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Related Experiment Video

Updated: Jun 30, 2026

Identification of Olfactory Volatiles using Gas Chromatography-Multi-unit Recordings (GCMR) in the Insect Antennal Lobe
09:49

Identification of Olfactory Volatiles using Gas Chromatography-Multi-unit Recordings (GCMR) in the Insect Antennal Lobe

Published on: February 24, 2013

Expert benchmark for the GI Mentor II.

Roy Phitayakorn1, Jeffrey M Marks, Harry L Reynolds

  • 1Department of Surgery, University Hospitals Case Medical Center, Cleveland, OH 44106-5047, USA. ropst14@hotmail.com

Surgical Endoscopy
|September 25, 2008
PubMed
Summary

Virtual reality endoscopy simulators show wide performance variability among experienced surgeons. Establishing expert benchmarks is crucial for resident assessment and competence certification in surgical training.

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Area of Science:

  • Medical Simulation
  • Surgical Education
  • Gastrointestinal Endoscopy

Background:

  • Growing interest in virtual reality (VR) simulators for general surgery residency training.
  • Current VR simulators often lack established benchmarks for assessing trainee competence and skill proficiency.

Purpose of the Study:

  • To evaluate the performance variability of experienced endoscopists on a VR endoscopy simulator.
  • To assess the feasibility of using VR simulators for surgical skill assessment.

Main Methods:

  • Twenty-three experienced surgeons (>1,000 colonoscopies) used the GI Mentor I or II VR simulator.
  • Participants completed a standardized colonoscopy case after a 5-minute familiarization period.
  • Performance metrics, including time to cecum and mucosal examination completeness, were recorded.

Related Experiment Videos

Last Updated: Jun 30, 2026

Identification of Olfactory Volatiles using Gas Chromatography-Multi-unit Recordings (GCMR) in the Insect Antennal Lobe
09:49

Identification of Olfactory Volatiles using Gas Chromatography-Multi-unit Recordings (GCMR) in the Insect Antennal Lobe

Published on: February 24, 2013

Main Results:

  • Significant variability in performance metrics (time to cecum, mucosal coverage, looping time) was observed among experienced surgeons.
  • Overall screening efficiency averaged 70.33%, with considerable range (20-94%).
  • Participants frequently misidentified normal simulated structures as pathology.

Conclusions:

  • VR endoscopy simulator performance exhibits wide variability, even in expert endoscopists.
  • Development and implementation of expert benchmark tests are essential before using VR simulators for resident assessment and certification.