UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

                                  SCHEDULE 13G
                                 (Rule 13d-102)

                    Under the Securities Exchange Act of 1934

                            (Amendment No. ______)*

                          BIO-IMAGING TECHNOLOGIES INC.
--------------------------------------------------------------------------------
                                (Name of Issuer)


--------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                    09056N103
--------------------------------------------------------------------------------
                                 (CUSIP Number)

                                December 31, 2007
--------------------------------------------------------------------------------
            (Date of Event Which Requires Filing of this Statement)

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

                                |_| Rule 13d-1(b)

                                |X| 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 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).

                          Continued on following pages
                                Page 1 of 7 Pages



                                  SCHEDULE 13G

CUSIP No.913201109                                             Page 2 of 7 Pages

--------------------------------------------------------------------------------
1.   NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

     TILDENROW ADVISORS, LLC
--------------------------------------------------------------------------------
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
--------------------------------------------------------------------------------
  NUMBER OF    5.   SOLE VOTING POWER

   SHARES           16,800
               -----------------------------------------------------------------
BENEFICIALLY   6.   SHARED VOTING POWER

  OWNED BY          713,162
               -----------------------------------------------------------------
    EACH       7.   SOLE DISPOSITIVE POWER

  REPORTING         16,800
               -----------------------------------------------------------------
   PERSON      8.   SHARED DISPOSITIVE POWER

    WITH            713,162
--------------------------------------------------------------------------------
9.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     729,962
--------------------------------------------------------------------------------
10.  CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

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

     6.24% based on 11,696,108 shares outstanding as of September 30, 2007.
--------------------------------------------------------------------------------
12.  TYPE OF REPORTING PERSON*

     IA
--------------------------------------------------------------------------------
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!



                                  SCHEDULE 13G

CUSIP No.913201109                                             Page 3 of 7 Pages

--------------------------------------------------------------------------------
1.   NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

     EILEEN SEGALL
--------------------------------------------------------------------------------
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 of America
--------------------------------------------------------------------------------
  NUMBER OF    5.   SOLE VOTING POWER

   SHARES           16,800
               -----------------------------------------------------------------
BENEFICIALLY   6.   SHARED VOTING POWER

  OWNED BY          713,162
               -----------------------------------------------------------------
    EACH       7.   SOLE DISPOSITIVE POWER

  REPORTING         16,800
               -----------------------------------------------------------------
   PERSON      8.   SHARED DISPOSITIVE POWER

    WITH            713,162
--------------------------------------------------------------------------------
9.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     729,962
--------------------------------------------------------------------------------
10.  CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

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

     6.24% based on 11,696,108 shares outstanding as of September 30, 2007.
--------------------------------------------------------------------------------
12.  TYPE OF REPORTING PERSON*

     HC
--------------------------------------------------------------------------------
                     *SEE INSTRUCTIONS BEFORE FILLING OUT!



                                                               Page 4 of 7 Pages

Item 1(a). Name of Issuer:

Bio-Imaging Technologies Inc. (the "Issuer")

Item 1(b). Address of Issuer's Principal Executive Offices:

826 Newton-Yardley Road
Newton, PA 18940-1721


Item 2(a). Name of Person Filing

This   Statement  is  filed  on  behalf  of  each  of  the   following   persons
(collectively, the "Reporting Persons"):

           i) Tildenrow Advisors, LLC ("Tildenrow Advisors")

           ii) Eileen Segall ("Ms. Segall")

This  Statement  pertains to the Shares (as defined  herein) of the Issuer which
are held for the  accounts of (i) Landmark  Select,  a Cayman  Islands  exempted
company,  (ii) Tildenrow Partners,  LP, a Delaware limited partnership and (iii)
Eileen Segall personally. Tildenrow Advisors serves as the investment adviser to
Tildenrow  Partners,  LP  and as a  sub-adviser  to  Landmark  Select.  In  such
capacity,  Tildenrow  Advisors  and Ms.  Segall may be deemed to have voting and
dispositive  power over the Shares held for the  account of Landmark  Select and
Tildenrow  Partners LP, in addition to the Shares held for her own account.  Ms.
Segall  is  the  managing  member  of  Tildenrow  Advisors,  with  discretionary
authority in relation to trades advised by Tildenrow Advisors.

Item 2(b). Address of Principal Business Office or, if None, Residence:

      The address of the principal business office of Tildenrow Advisors and Ms.
Segall is 120 E. 34th Street Suite 6H, New York, NY 10016.

Item 2(c). Citizenship:

i)   Tildenrow Advisors is a New York limited liability company;

ii) Ms. Segall is a citizen of the United States of America.

Item 2(d). Title of Class of Securities:

Common Stock (the "Shares")

Item 2(e). CUSIP Number:

09056N103

Item  3.  If  This  Statement  is  Filed  Pursuant  to   ss.ss.240.13d-1(b)   or
240.13d-2(b) or (c),         Check Whether the Person Filing is a:

           This Item 3 is not applicable.



                                                               Page 5 of 7 Pages

Item 4. Ownership:

Item 4(a). Amount Beneficially Owned:

      As of December 31, 2007,  Tildenrow  Advisors and Ms. Segall may be deemed
to be the beneficial  owner of 729,962  Shares.  This amount consists of 713,162
Shares  held for the  account of  Landmark  Select,  16,000  shares held for the
account  of  Tildenrow  Partners,  LP and 800 shares  beneficially  owned by Ms.
Segall.

Item 4(b). Percent of Class:

      The number of Shares of which each of Tildenrow  Advisors  and Ms.  Segall
may be deemed to be the beneficial owner constitutes  approximately 6.24% of the
total  number of Shares  outstanding  (based  upon  information  provided by the
Issuer in its most  recently  filed  quarterly  report on Form 10-Q,  there were
approximately 11,696,108 shares outstanding as of September 30, 2007).

Item 4(c). Number of Shares of which such person has:

Tildenrow Advisors and Ms. Segall
---------------------------------

(i) Sole power to vote or direct the vote:                                16,800

(ii) Shared power to vote or direct the vote:                            713,162

(iii) Sole power to dispose or direct the disposition of:                 16,800

(iv) Shared power to dispose or direct the disposition of:               713,162


Item 5. Ownership of Five Percent or Less of a Class:

           This Item 5 is not applicable.

Item 6. Ownership of More than Five Percent on Behalf of Another Person:

           This Item 6 is not applicable.

Item 7.    Identification and Classification of the Subsidiary Which Acquired
           the Security Being Reported on By the Parent Holding Company:

           See disclosure in Item 2 hereof.

Item 8. Identification and Classification of Members of the Group:

           This Item 8 is not applicable.

Item 9. Notice of Dissolution of Group:

           This Item 9 is not applicable.



                                                               Page 6 of 7 Pages


Item 10.   Certification:

      By signing below each of the Reporting Persons certifies that, to the best
of their  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,  the
undersigned  certify that the  information  set forth in this statement is true,
complete and correct.

Date: 2/12/2008                           Tildenrow Advisors, LLC
     --------------


                                       By: /s/ Eileen Segall
                                          -------------------------------
                                           Eileen Segall, Managing Member


                                           /s/ Eileen Segall
Date: 2/12/2008                            -------------------------------
     -------------                         Eileen Segall