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Fuzzy set theory for performance evaluation in a surgical simulator

Published: 01 December 2007 Publication History

Abstract

Increasing interest in computer-based surgical simulators as time-and cost-efficient training tools has introduced a new problem: objective evaluation of surgical performance based on scoring metrics provided by surgical simulators. This project employed fuzzy set theory to design a classifier for performance of a subject training on a surgical simulator, using three categories: novice, intermediate, and expert.
The MIST-VR simulator was used in a user study of 26 subjects with three different surgical skill levels: 8 experienced laparoscopic surgeons (experts), 8 surgical assistants (intermediates), and 10 nurses (novices). Subjects were required to perform four trials of a suturing task and a knot-tying task on the simulator. The performance data were then used to train and test two fuzzy classifiers for each task. The fuzzy classifier was able to classify the users of the system. The models presented a highly nonlinear relationship between the inputs (performance metrics) and output (fuzzy score) of the system, which may not be effectively captured with classical classification approaches. Fuzzy classifiers, however, can offer effective tools to handle the complexity and fuzziness of objective evaluation of surgical performances.

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Cited By

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  • (2018)Skill-based human---robot cooperation in tele-operated path trackingAutonomous Robots10.1007/s10514-017-9675-442:5(997-1009)Online publication date: 28-Dec-2018
  • (2017)Low-level Event Detection System for Minimally-Invasive Surgery TrainingProceedings of the 4th International Workshop on Sensor-based Activity Recognition and Interaction10.1145/3134230.3134241(1-6)Online publication date: 21-Sep-2017
  • (2014)A Quality of Experience Model for Haptic Virtual EnvironmentsACM Transactions on Multimedia Computing, Communications, and Applications10.1145/254099110:3(1-23)Online publication date: 17-Apr-2014
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Published In

cover image Presence: Teleoperators and Virtual Environments
Presence: Teleoperators and Virtual Environments  Volume 16, Issue 6
December 2007
114 pages

Publisher

MIT Press

Cambridge, MA, United States

Publication History

Published: 01 December 2007

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View all
  • (2018)Skill-based human---robot cooperation in tele-operated path trackingAutonomous Robots10.1007/s10514-017-9675-442:5(997-1009)Online publication date: 28-Dec-2018
  • (2017)Low-level Event Detection System for Minimally-Invasive Surgery TrainingProceedings of the 4th International Workshop on Sensor-based Activity Recognition and Interaction10.1145/3134230.3134241(1-6)Online publication date: 21-Sep-2017
  • (2014)A Quality of Experience Model for Haptic Virtual EnvironmentsACM Transactions on Multimedia Computing, Communications, and Applications10.1145/254099110:3(1-23)Online publication date: 17-Apr-2014
  • (2011)Knowledge elicitation for performance assessment in a computerized surgical training systemApplied Soft Computing10.1016/j.asoc.2011.01.04111:4(3697-3708)Online publication date: 1-Jun-2011

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