UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13G
                                (Amendment No. )*

                    Under the Securities Exchange Act of 1934

                         Bio-Imaging Technologies, Inc.
                                (Name of Issuer)

                                  Common Stock
                         (Title of Class of Securities)

                                    09056N103
                                 (CUSIP Number)

                                February 28, 2005
             (Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

         [X] Rule 13d-1(b)

         [ ] Rule 13d-1(c)

         [ ] Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).


CUSIP No.  09056N103
--------------------------------------------------------------------------------
  1        NAMES OF REPORTING PERSONS
           I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

           Perry Corp.
--------------------------------------------------------------------------------
  2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                        (a) [__]
                                                                        (b) [__]
--------------------------------------------------------------------------------
  3        SEC USE ONLY

--------------------------------------------------------------------------------
  4        CITIZENSHIP OR PLACE OF ORGANIZATION

           New York
--------------------------------------------------------------------------------
                        5       SOLE VOTING POWER

                                1,142,123
                        --------------------------------------------------------
       NUMBER OF        6       SHARED VOTING POWER
        SHARES
     BENEFICIALLY               NONE
       OWNED BY         --------------------------------------------------------
         EACH           7       SOLE DISPOSITIVE POWER
      REPORTING
        PERSON                  1,142,123
         WITH           --------------------------------------------------------
                        8       SHARED DISPOSITIVE POWER

                                NONE
--------------------------------------------------------------------------------
   9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

           1,142,123
--------------------------------------------------------------------------------
   10      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
           CERTAIN SHARES*                                                  [__]

--------------------------------------------------------------------------------
   11      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

           10.54%
--------------------------------------------------------------------------------
   12      TYPE OF REPORTING PERSON*

           IA, CO
--------------------------------------------------------------------------------

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!


CUSIP No.  09056N103
--------------------------------------------------------------------------------
  1        NAMES OF REPORTING PERSONS
           I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

           Richard C. Perry
--------------------------------------------------------------------------------
  2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                        (a) [__]
                                                                        (b) [__]
--------------------------------------------------------------------------------
  3        SEC USE ONLY

--------------------------------------------------------------------------------
  4        CITIZENSHIP OR PLACE OF ORGANIZATION

           United States
--------------------------------------------------------------------------------
                             5       SOLE VOTING POWER

                                     1,142,123 (all shares beneficially owned by
                                     Perry Corp.)(1)
                             ---------------------------------------------------
       NUMBER OF             6       SHARED VOTING POWER
       SHARES
     BENEFICIALLY                    NONE
       OWNED BY              ---------------------------------------------------
         EACH                7       SOLE DISPOSITIVE POWER
     REPORTING
        PERSON                       1,142,123 (all shares beneficially owned by
                                     Perry Corp.)(1)
         WITH                ---------------------------------------------------
                             8       SHARED DISPOSITIVE POWER

                                     NONE
--------------------------------------------------------------------------------
   9       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

           1,142,1231
--------------------------------------------------------------------------------
   10      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
           CERTAIN SHARES*                                                  [__]

--------------------------------------------------------------------------------
   11      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

           10.54%
--------------------------------------------------------------------------------
  12       TYPE OF REPORTING PERSON*

           IN, HC
--------------------------------------------------------------------------------
--------
(1) Richard Perry disclaims any beneficial ownership interest of the shares of
Common Stock held by any funds for which Perry Corp. acts as the general partner
and/or investment adviser, except for that portion of such shares that relates
to his economic interest in such shares.

                      *SEE INSTRUCTIONS BEFORE FILLING OUT!


ITEM 1(a).        NAME OF ISSUER:

                  Bio-Imaging Technologies, Inc.

ITEM 1(b).        ADDRESS OF ISSUER'S PRINCIPAL PLACE EXECUTIVE OFFICES:

                  826 Newton-Yardley Road
                  Newton, PA 18940

ITEM 2(a).        NAME OF PERSON FILING:

                  This statement is filed on behalf of Perry Corp., a New York
                  corporation, and Richard C. Perry, an American citizen. Perry
                  Corp. is a private investment firm, and Richard C. Perry is
                  the President and sole stockholder of Perry Corp. Their
                  agreement in writing to file this statement on behalf of each
                  of them is attached as Exhibit A hereto.

                  This statement relates to shares held for the accounts of two
                  or more private investment funds for which Perry Corp. acts as
                  general partner and/or investment adviser.

