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Literature DB >> 24030904

Towards virtual FLS: development of a peg transfer simulator.

Venkata S Arikatla¹, Woojin Ahn, Ganesh Sankaranarayanan, Suvranu De.

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.

Entities: Chemical Disease Gene Species

Keywords: construct validation; face validation; haptics; minimally invasive surgery; physics-based simulation; surgical simulation; virtual reality

Mesh：

Year: 2013 PMID： 24030904 PMCID： PMC3962520 DOI： 10.1002/rcs.1534

Source DB: PubMed Journal: Int J Med Robot ISSN： 1478-5951 Impact factor: 2.547

25 in total

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