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Measurement of in-vivo force response of intra-abdominal soft tissues for surgical simulation

Tay, BK; Stylopoulos, N; De, S; Rattner, DW; Srinivasan, MA; (2002) Measurement of in-vivo force response of intra-abdominal soft tissues for surgical simulation. In: Westwood, JD and Hoffman, HM and Robb, RA and Stredney, D, (eds.) MEDICINE MEETS VIRTUAL REALITY 02/10. (pp. 514 - 519). I O S PRESS

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Abstract

The lack of data on in-vivo material properties of soft tissues has been a significant impediment in the development of virtual reality based surgical simulators that can provide the user with realistic visual and haptic feedback. As a first step towards characterizing the mechanical behavior of organs, this work presents in-vivo force response of the liver and lower esophagus of pigs when subjected to ramp and hold, and sinusoidal indentations delivered using a haptic feedback device, Phantom, employed as a mechanical stimulator. The results show that pulse significantly affects the reaction forces and that the lower esophagus is 2 to 2.5 times stiffer than the liver.

Type:Proceedings paper
Title:Measurement of in-vivo force response of intra-abdominal soft tissues for surgical simulation
Event:10th Annual Medicine Meets Virtual Reality Conference
Location:NEWPORT BEACH, CA
Dates:2002-01-23
ISBN:1-58603-203-8
UCL classification:UCL > School of BEAMS > Faculty of Engineering Science > Computer Science

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