This study was funded by NIH grant number R01 DC008153 from the National Institute on Deafness and Other Communicative Disorders.
Video-based method of quantifying performance and instrument motion during simulated phonosurgery
Article first published online: 26 JUN 2014
© 2014 The American Laryngological, Rhinological and Otological Society, Inc.
Volume 124, Issue 10, pages 2332–2337, October 2014
How to Cite
Conroy, E., Surender, K., Geng, Z., Chen, T., Dailey, S. and Jiang, J. (2014), Video-based method of quantifying performance and instrument motion during simulated phonosurgery. The Laryngoscope, 124: 2332–2337. doi: 10.1002/lary.24724
The authors have no funding, financial relationships, or conflicts of interest to disclose.
- Issue published online: 27 SEP 2014
- Article first published online: 26 JUN 2014
- Accepted manuscript online: 16 APR 2014 04:55AM EST
- Manuscript Accepted: 14 APR 2014
- Manuscript Revised: 11 MAR 2014
- Manuscript Received: 26 APR 2013
- surgical assessment;
- surgical training;
- simulated model;
- Video-Based Phonomicrosurgery Instrument Tracking System
To investigate the use of the Video-Based Phonomicrosurgery Instrument Tracking System to collect instrument position data during simulated phonomicrosurgery and calculate motion metrics using these data. We used this system to determine if novice subject motion metrics improved over 1 week of training.
Prospective cohort study.
Ten subjects performed simulated surgical tasks once per day for 5 days. Instrument position data were collected and used to compute motion metrics (path length, depth perception, and motion smoothness). Data were analyzed to determine if motion metrics improved with practice time. Task outcome was also determined each day, and relationships between task outcome and motion metrics were used to evaluate the validity of motion metrics as indicators of surgical performance.
Significant decreases over time were observed for path length (P < .001), depth perception (P < .001), and task outcome (P < .001). No significant change was observed for motion smoothness. Significant relationships were observed between task outcome and path length (P < .001), depth perception (P < .001), and motion smoothness (P < .001).
Our system can estimate instrument trajectory and provide quantitative descriptions of surgical performance. It may be useful for evaluating phonomicrosurgery performance. Path length and depth perception may be particularly useful indicators.
Level of Evidence
NA Laryngoscope 124:2332–2337, 2014