Exhibit 4.10

                            SUBSCRIPTION AGREEMENT

To:      Cedara Software Corp.

         The undersigned (the "Purchaser") hereby irrevocably subscribes for
and agrees to purchase from Cedara Software Corp. (the "Corporation"), on the
terms and conditions set forth in this subscription agreement, 580,461 common
shares in the capital of the Corporation (the "Shares" and individually a
"Share"). Each Share will be issued at a price of US$1.503 per Share.

Conditions of Purchase

         The Purchaser acknowledges that the Corporation's obligation to sell
the Shares to the Purchaser is subject to, among other things, the conditions
that:

         (a)      the Purchaser executes and returns to the Corporation all
                  documents required by applicable legislation and The Toronto
                  Stock Exchange for delivery on behalf of the Purchaser;

         (b)      all necessary regulatory approvals being obtained by the
                  Corporation prior to the Closing;

         (c)      the sale of the Shares is exempt from the requirement to
                  file a prospectus and the requirement to deliver an offering
                  memorandum under applicable securities legislation relating
                  to the sale of the Shares or the Corporation shall have
                  received such orders, consents or approvals as may be
                  required to permit such sale without the requirement of
                  filing a prospectus or delivering an offering memorandum;
                  and

         (d)      the representations and warranties of the Purchaser remain
                  true and correct as at the Closing.

Delivery and Payment

         The Purchaser agrees that the following shall be delivered to the
Corporation prior to the Closing:

         (a)      one completed and duly signed copy of this subscription
                  agreement;

         (b)      all other documentation as may be required by applicable
                  securities legislation and The Toronto Stock Exchange,
                  including a duly completed Private Placement Questionnaire
                  and Undertaking in the form annexed hereto as Schedule "A";
                  and

         (c)      a certified cheque, bank draft or evidence of a wire
                  transfer in Canadian funds to the Corporation representing
                  the aggregate purchase price payable by the Purchaser for
                  the Shares. The entire subscription price for the Shares
                  must be paid at the time of subscription.

         Delivery of the Shares by the Corporation and payment for the Shares
by the Purchaser shall be completed at a closing (the "Closing") to be held on
the first business day following receipt of approval from the Toronto Stock
Exchange of the issuance of the Shares contemplated hereby or at such time and
place as may be mutually agreed upon by the Corporation and the Purchaser,
provided that the Closing is held no later than on the day mandated by The
Toronto Stock Exchange for the closing of the issuance of the Shares
contemplated hereby.

         The Corporation agrees that it shall deliver certificates
representing the Shares at the Closing for delivery against payment of the
subscription price. If the Purchaser chooses not to attend the Closing to
receive the Share certificates, then the Purchaser shall deliver such
certificates to the undersigned at the address set forth below promptly after
the Closing.

Purchaser's Representations and Warranties

         The Purchaser represents, warrants and covenants to the Corporation
that:

         (a)      it (A) is an Accredited Investor, as defined in Paragraph 6
                  of Schedule "B" hereto, and (B) is aware that any sale of
                  Shares to it will be made in reliance on a private placement
                  exemption from registration under the United States
                  Securities Act of 1933, as amended (the "U.S. Securities
                  Act");

         (b)      it is purchasing the Shares for its own account and not with
                  a view to any resale, distribution or other disposition of
                  the Shares in violation of the United States federal, state
                  or any other securities laws;

         (c)      if it decides to offer, sell or otherwise transfer any of
                  the Shares it will not offer, sell or otherwise transfer any
                  of such securities, directly or indirectly, unless (i) the
                  sale is to the Corporation; or (ii) the sale is made outside
                  the United States in compliance with the requirements of
                  Rule 904 of Regulation S under the U.S. Securities Act; or
                  (iii) the sale is made within the United States pursuant to
                  the exemption from registration under the U.S. Securities
                  Act provided by Rule 144 thereunder, if available, and in
                  compliance with any applicable state securities laws;

         (d)      it has such knowledge and experience in financial and
                  business matters as to be capable of evaluating the merits
                  and risks of its investment in the Shares and is able to
                  bear the economic risks of such investment;

         (e)      it has had access to such information concerning the
                  Corporation as it has considered necessary in connection
                  with its investment decision to acquire the Shares,
                  including without limitation the information available
                  through SEDAR, (www.sedar.com) which the Corporation is
                  required to file as a consequence of being publicly listed
                  in Canada;

         (f)      it consents to the Corporation making a notification on its
                  records or giving instructions to any transfer agent of the
                  Shares in order to implement the restriction on transfer set
                  forth and described herein;

