A competency-based virtual reality training curriculum for the acquisition of laparoscopic psychomotor skill
A competency-based virtual reality training curriculum for the acquisition of laparoscopic psychomotor skill
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DOI：
10.1016/j.amjsurg.2005.10.014
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发表时间：
2006-01-01
影响因子：
3
通讯作者：
Darzi, A
中科院分区：
文献类型：
--
作者：
Aggarwal, R;Grantcharov, T;Darzi, A
背景：研究已经证明了使用虚拟现实(VR)模拟器培训新手腹腔镜外科医生的有益效果，尽管对于最佳的VR培训课程仍未达成共识。本研究旨在建立并验证结构化的虚拟现实课程，为腹腔镜培训提供循证的方法。方法：微创虚拟现实模拟器(MIST-VR)包含12个抽象的腹腔镜任务，每个任务有3个不同的难度等级(容易、中等和困难)。20名医学生完成了2次简单水平的所有任务，10次中等水平的任务，最后5次最复杂的2次难度水平的任务。在中等水平，受试者被随机分成两组，完成全部12项任务(A组)或最复杂的2项任务(B组)。通过每只手所用的时间、路径长度和误差来衡量性能。结果：两组在EASY水平上的基线表现相似。在中等水平，所有3个参数的学习曲线在重复第二次(A组，P<0.05)和第六次(B组，P&t；0.05)时达到平台期。两组在硬水平上的表现相似，均达到了预先设定的专家标准。结论：分级的腹腔镜培训课程使学员能够熟悉、培训和接受腹腔镜VR模拟器的评估。这项研究有助于将VR模拟纳入已建立的外科培训计划。(C)2006 Excerpta Medica Inc.保留所有权利。
Background: Studies have demonstrated the beneficial effect of training novice laparoscopic surgeons using virtual reality (VR) simulators, although there is still no consensus regarding an optimal VR training curriculum. This study aims to establish and validate a structured VR curriculum to provide an evidence-based approach for laparoscopic training programmes.Methods: The minimally invasive VR simulator (MIST-VR) has 12 abstract laparoscopic tasks, each at 3 graduated levels of difficulty (easy, medium, and hard). Twenty medical students completed 2 sessions of all tasks at the easy level, 10 sessions at the medium level, and finally 5 sessions of the 2 most complex tasks at the hard level. At the medium level, subjects were randomized into 2 equal groups performing either all 12 tasks (group A) or the 2 most complex tasks (group B). Performance was measured by time taken, path length, and errors for each hand. The results were compared between groups, and to those of 10 experienced laparoscopic surgeons.Results: Baseline performance of both groups was similar at the easy level. At the medium level, learning curves for all 3 parameters reached plateau at the second (group A, P < .05) and sixth (group B, P < .05) repetitions. Performance at the hard level was similar between the 2 groups, and all achieved the pre-set expert criteria.Conclusion: A graduated laparoscopic training curriculum enables trainees to familiarise, train and be assessed on laparoscopic VR simulators. This study can aid the incorporation of VR simulation into established surgical training programmes. (c) 2006 Excerpta Medica Inc. All rights reserved.