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Characterization of intra-abdominal tissues from in vivo animal experiments for surgical simulation

Kim, J; Tay, BK; Stylopoulos, N; Rattner, DW; Srinivasan, MA; (2003) Characterization of intra-abdominal tissues from in vivo animal experiments for surgical simulation. In: Ellis, RE and Peters, TM, (eds.) MEDICAL IMAGE COMPUTING AND COMPUTER-ASSISTED INTERVENTION - MICCAI 2003, PT 1. (pp. 206 - 213). SPRINGER-VERLAG BERLIN

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Abstract

The lack of data on in vivo material properties of soft tissues is one of the impediments in the development of realistic surgical simulators. The measurement of these properties is not a trivial task, due to the difficulty of the testing itself and the complexity of tissue mechanical behavior. We have developed a system for measuring the mechanical properties of soft tissues in vivo using a robotic device fitted with a force transducer. We measured the response of soft tissues in intra-abdominal organs including the liver and lower esophagus of pigs by using both static and dynamic indentations. We characterize these properties using nonlinear models as well as a linear model. These material models can be effectively integrated into a simulator to provide the user with realistic visual and haptic feedback.

Type:Proceedings paper
Title:Characterization of intra-abdominal tissues from in vivo animal experiments for surgical simulation
Event:6th International Conference on Medical Imaging Computing and Computer-Assisted Intervention
Location:MONTREAL, CANADA
Dates:2003-11-15 - 2003-11-18
ISBN:3-540-20462-8
Keywords:VIRTUAL ENVIRONMENTS, SURGERY
UCL classification:UCL > School of BEAMS > Faculty of Engineering Science > Computer Science

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