         (g)      the address set forth below is the true and correct address
                  of the place of business of the Purchaser at which it
                  received and accepted the offer to purchase the Shares;

         (h)      it has been independently advised as to and is aware of the
                  restrictions with respect to trading in the Shares pursuant
                  to the securities laws, regulations, rules, published policy
                  statements, rulings and orders of securities regulatory
                  authorities applicable to the Corporation or the Purchaser's
                  purchase hereunder (the "Securities Laws") and any
                  applicable stock exchanges;

         (i)      the Shares may not be sold in Canada or to Canadian
                  residents unless, in addition to the requirements of
                  paragraph (c)(ii), if applicable, the sale is made pursuant
                  to an available exemption from the prospectus and
                  registration requirements under the securities legislation
                  in the Canadian purchaser's province or territory of
                  residence or the required "hold" period has expired since
                  the acquisition by the Purchaser of the securities to be
                  sold;

         (j)      the Purchaser, and any purchaser for whom the Purchaser is
                  acting, will comply with all applicable Securities Laws and
                  with the rules and policies of any applicable stock
                  exchanges concerning the purchase of, the holding of and
                  resale restrictions on the Shares;

         (k)      if required by applicable Securities Laws or order of a
                  securities regulatory authority, stock exchange or other
                  regulatory authority, the Purchaser will execute, deliver,
                  file and otherwise assist the Corporation in filing such
                  reports, undertakings and other documents with respect to
                  the issuance of the Shares as may be required;

         (l)      the Purchaser's place of business is in the jurisdiction set
                  forth in its address in this subscription agreement;

         (m)      the Purchaser is capable of assessing its proposed
                  investment hereunder as a result of the Purchaser's
                  financial or investment experience, understands that an
                  investment in the Corporation involves a high risk and a
                  substantial risk of loss, and is able to bear the economic
                  loss of its investment;

         (n)      this subscription agreement has been duly and validly
                  authorized, executed and delivered by and upon acceptance by
                  the Corporation will constitute a legal, valid and binding
                  agreement of the Purchaser enforceable in accordance with
                  its terms;

         (o)      the Corporation has not made any representation to the
                  Purchaser regarding the intention of the Corporation to list
                  the Shares on any stock exchange or to make arrangements to
                  have the Shares quoted for trading;

         (p)      it is responsible for obtaining such legal advice as it
                  considers necessary in connection with the execution,
                  delivery and performance by it of this subscription
                  agreement and the transactions contemplated herein and it
                  represents and warrants that such execution, delivery and
                  performance shall not contravene any applicable laws of the
                  jurisdiction in which it is resident; and

         (q)      the purchase of the Shares by the Purchaser hereunder is not
                  a transaction in which any director or officer of the
                  Corporation, or any beneficial owner of securities carrying
                  more than 10% of the voting rights attaching to all
                  outstanding voting securities of the Corporation, has a
                  direct or indirect beneficial interest.

Purchaser's Acknowledgements

         The Purchaser acknowledges that:

         (a)      none of the Shares have been, or will be, registered under
                  the U.S. Securities Act or the securities laws of any state,
                  and that the Shares are being offered in a transaction not
                  requiring registration under the U.S. Securities Act;

         (b)      no agency, governmental authority, regulatory body, stock
                  exchange or other entity (including, without limitation, the
                  United States Securities and Exchange Commission or any
                  state securities commission) has made any finding or
                  determination as to the merit for investment of, nor have
                  any such agencies or governmental authorities made any
                  recommendation or endorsement with respect to the Shares;

         (c)      the purchase of the Shares has not been made through, or as
                  a result of, and the distribution of the Shares is not being
                  accompanied by, a general solicitation or advertisement
                  including articles, notices or other communications
                  published in any newspaper, magazine or similar media or
                  broadcast over radio or television, or any seminar or
                  meeting whose attendees have been invited by general
                  solicitation or general advertising;

         (d)      the Shares are being offered for sale only on a "private
                  placement" basis;

         (e)      the representations and warranties and covenants contained
                  in this subscription agreement are made by it with the
                  intent that they may be relied upon by the Corporation in
                  determining its eligibility to purchase the Shares, and the
                  Purchaser hereby agrees to indemnify the Corporation against
                  all losses, claims, costs, expenses and damages or
                  liabilities which they may suffer or incur caused or arising
                  from their reliance thereon. The Purchaser further agrees
                  that by accepting the Shares the Purchaser shall be
                  representing and warranting that the foregoing
                  representations and warranties are true as at the Closing
                  with the same force and effect as if they had been made by
                  the Purchaser at the Closing and that they shall survive the
                  purchase by the Purchaser of the Shares and shall continue
                  in full force and effect notwithstanding any subsequent
                  disposition by it of the Shares;

