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Proceedings Paper

Development of virtual environments for training skills and reducing errors in laparoscopic surgery
Author(s): Frank Tendick; Michael S. Downes; Murat Cenk Cavusoglu; Walter A. Gantert; Lawrence W. Way
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Paper Abstract

In every surgical procedure there are key steps and skills that, if performed incorrectly, can lead to complications. In conjunction with efforts, based on task and error analysis, in the Videoscopic Training Center at UCSF to identify these key elements in laparoscopic surgical procedures, the authors are developing virtual environments and modeling methods to train the elements. Laparoscopic surgery is particularly demanding of the surgeon's spatial skills, requiring the ability to create 3D mental models and plans while viewing a 2D image. For example, operating a laparoscope with the objective lens angled from the scope axis is a skill that some surgeons have difficulty mastering, even after using the instrument in many procedures. Virtual environments are a promising medium for teaching spatial skills. A kinematically accurate model of an angled laparoscope in an environment of simple targets is being tested in courses for novice and experienced surgeons. Errors in surgery are often due to a misinterpretation of local anatomy compounded with inadequate procedural knowledge. Methods to avoid bile duct injuries in cholecystectomy are being integrated into a deformable environment consisting of the liver, gallbladder, and biliary tree. Novel deformable tissue modeling algorithms based on finite element methods will be used to improve the response of the anatomical models.

Paper Details

Date Published: 5 June 1998
PDF: 9 pages
Proc. SPIE 3262, Surgical-Assist Systems, (5 June 1998); doi: 10.1117/12.309489
Show Author Affiliations
Frank Tendick, Univ. of California/San Francisco (United States)
Michael S. Downes, Univ. of California/Berkeley (United States)
Murat Cenk Cavusoglu, Univ. of California/Berkeley (United States)
Walter A. Gantert, Univ. of California/San Francisco (United States)
Lawrence W. Way, Univ. of California/San Francisco (United States)

Published in SPIE Proceedings Vol. 3262:
Surgical-Assist Systems
Roger Von Hanwehr; Marilyn Sue Bogner; Steven T. Charles; Abraham Katzir; Marilyn Sue Bogner; Steven T. Charles; James A. Harrington; Warren S. Grundfest; Louis S. Lome; Warren S. Grundfest; James A. Harrington; Abraham Katzir; Louis S. Lome; Michael W. Vannier; Roger Von Hanwehr, Editor(s)

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