基于眼动训练的腹腔镜手术培训方法的研究
发布时间：2019-07-27 07:38
【摘要】：目前国内腹腔镜训练的相关研究中,研究者侧重于研究手眼协调关系中器械的移动路径,忽视了视觉在腹腔镜训练中的引导作用。其它领域已有研究表明,通过注视训练,可以提高训练者的知觉-运动技能水平。本文旨在探讨视线追踪技术在腹腔镜模拟训练中的有效性,分析不同训练方式下受试者的注视策略。本文利用Tobii X1 Light型号眼动仪追踪受试者在手术训练箱中进行左右移环任务时的注视点位置,获取表征注视策略方面的指标:任务完成的效率,以及视觉搜索、视觉加工和基于马尔可夫链模型的注视转移分析。研究结果表明,经过眼动训练后,受试者的末次完成时间较首次完成时间减少了101.5 s。与视频训练方式相比,眼动组训练前后,注视行为有显著变化;受试者的注视与眼跳时间的比值增加38%,对目标区域的注视时间增加,眼跳幅度增大0.58°,受试者的注视点转移到器械的概率减小15%。本文研究结果表明,可以将视线追踪技术应用领域扩展到腹腔镜模拟培训中,通过学习专家的注视策略,提高受试者的技能水平,缩短学习曲线。
[Abstract]:At present, in the related research of laparoscopic training in China, researchers focus on the movement path of instruments in hand-eye coordination relationship, ignoring the guiding role of vision in laparoscopic training. Other studies have shown that the level of perceptual and motor skills can be improved by watching training. The purpose of this paper is to explore the effectiveness of line of sight tracking in laparoscopic simulation training and to analyze the fixation strategies of subjects under different training methods. In this paper, the Tobii X1 Light eye movement instrument is used to track the position of the eyes when the subjects carry out the left and right shift ring tasks in the surgical training box, and the indexes to characterize the fixation strategy are obtained: the efficiency of task completion, visual search, visual processing and gaze transfer analysis based on Markov chain model. The results showed that after eye movement training, the last completion time of the subjects was 101.5 s less than that of the first completion time. Compared with the video training method, the fixation behavior of the eye movement group changed significantly before and after training, the ratio of fixation to saccade time increased by 38%, the fixation time to the target area increased, the eye jump amplitude increased by 0.58 掳, and the probability of the subjects transferring the injection point to the instrument decreased by 15%. The results of this paper show that the application of line-of-sight tracking technology can be extended to laparoscopic simulation training, and the skill level of the subjects can be improved and the learning curve can be shortened by learning the gaze strategy of experts.
【作者单位】： 上海理工大学医疗器械与食品学院;
【分类号】：R61
，
本文编号：2519856
[Abstract]:At present, in the related research of laparoscopic training in China, researchers focus on the movement path of instruments in hand-eye coordination relationship, ignoring the guiding role of vision in laparoscopic training. Other studies have shown that the level of perceptual and motor skills can be improved by watching training. The purpose of this paper is to explore the effectiveness of line of sight tracking in laparoscopic simulation training and to analyze the fixation strategies of subjects under different training methods. In this paper, the Tobii X1 Light eye movement instrument is used to track the position of the eyes when the subjects carry out the left and right shift ring tasks in the surgical training box, and the indexes to characterize the fixation strategy are obtained: the efficiency of task completion, visual search, visual processing and gaze transfer analysis based on Markov chain model. The results showed that after eye movement training, the last completion time of the subjects was 101.5 s less than that of the first completion time. Compared with the video training method, the fixation behavior of the eye movement group changed significantly before and after training, the ratio of fixation to saccade time increased by 38%, the fixation time to the target area increased, the eye jump amplitude increased by 0.58 掳, and the probability of the subjects transferring the injection point to the instrument decreased by 15%. The results of this paper show that the application of line-of-sight tracking technology can be extended to laparoscopic simulation training, and the skill level of the subjects can be improved and the learning curve can be shortened by learning the gaze strategy of experts.
【作者单位】： 上海理工大学医疗器械与食品学院;
【分类号】：R61
，
本文编号：2519856
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