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首页> 外文期刊>Surgical Endoscopy >EVA: laparoscopic instrument tracking based on Endoscopic Video Analysis for psychomotor skills assessment.
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EVA: laparoscopic instrument tracking based on Endoscopic Video Analysis for psychomotor skills assessment.

机译：EVA：基于内窥镜视频分析的腹腔镜器械跟踪，用于心理运动技能评估。

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The EVA (Endoscopic Video Analysis) tracking system is a new system for extracting motions of laparoscopic instruments based on nonobtrusive video tracking. The feasibility of using EVA in laparoscopic settings has been tested in a box trainer setup.EVA makes use of an algorithm that employs information of the laparoscopic instrument's shaft edges in the image, the instrument's insertion point, and the camera's optical center to track the three-dimensional position of the instrument tip. A validation study of EVA comprised a comparison of the measurements achieved with EVA and the TrEndo tracking system. To this end, 42 participants (16 novices, 22 residents, and 4 experts) were asked to perform a peg transfer task in a box trainer. Ten motion-based metrics were used to assess their performance.Construct validation of the EVA has been obtained for seven motion-based metrics. Concurrent validation revealed that there is a strong correlation between the results obtained by EVA and the TrEndo for metrics, such as path length (ρ = 0.97), average speed (ρ = 0.94), or economy of volume (ρ = 0.85), proving the viability of EVA.EVA has been successfully validated in a box trainer setup, showing the potential of endoscopic video analysis to assess laparoscopic psychomotor skills. The results encourage further implementation of video tracking in training setups and image-guided surgery.
机译：EVA（内窥镜视频分析）跟踪系统是一种基于非干扰性视频跟踪提取腹腔镜器械运动的新系统。在箱式教练机中测试了在腹腔镜环境中使用EVA的可行性.EVA利用一种算法，该算法利用图像中腹腔镜仪器的轴边缘，仪器的插入点和相机的光学中心的信息来跟踪这三个尖端的三维位置。 EVA的验证研究包括对EVA和TrEndo跟踪系统获得的测量结果的比较。为此，要求42名参与者（16名新手，22名居民和4名专家）在盒式教练机中执行桩钉转移任务。十个基于运动的指标用于评估其性能。已针对七个基于运动的指标对EVA进行了结构验证。并行验证表明，EVA和TrEndo的度量结果之间存在很强的相关性，例如路径长度（ρ= 0.97），平均速度（ρ= 0.94）或体积经济性（ρ= 0.85），证明EVA.EVA的可行性已在盒式教练机中成功验证，显示出内窥镜视频分析评估腹腔镜精神运动技能的潜力。结果鼓励在培训设置和图像引导手术中进一步实施视频跟踪。

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