论文标题
跟踪基于电磁传感器的结肠镜跟踪方法的精度评估方法
Tracking accuracy evaluation of electromagnetic sensor-based colonoscope tracking method
论文作者
论文摘要
本文报告了结肠镜跟踪方法的详细评估结果。已经提出了一种利用电磁传感器和CT体积的结肠镜跟踪方法。使用结肠幻影评估了该方法的跟踪精度。在先前提议的论文中，仅在结肠幻影上的六个点测量跟踪误差以进行准确评估。点数不足以评估跟踪误差与结肠位置之间的关系。在本文中，我们根据跟踪误差的更详细的测量结果评估了结肠镜跟踪方法。我们测量了结肠幻像的52点跟踪误差，并可视化跟踪误差的幅度。从我们的实验中，跟踪上升和降结肠中的错误足以进行结肠镜导航。但是，由于结肠变形，跟踪横向和下降结肠中的误差很大。
This paper reports a detailed evaluation results of a colonoscope tracking method. A colonoscope tracking method utilizing electromagnetic sensors and a CT volume has been proposed. Tracking accuracy of this method was evaluated by using a colon phantom. In the previously proposed paper, tracking errors were measured only at six points on the colon phantom for the accuracy evaluation. The point number is not enough to evaluate relationships between the tracking errors and positions in the colon. In this paper, we evaluated the colonoscope tracking method based on more detailed measurement results of the tracking errors. We measured tracking errors at 52 points on the colon phantom and visualized magnitudes of the tracking errors. From our experiments, tracking errors in the ascending and descending colons were enough small to perform colonoscope navigations. However, tracking errors in the transverse and descending colons were large due to colon deformations.
