Simulation-based training for prostate biopsies: towards the validation of the Biopsym simulator

Area of Science:

• Medical Simulation
• Surgical Education
• Virtual Reality in Medicine

Background:

• Prostate biopsies require specialized training for accuracy and patient safety.
• Virtual reality simulators offer a controlled environment for practicing complex medical procedures.
• The Biopsym simulator was developed to enhance the teaching of prostate biopsy techniques.

Purpose of the Study:

• To introduce an updated version of the Biopsym virtual-reality simulator for prostate biopsies.
• To present findings from a new validation study assessing the simulator's effectiveness.
• To evaluate improvements in physical realism, ultrasound image deformation, and scoring.

Main Methods:

• A prospective validation study was conducted from January to March 2017.
• Twenty-one participants (10 novices, 11 confirmed users) evaluated the simulator.
• Performance was assessed using a scoring system for systematic ultrasound-guided biopsies.

Main Results:

• Overall realism was rated 7.7/10, with no significant difference between user groups.
• Confirmed users achieved a median performance score of 54%, significantly higher than novices (31%).
• The simulator demonstrated construct validity, differentiating between novice and experienced users.

Conclusions:

• The updated Biopsym simulator shows construct validity, effectively distinguishing between user expertise levels.
• The simulator provides a valuable tool for training and assessing proficiency in prostate biopsies.
• Further validation supports its role in enhancing surgical education for ultrasound-guided procedures.