         (f)      the sale and delivery of the Shares to the Purchaser is
                  conditional upon such sale being exempt, under applicable
                  Securities Laws or upon the issuance of such orders,
                  consents or approvals as may be required to permit such sale
                  without the requirement of filing a prospectus or delivering
                  an offering memorandum, from the requirement to file a
                  prospectus and the requirement to deliver an offering
                  memorandum;

         (g)      upon the original issuance thereof, and until such time as
                  the same is no longer required under applicable requirements
                  of the U.S. Securities Act or applicable state securities
                  laws, certificates representing the Shares, and all
                  certificates issued in exchange therefor or in substitution
                  thereof, shall bear the following legend:

                           "THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN
                           REGISTERED UNDER THE UNITED STATES SECURITIES ACT
                           OF 1933 AS AMENDED (THE "U.S. SECURITIES ACT"), AND
                           MAY BE OFFERED, SOLD OR OTHERWISE TRANSFERRED ONLY
                           (A) TO THE COMPANY, (B) OUTSIDE THE UNITED STATES
                           IN ACCORDANCE WITH RULE 904 OF REGULATION S UNDER
                           THE U.S. SECURITIES ACT, OR (C) WITHIN THE UNITED
                           STATES PURSUANT TO THE EXEMPTION FROM REGISTRATION
                           UNDER THE U.S. SECURITIES ACT PROVIDED BY RULE 144
                           THEREUNDER, IF AVAILABLE, AND IN COMPLIANCE WITH
                           ANY APPLICABLE STATE SECURITIES LAWS."

                           "THE PRESENCE OF THIS LEGEND MAY IMPAIR THE ABILITY
                           OF THE HOLDER HEREOF TO EFFECT GOOD DELIVERY OF THE
                           SECURITIES REPRESENTED HEREBY ON A CANADIAN STOCK
                           EXCHANGE. PROVIDED THAT THE COMPANY IS A "FOREIGN
                           ISSUER" WITHIN THE MEANING OF REGULATION S AT THE
                           TIME OF SALE, A CERTIFICATE WITHOUT A LEGEND MAY BE
                           OBTAINED FROM THE REGISTRAR AND TRANSFER AGENT IN
                           CONNECTION WITH A SALE OF THE SECURITIES
                           REPRESENTED HEREBY UPON DELIVERY OF THIS
                           CERTIFICATE AND AN EXECUTED DECLARATION, IN A FORM
                           SATISFACTORY TO THE REGISTRAR AND TRANSFER AGENT
                           AND THE COMPANY, TO THE EFFECT THAT SUCH SALE IS
                           BEING MADE IN ACCORDANCE WITH RULE 904 OF
                           REGULATION S UNDER THE U.S. SECURITIES ACT."

         provided, that if the Shares are being sold outside the United States
         in compliance with the requirements of Rule 904 of Regulation S under
         the U.S. Securities Act, and provided that the Corporation is a
         "foreign issuer" within the meaning of Regulation S at the time of
         sale, the legends may be removed by providing a declaration to the
         registrar and transfer agent, to the following effect (or as the
         Corporation may prescribe from time to time):

                           "The undersigned (A) acknowledges that the sale of
                           the securities of Cedara Software Corp. (the
                           "Company") to which this declaration relates is
                           being made in reliance on Rule 904 of Regulation S
                           under the United States Securities Act of 1933, as
                           amended (the "U.S. Securities Act") and (B)
                           certifies that (1) the undersigned is not an
                           affiliate of the Company as that term is defined in
                           the U.S. Securities Act, (2) the offer of such
                           securities was not made to a person in the United
                           States and either, (a) at the time the buy order
                           was originated, the buyer was outside the United
                           States, or the seller and any person acting on its
                           behalf reasonably believe that the buyer was
                           outside the United States or (b) the transaction
                           was executed on or through the facilities of The
                           Toronto Stock Exchange and neither the seller nor
                           any person acting on its behalf knows that the
                           transaction has been prearranged with a buyer in
                           the United States, (3) neither the seller nor any
                           affiliate of the seller nor any person acting on
                           their behalf has engaged or will engage in any
                           directed selling efforts in the United States in
                           connection with the offer and sale of such
                           securities, (4) the sale is bona fide and not for
                           the purpose of "washing off" the resale
                           restrictions imposed because the securities are
                           "restricted securities" (as such term is defined in
                           Rule 144(a)(3) under the U.S. Securities Act), (5)
                           the seller does not intend to replace the
                           securities sold in reliance on Rule 904 of the U.S.
                           Securities Act with fungible unrestricted
                           securities, and (6) the contemplated sale is not a
                           transaction, or part of a series of transactions
                           which, although in technical compliance with
                           Regulation S, is part of a plan or scheme to evade
                           the registration provisions of the U.S. Securities
                           Act. Terms used herein have the meanings given to
                           them by Regulation S."