ITEM 2(b).        ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE:

                  599 Lexington Avenue
                  New York, NY 10022

ITEM 2(c).        CITIZENSHIP:

                  Perry Corp. is a New York corporation and Richard C. Perry is
                  a citizen of the United States.

ITEM 2(d).        TITLE OF CLASS OF SECURITIES:

                  Common Stock, par value $0.00025 (the "Common Stock")

ITEM 2(e).        CUSIP NUMBER:

                  09056N103

ITEM 3.           Perry Corp. is an investment adviser registered under Section
                  203 of the Investment Advisers Act of 1940 and Richard C.
                  Perry is a control person of Perry Corp.


ITEM 4.           OWNERSHIP:

                  (a)   AMOUNT BENEFICIALLY OWNED:

                        1,142,123(1)

                  (b)   PERCENT OF CLASS:

                        10.54%

                  (c)   NUMBER OF SHARES AS TO WHICH SUCH PERSON HAS:

                        (i)   Sole power to vote or to direct the vote:

                              1,142,123(1)

                        (ii)  Shared power to vote or to direct the vote:

                              NONE

                        (iii) Sole power to dispose or to direct the disposition
                              of:

                              1,142,123(1)

                        (iv)  Shared power to dispose or to direct the
                              disposition of:

                              NONE

ITEM 5.           OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS:

                  If this statement is being filed to report the fact that as of
                  the date hereof the reporting person has ceased to be the
                  beneficial owner of more than 5 percent of the class of
                  securities, check the following []

ITEM 6.           OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER
                  PERSON:

                  The limited partners of (or investors in) each of two or more
                  private investment funds for which Perry Corp. acts as general
                  partner and/or investment adviser have the right to
                  participate in the receipt of dividends from, and proceeds
                  from the sale of, the shares held for the accounts of such
                  funds in accordance with their respective limited partnership
                  interest (or investment percentages)in such funds.
--------
(1) Richard Perry disclaims any beneficial ownership interest of the shares of
Common Stock held by any funds for which Perry Corp. acts as the general partner
and/or investment adviser, except for that portion of such shares that relates
to his economic interest in such shares.


ITEM 7.           IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH 
                  ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING
                  COMPANY:

                  See Exhibit B

ITEM 8.           IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP:

                  Not Applicable

ITEM 9.           NOTICE OF DISSOLUTION OF THE GROUP:

                  Not Applicable

ITEM 10.          CERTIFICATION:

                  By signing below I certify that, to the best of my knowledge
                  and belief, the securities referred to above were not acquired
                  and are not held for the purpose of or with the effect of
                  changing or influencing the control of the issuer of the
                  securities and were not acquired and are not held in
                  connection with or as a participant in any transaction having
                  that purpose or effect.


                                    SIGNATURE

      After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.

                                              PERRY CORP.

Dated: March 9, 2005
       New York, New York                     By: /s/ Richard C. Perry
                                                  -----------------------------
                                                  Name: Richard C. Perry
                                                  Title: President

Dated: March 9, 2005
       New York, New York                    By:  /s/ Richard C. Perry
                                                  -----------------------------
                                                  Richard C. Perry


                                    AGREEMENT

                          JOINT FILING OF SCHEDULE 13G

      The undersigned hereby agree to jointly prepare and file with regulatory
authorities a Schedule 13G and any future amendments thereto reporting each of
the undersigned's ownership of securities of Bio-Imaging Technologies, Inc., and
hereby affirm that such Schedule 13G is being filed on behalf of each of the
undersigned pursuant to and in accordance with the provisions of Rule 13d-1(k)
under the Securities Exchange Act of 1934. The undersigned acknowledge that each
shall be responsible for the timely filing of such amendments, and for the
completeness and accuracy of the information concerning him or it contained
therein, but shall not be responsible for the completeness and accuracy of the
information concerning the other, except to the extent that he or it knows or
has reason to believe that such information is inaccurate.


                                              PERRY CORP.

Dated: March 9, 2005
       New York, New York                     By: /s/ Richard C. Perry
                                                  -----------------------------
                                                  Name: Richard C. Perry
                                                  Title: President

Dated: March 9, 2005
       New York, New York                    By:  /s/ Richard C. Perry
                                                  -----------------------------
                                                  Richard C. Perry


                                                                       EXHIBIT B

                                     ITEM 7

Perry Corp. is the relevant entity for which Richard C. Perry may be considered
a control person.

Perry Corp. is an investment adviser registered under the Investment Advisers
Act of 1940.