Analysis of the Structure of Surgical Activity for a Suturing and Knot-Tying Task
Analysis of the Structure of Surgical Activity for a Suturing and Knot-Tying Task
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DOI：
10.1371/journal.pone.0149174
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发表时间：
2016-03-07
期刊：
影响因子：
3.7
通讯作者：
Chen, Chi Chiung Grace
中科院分区：
文献类型：
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作者：
Vedula, S. Swaroop;Malpani, Anand O.;Chen, Chi Chiung Grace
背景外科手术任务是在一系列步骤中执行的，并且技术技能评估包括评估任务流效率。我们的目标是描述一个基本的surgical task.MethodsWe的专家和新手外科医生的任务流的差异使用了层次语义词汇分解和注释演习和手势的135例外科医生的结由18名外科医生进行。我们比较了动作和手势的数量，并按技能水平分析了任务流程。（专家组为26.29; 95%CI = 25.21 - 27.38，新手组为31.30; 95%CI = 29.05 - 33.55），手势错误少于新手（1.00; 95% CI = 0.61 - 1.39 vs. 2.84; 95% CI = 2.3 - 3.37）。演习之间的过渡，每个动作之间的手势专家审判比新手trials.ConclusionsActivity段和状态流转换内的一个基本的手术任务不同的手术技能水平，并可用于提供有针对性的反馈给手术学员。
BackgroundSurgical tasks are performed in a sequence of steps, and technical skill evaluation includes assessing task flow efficiency. Our objective was to describe differences in task flow for expert and novice surgeons for a basic surgical task.MethodsWe used a hierarchical semantic vocabulary to decompose and annotate maneuvers and gestures for 135 instances of a surgeon's knot performed by 18 surgeons. We compared counts of maneuvers and gestures, and analyzed task flow by skill level.ResultsExperts used fewer gestures to perform the task (26.29; 95% CI = 25.21 to 27.38 for experts vs. 31.30; 95% CI = 29.05 to 33.55 for novices) and made fewer errors in gestures than novices (1.00; 95% CI = 0.61 to 1.39 vs. 2.84; 95% CI = 2.3 to 3.37). Transitions among maneuvers, and among gestures within each maneuver for expert trials were more predictable than novice trials.ConclusionsActivity segments and state flow transitions within a basic surgical task differ by surgical skill level, and can be used to provide targeted feedback to surgical trainees.