         and, provided further, that if any such Shares are being sold
         pursuant to Rule 144 under the U.S. Securities Act, the legend may be
         removed by delivery to the registrar and transfer agent of an opinion
         of counsel of recognized standing reasonably satisfactory to the
         Corporation, that such legend is no longer required under applicable
         requirements of the U.S. Securities Act or state securities laws.

General

         Each of the Corporation and the Purchaser acknowledges that:

         (a)      time shall, in all respects, be of the essence hereof;

         (b)      all references herein to "US$" are to lawful money of the
                  United States;

         (c)      the headings contained herein are for convenience only and
                  shall not affect the meaning or interpretation hereof;

         (d)      this subscription agreement constitutes the only agreement
                  between the parties with respect to the subject matter
                  hereof and shall supersede any and all prior negotiations
                  and understandings. This subscription agreement may be
                  amended or modified in any respect by written instrument
                  only;

         (e)      the terms and provisions of this subscription agreement
                  shall be binding upon and enure to the benefit of the
                  Purchaser and the Corporation and their respective
                  successors and assigns; provided that, except as herein
                  provided, this subscription agreement shall not be
                  assignable by any party without the written consent of the
                  others;

         (f)      the Corporation shall be entitled to rely on delivery of a
                  facsimile copy of this executed subscription agreement, and
                  acceptance by the Corporation of such facsimile shall be
                  legally effective to create a valid and binding agreement
                  between the Purchaser and the Corporation in accordance with
                  the terms hereof; and

         (g)      this agreement shall be governed by and construed in
                  accordance with the laws of the Province of Ontario and the
                  laws of Canada applicable therein.

Subscription Particulars

         (a)      The aggregate number of Shares being subscribed for is
                  580,461

         (b)      The aggregate price of the Shares being subscribed for is
                  US$1.503

         (c)      The Shares are to be registered in the name of:

                                    Analogic Corporation
                                    8 Centennial Drive
                                    Peabody, MA 01960

         (d)      The certificate representing the Shares is to be delivered
                  to:

                  John J. Millerick, Senior Vice-President and Chief
                  Financial Officer

                  at its office at:

                                    Analogic Corporation
                                    8 Centennial Drive
                                    Peabody, MA 01960


                                       ANALOGIC CORPORATION


                                       Per:  /s/ JOHN J. MILLERICK
                                             ---------------------------
                                             Name:  John J. Millerick
                                             Title: Senior Vice-President and
                                             Chief  Financial Officer

                                       Address of Purchaser

                                       Analogic Corporation
                                       8 Centennial Drive
                                       Peabody, MA 01960
                                       ---------------------------------

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


         This subscription agreement is accepted by the Corporation as of
April 29, 2002.

                                        CEDARA SOFTWARE CORP.


                                        Per:   /s/ FRASER SINCLAIR
                                               ---------------------------
                                               Name:  Fraser Sinclair
                                               Title: Chief Financial Officer
                                               and Corporate Secretary







                                 SCHEDULE "A"


                          THE TORONTO STOCK EXCHANGE

                PRIVATE PLACEMENT QUESTIONNAIRE AND UNDERTAKING

         To be completed by each proposed private placement purchaser of
listed securities or securities which are convertible into listed securities.

                                 QUESTIONNAIRE

1.       DESCRIPTION OF TRANSACTION

         (a)      Name of Issuer of the Securities

                  Cedara Software Corp.

         (b)      Number and Class of Securities to be Purchased

                  580,461 common shares.

         (c)      Purchase Price: US$1.503 per common share for an aggregate
                  purchase price of US$872,433

         (d)      Penalty

                  None.

