Automated Metrics in a Virtual-Reality Myringotomy Simulator: Development and Construct Validity
The objectives of this study were: 1) to develop and implement a set of automated performance metrics into the Western myringotomy simulator, and 2) to establish construct validity.
Study Design:
Prospective simulator-based assessment study.
Setting:
The Auditory Biophysics Laboratory at Western University, London, Ontario, Canada.
Participants:
Eleven participants were recruited from the Department of Otolaryngology–Head & Neck Surgery at Western University: four senior otolaryngology consultants and seven junior otolaryngology residents.
Interventions:
Educational simulation.
Main Outcome Measure:
Discrimination between expert and novice participants on five primary automated performance metrics: 1) time to completion, 2) surgical errors, 3) incision angle, 4) incision length, and 5) the magnification of the microscope.
Methods:
Automated performance metrics were developed, programmed, and implemented into the simulator. Participants were given a standardized simulator orientation and instructions on myringotomy and tube placement. Each participant then performed 10 procedures and automated metrics were collected. The metrics were analyzed using the Mann–Whitney U test with Bonferroni correction.
Results:
All metrics discriminated senior otolaryngologists from junior residents with a significance of p
Source: Otology and Neurotology - Category: ENT & OMF Tags: Medical Neurotology Source Type: research
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