Advanced 3-D Ultrasound Services, Inc.
                                7732 N Mobley Rd
                                Odessa, FL 33556
                      Phone: 813-926-3298 Fax: 813-926-3548

5/24/2005

Hereby  enters  into a Letter of Intent  with  P.T.S.,  Inc.  of St.  Petersburg
Florida.  This Letter of Intent is for 3-D to acquire P.T.S.,  Inc. is expressly
contingent of both parties completing their proper due diligence. This Letter of
Intent is expressly  contingent upon a formal agreement being drawn and executed
by both parties.



Advanced 3-D Ultrasound Services, Inc.

By: /s/ David Weintraub
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David Weintraub
President
Chief Executive Officer
Chief Financial Officer


Professional Technical Systems, Inc.

By: /s/ Benjamin C. Croxton
- ------------------------------------
Benjamin C. Croxton
President