2.       DETAILS OF PURCHASER

         (a)      Name of Purchaser Analogic Corporation

         (b)      Address of Purchaser 8 Centennial Drive

                                       Peabody, MA 01960

         (c)      Names and addresses of persons having a greater than 10%
                  beneficial interest in the Purchaser

                  Bernard M. Gordon Charitable Remainder Unitrust

                  8 Centennial Drive, Peabody, MA. 01960

                  T. Rowe Price, 100 East Pratt St. Baltimore, MD. 21202

3.       RELATIONSHIP TO ISSUER

         (a)      Is the Purchaser, or any person named in response to 2(c)
                  above, an insider of the issuer for the purposes of the
                  Securities Act (Ontario) (before giving effect to this
                  private placement)? If so, state the capacity in which the
                  purchaser qualifies as an insider

                                    NO
                  -------------------------------------------------------------

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

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

         (b)      If the answer to (a) is "no", are the Purchaser and the
                  issuer controlled by the same person or company? If so, give
                  details

                                    NO
                  -------------------------------------------------------------

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

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

4.       DEALINGS OF PURCHASER IN SECURITIES OF THE ISSUER

         Give details of all trading by the Purchaser, as principal, in the
securities of the issuer (other than debt securities which are not convertible
into equity securities), directly or indirectly, within the 60 days preceding
the date hereof

                                    NONE
                  -------------------------------------------------------------







                                  UNDERTAKING

TO:      The Toronto Stock Exchange

         The undersigned has subscribed for and agreed to purchase, as
principal, the securities described in Item 1 of this Private Placement
Questionnaire and Undertaking. The undersigned undertakes not to sell or
otherwise dispose of any of the said securities so purchased or any securities
derived therefrom for a period of six months from the date of the closing of
the transaction described herein or for such period as is prescribed by
applicable securities laws, whichever is longer, without the prior consent of
The Toronto Stock Exchange and any other regulatory body having jurisdiction.

DATED AT Peabody, MA. 01960                  Analogic Corporation
         -----------------------             -------------------------------
                                             (Name of Purchaser - please print)


this 29th day of April, 2002                 /s/ John J. Millerick
                                             --------------------------------
                                             (Authorized Signature)
                                              John J. Millerick


                                             Senior Vice-President and Chief
                                             Financial Officer
                                             ---------------------------------
                                             (Official Capacity - please print)


(please print here name of individual whose signature appears above, if
different from name of purchaser printed above)









                                 SCHEDULE "B"

                       DEFINITION OF ACCREDITED INVESTOR

         "Accredited Investor" means any person who comes within any of the
following categories:

1.       Any natural person whose individual net worth, or joint net worth
         with that person's spouse, at the time of his purchase exceeds
         US$1,000,000;

2.       Any natural person who had an individual income in excess of
         US$200,000 in each of the two most recent years or joint income with
         that person's spouse in excess of US$300,000 in each of those years
         and has a reasonable expectation of reaching the same income level in
         the current year;

3.       Any entity in which all of the equity owners are accredited
         investors;

4.       Any bank as defined in Section 3(a)(2) of the U.S. Securities Act or
         any savings and loan association or other institution as defined in
         Section 3(a)(5)(A) of the U.S. Securities Act whether acting in its
         individual or fiduciary capacity; any broker dealer registered
         pursuant to Section 15 of the Securities Exchange Act of 1934; any
         insurance company as defined in Section 2(13) of the U.S. Securities
         Act; any investment company registered under the Investment Company
         Act of 1940 or a business development company as defined in section
         2(a)(48) of that Act; any Small Business Investment Company licensed
         by the U.S. Small Business Administration under Section 301(c) or (d)
         of the Small Business Investment Act of 1958; any plan established
         and maintained by a state, its political subdivisions, or any agency
         or instrumentality of a state or its political subdivisions, for the
         benefit of its employees, if such plan has total assets in excess of
         US$5,000,000; any employee benefit plan within the meaning of the
         Employee Retirement Income Security Act of 1974, if the investment
         decision is made by a plan fiduciary, as defined in Section 3(21) of
         such Act, which is either a bank, savings and loan association,
         insurance company, or registered investment adviser, or if the
         employee benefit plan has total assets in excess of US$5,000,000, or,
         if a self-directed plan, with investment decisions made solely by
         persons that are accredited investors;

5.       Any private business development company as defined in Section
         202(a)(22) of the Investments Advisers Act of 1940;

6.       Any organization described in section 501(c)(3) of the Internal
         Revenue Code, corporation, Massachusetts or similar business trust,
         or partnership, not formed for the specific purpose of acquiring the
         securities offered, with total assets in excess of US$5,000,000;

7.       Any director, executive officer, or general partner of the issuer of
         the securities being offered or sold, or any director, executive
         officer, or general partner of a general partner of that issuer; and

8.       Any trust with total assets in excess of US$5,000,000, not formed for
         the specific purpose of acquiring the securities offered, whose
         purchase is directed by a sophisticated person, being defined as a
         person who has such knowledge and experience in financial and
         business matters that he or she is capable of evaluating the merits
         and risks of the prospective investment.