基于光学定位技术的计算机辅助穿刺导航系统研制  

Computer-aided puncture navigation system based on optical positioning

作　　者：王健[1] 李文浩[2] 葛云[2] 

机构地区：[1]常熟市第二人民医院医学工程部,江苏常熟215500 [2]南京大学电子科学与工程学院,江苏南京210046

出　　处：《中国医学物理学杂志》2016年第2期162-166,共5页Chinese Journal of Medical Physics

基　　金：江苏省科技支撑计划(BE2012158)

摘　　要：目的:设计了一种基于光学定位技术的计算机辅助穿刺导航系统。该系统主要由硬件及软件模块组成,可实现DICOM数据读取、标记病灶、穿刺路径规划、穿刺路径评估、三维显示、实时监控等功能。方法:该系统通过红外跟踪设备实时获取病人与穿刺针上红外定位球的位置信息,将该信息传输给软件系统,软件系统实时计算穿刺针与病灶之间的相对位置,并在三维中实时渲染,为医生提供实时可视化的穿刺引导。结果和结论:实验显示系统的穿刺精度可以达到2 mm以内,标准差为0.3 mm左右,提高了穿刺精度,缩短了穿刺手术时间,并实现了穿刺过程的实时监控。系统使得穿刺更加方便、迅速、精确。Objective A computer-aided puncture navigation system based on optical positioning is designed. The system mainly consists of hardware and software modules, achieving DICOM data reading, focus marking, puncture path planning, puncture path evaluating, three-dimensional （3D） displaying, real-time monitoring and so on. Methods The real-time location of infrared passive marker spheres on the patient and puncture needle were obtained by the infrared tracking equipment of the system. And the location information was transferred to the software system to calculate the relative position between the puncture needle and the focus, and to render the relative position in 3D model in real-time, providing real-time and visual puncture guidance for doctors. Result and Conclusion The puncture accuracy of system reaches 2 mm; the standard deviation is about 0.3 mm. The system improves the puncture accuracy, shortens the time for puncture, and realizes the real-time monitoring of puncture, leading to a more convenient, quicker and more accurate puncture.

关 键 词：穿刺 导航 计算机辅助 光学定位 

分 类 号：R318.6[医药卫生—生物医学工程]