Comparative analysis of surgical processes for image-guided endoscopic sinus surgery
Comparative analysis of surgical processes for image-guided endoscopic sinus surgery
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DOI：
10.1007/s11548-018-1855-y
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发表时间：
2019-01-01
影响因子：
3
通讯作者：
Ohtori, Nobuyoshi
中科院分区：
文献类型：
--
作者：
Sugino, Takaaki;Nakamura, Ryoichi;Ohtori, Nobuyoshi
目的本研究提出了一种方法来分析手术性能的建模，对齐，并比较手术过程。该方法旨在作为一种手段，以支持增强内窥镜鼻窦手术（ESS）的手术技能。我们专注于手术导航系统中使用的图像引导ESS和目的是构建一个比较分析方法的基础上获得的信息的手术器械运动从导航系统的手术过程。方法该方法包括以下三个部分：手术特征的量化，手术过程的建模，手术过程模型（SPM）的对齐和比较。首先，我们使用基于导航的手术数据定义时间序列参数。其次，我们通过将定义的参数和器械的相对位置信息应用于患者的解剖结构来创建SPM。第三，我们构建了一个方法来调整和比较SPM的基础上动态时间规整与重心averaging.ResultsThe所提出的方法进行了验证，包含手术数据的光学跟踪系统从14个临床ESS的情况下。我们评估的有效性比较分析对齐和比较专家和居民之间的SPM。验证结果表明，所提出的方法可以实现适当的对齐的SPM和澄清专家和resident.ConclusionWe之间的手术过程中的差异开发了一种方法，使手术过程的时间序列比较分析的基础上，从导航系统的手术数据。这种方法可以允许外科医生识别他们的程序和参考程序（例如专家程序）之间的差异。
PurposeThis study proposes a method to analyze surgical performance by modeling, aligning, and comparing surgical processes. This method is intended to serve as a means to support the enhancement of surgical skills for endoscopic sinus surgeries (ESSs). We focus on surgical navigation systems used in image-guided ESSs and aim to construct a comparative analysis method for surgical processes based on the information about the surgical instruments motion obtained from the navigation system. MethodsThe proposed method consists of the following three parts: quantification of surgical features, modeling of surgical processes, and alignment and comparison of surgical process models (SPMs). First, we defined time-series parameters using the navigation-based surgical data. Second, we created SPMs by applying the defined parameters and the relative positional information of the instruments to the patient's anatomy. Third, we constructed a method to align and compare SPMs based on dynamic time warping with barycenter averaging.ResultsThe proposed method was validated on a dataset containing surgical data obtained by an optical tracking system from 14 clinical ESS cases. We evaluated the validity of the comparative analysis by aligning and comparing SPMs between experts and residents. The validation results suggested that the proposed method could achieve proper alignment of the SPMs and clarify the differences in surgical processes between experts and residents.ConclusionWe developed a method to enable a time-series comparative analysis of surgical processes based on the surgical data from the navigation system. This method can allow surgeons to identify differences between their procedures and reference procedures such as experts' procedures.