16.6 Amendment. This Warrant and all other Warrants may be modified or
amended or the provisions hereof waived with the written consent of the Company
and the Holder, provided that no such Warrant may be modified or amended to
reduce the number of shares of Common Stock for which such Warrant is
exercisable or to increase the price at which such shares may be purchased upon
exercise of such Warrant (before giving effect to any adjustment as provided
therein) without the prior written consent of the Holder thereof.

         16.7 Severability. Wherever possible, each provision of this Warrant
shall be interpreted in such manner as to be effective and valid under
applicable law, but if any provision of this Warrant shall be prohibited by or
invalid under applicable law, such provision shall be ineffective to the extent
of such prohibition or invalidity, without invalidating the remainder of such
provision or the remaining provisions of this Warrant.

         16.8 Headings. The headings used in this Warrant are for the
convenience of reference only and shall not, for any purpose, be deemed a part
of this Warrant.

         16.9 Governing Law; Service of Process. In all respects, including all
matters of construction, validity and performance, this Agreement and the
obligations arising hereunder shall be governed by, and construed and enforced
in accordance with, the laws of the state of the Company's incorporation
applicable to contracts made and performed in such state, without regard to the
principles thereof regarding conflict of laws, and any applicable laws of the
United States of America. Service of process on the Company or Holder in any
action arising out of or relating to this Agreement shall be effective if mailed
to such party in accordance with the procedures and requirements set forth in
Section 16.2.


                                       25
   35
         16.10 MUTUAL WAIVER OF JURY TRIAL. BECAUSE DISPUTES ARISING IN
CONNECTION WITH COMPLEX FINANCIAL TRANSACTIONS ARE MOST QUICKLY AND ECONOMICALLY
RESOLVED BY AN EXPERIENCED AND EXPERT PERSON AND THE COMPANY AND HOLDER HEREOF
WISH APPLICABLE STATE AND FEDERAL LAWS TO APPLY (RATHER THAN ARBITRATION RULES),
THE COMPANY AND HOLDER HEREOF DESIRE THAT THEIR DISPUTES BE RESOLVED BY A JUDGE
APPLYING SUCH APPLICABLE LAWS. THEREFORE, TO ACHIEVE THE BEST COMBINATION OF THE
BENEFITS OF THE JUDICIAL SYSTEM AND OF ARBITRATION, THE COMPANY AND HOLDER
HEREOF WAIVE ALL RIGHT TO TRIAL BY JURY IN ANY ACTION.

         IN WITNESS WHEREOF, the Company has caused this Warrant to be duly
executed and its corporate seal to be impressed hereon and attested by its
Secretary or an Assistant Secretary.

                                       MEDICAL IMAGING CENTERS OF AMERICA, INC.

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

Attest:

- ------------------------
Title:


                                       26
   36
                                    EXHIBIT A

                                SUBSCRIPTION FORM

                 (To be executed only upon exercise of Warrant)

         The undersigned registered owner of the attached Warrant irrevocably
exercises such Warrant for the purchase of __________________________ shares of
Common Stock of Medical Imaging Centers of America, Inc. and herewith makes
payment therefor, all at the price and on the terms and conditions specified in
such Warrant and requests that certificates for the shares of Common Stock
hereby purchased (and any securities or other property issuable upon such
exercise) be issued in the name of and delivered to __________________________
whose address is __________________________ and, if such shares of Common Stock
shall not include all of the shares of Common Stock issuable as provided in such
Warrant, that a new Warrant of like tenor and date for the balance of the shares
of Common Stock issuable hereunder be delivered to the undersigned.

                                               --------------------------------
                                               Name of Registered Owner)

                                               --------------------------------
                                               (Signature of Registered Owner)

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

                                               --------------------------------
                                               (City)      (State) (Zip Code)

NOTICE:             The signature on this subscription must correspond with the
                    name as written upon the face of the attached Warrant in
                    every particular, without alteration or enlargement or any
                    change whatsoever.


   37
                                    EXHIBIT B

                                 ASSIGNMENT FORM

         FOR VALUE RECEIVED the undersigned registered owner of the attached
Warrant hereby sells, assigns and transfers unto the Assignee named below all of
the rights of the undersigned under such Warrant, with respect to the number of
shares of Common Stock set forth below:

Name and Address of Assignee                   No. of Shares of
                                               Common Stock



and does hereby irrevocably constitute and appoint________________________
attorney-in-fact to register such transfer on the books of Medical Imaging
Centers of America, Inc. maintained for the purpose, with full power of
substitution in the premises.

Dated:______________                    Print Name: ______________
                                                                     
                                        Signature:  ______________
                                                                     
                                        Witness:    ______________
                                                   

NOTICE:                      The signature on this assignment must correspond
                             with the name as written upon the face of the
                             attached Warrant in every particular, without
                             alteration or enlargement or any change whatsoever.