Gallagher A G, Satava R M
Northern Ireland Center for Endoscopic Training and Research, Queen's University of Belfast, Belfast, Ireland.
Surg Endosc. 2002 Dec;16(12):1746-52. doi: 10.1007/s00464-001-8215-6. Epub 2002 Jul 29.
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.
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).
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.
VR is a useful tool for evaluating the psychomotor skills needed to perform laparoscopic surgery.
对外科医生心理运动技能进行客观评估现已成为当务之急；然而，这是一项艰巨的任务，因为对活体手术进行评估存在测量困难。在本研究中，虚拟现实（VR）被用于克服这些问题。
12名经验丰富的（超过50例微创手术）、12名经验不足的腹腔镜外科医生（少于10例微创手术）以及12名腹腔镜手术新手参与了该研究。每位受试者在微创外科手术训练器；虚拟现实（MIST VR）上完成10次试验。
经验丰富的腹腔镜外科医生完成任务的速度明显更快（p < 0.01），错误更少，器械移动和使用电刀时更经济，且操作表现更具一致性。性能测量的标准化系数阿尔法范围为a = 0.89至0.98，显示出较高的内部测量一致性。重测信度范围为r = 0.96至r = 0.5。
VR是评估进行腹腔镜手术所需心理运动技能的有用工具。
