Assessing colonoscopic inspection skill using a virtual withdrawal simulation: a preliminary validation of...

Area of Science:

• Gastroenterology
• Medical Simulation
• Endoscopy Training

Background:

• Colonoscopy effectiveness relies on thorough mucosal inspection during withdrawal.
• Assessing live colonoscopy performance is challenging.
• Virtual reality simulation offers a standardized method for evaluating colonoscopy skills.

Purpose of the Study:

• To evaluate the validity of a virtual colonoscopy withdrawal simulation for assessing endoscopist performance.
• To identify key performance metrics for differentiating experienced endoscopists from novices.

Main Methods:

• Eleven experienced endoscopists and 18 novices performed simulated colonoscopic withdrawals.
• Ten performance metrics were analyzed, including polyp detection and colonoscope movement.
• Statistical comparisons were made between experienced and novice groups.

Main Results:

• Experienced endoscopists demonstrated superior mucosal inspection and polyp detection rates.
• Significant differences were observed in 8 out of 10 performance metrics (p < .005).
• Experts utilized more complex colonoscope movements, including angulation and rotation.

Conclusions:

• Virtual withdrawal simulation effectively distinguishes between expert and novice colonoscopy skills.
• This simulation is a promising tool for training and competence assessment in endoscopy.
• Standardized virtual assessments can enhance colon cancer diagnosis and prevention training.