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Surg Endosc. 2002 Dec;16(12):1746-52. Epub 2002 Jul 29.

Virtual reality as a metric for the assessment of laparoscopic psychomotor skills. Learning curves and reliability measures.

Author information

1
Northern Ireland Center for Endoscopic Training and Research, Queen's University of Belfast, Belfast, Ireland.

Abstract

BACKGROUND:

The objective assessment of the psychomotor skills of surgeons is now a priority; however, this is a difficult task because of measurement difficulties associated with the assessment of surgery in vivo. In this study, virtual reality (VR) was used to overcome these problems.

METHODS:

Twelve experienced (>50 minimal-access procedures), 12 inexperienced laparoscopic surgeons (<10 minimal-access procedures), and 12 laparoscopic novices participated in the study. Each subject completed 10 trials on the Minimally Invasive Surgical Trainer; Virtual Reality (MIST VR).

RESULTS:

Experienced laparoscopic surgeons performed the tasks significantly (p < 0.01) faster, with less error, more economy in the movement of instruments and the use of diathermy, and with greater consistency in performance. The standardized coefficient alpha for performance measures ranged from a = 0.89 to 0.98, showing high internal measurement consistency. Test-retest reliability ranged from r = 0.96 to r = 0.5.

CONCLUSION:

VR is a useful tool for evaluating the psychomotor skills needed to perform laparoscopic surgery.

PMID:
12140641
DOI:
10.1007/s00464-001-8215-6
[Indexed for MEDLINE]

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