Abstract
Background: Peg transfer is one of five tasks in the Fundamentals of Laparoscopic Surgery (FLS), program. This paper reports the development and validation of a Virtual Basic Laparoscopic Skill Trainer-Peg Transfer (VBLaST-PT) simulator for automatic real-time scoring and objective quantification of performance. Methods: New techniques have been introduced in order to allow bi-manual manipulation of pegs and automatic scoring/evaluation while maintaining high quality of simulation. A preliminary face and construct validation study was performed with 22 subjects divided into two groups: experts (PGY 4-5, fellow and practicing surgeons) and novice (PGY 1-3). Results: Face validation shows high scores for all aspects of the simulation. Two-tailed Mann-Whitney U-test scores showed significant differences between the two groups on completion time (P=0.003), FLS score (P=0.002) and the VBLaST-PT; score (P=0.006). Conclusions: VBLaST-PT is a high quality virtual simulator that showed both face and construct validity.
Original language | English (US) |
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Pages (from-to) | 344-355 |
Number of pages | 12 |
Journal | International Journal of Medical Robotics and Computer Assisted Surgery |
Volume | 10 |
Issue number | 3 |
DOIs | |
State | Published - Sep 1 2014 |
Externally published | Yes |
Keywords
- Construct validation
- Face validation
- Haptics
- Minimally invasive surgery
- Physics-based simulation
- Surgical simulation
- Virtual reality
ASJC Scopus subject areas
- Surgery
- Biophysics
- Computer Science Applications