计算机辅助外科手术精度的研究  

The Research on Accuracy of Computer-Assisted Surgery

作　　者：孙九爱[1] 秦斌杰[1] 庄天戈[1] 

机构地区：[1]上海交通大学生物医学工程系(上海,200030

出　　处：《中国医疗器械杂志》2002年第6期414-417,共4页Chinese Journal of Medical Instrumentation

基　　金：中法科技合作项目A类第87号;上海市科学发展基金资助项目(985107016)

摘　　要：计算机辅助外科手术系统由立体定位和图像配准两部分组成。整个系统的精度表现为由术前多模医学图像数据重建所得的虚拟空间和术中实际空间的匹配效果的好坏上。系统精度也由定位系统的精度和图像配准的精度组成,而术中的配准精度有依赖于立体定位系统的精度,因此定位的精度是影响整个系统精度的重要因素。最后全面地给出了影响计算机辅助外科手术的可能的误差源。The computer-assisted surgery system is a complex system. All of the errors can be attributed to the loss of correspondence between the world coordinate system in the operation room and the virtual world coordinate system obtained from the multi-model medical images. The system's accuracy is composed of the accuracy of the localizer and that of registration.In order to improve the system accuracy, we analyse most of the possible error sources. The accuracy of the localizer affects deeply the registration between the intra-operation and pre-operation data.The localizer is the most basic and important part for a computer-assisted surgery system. We give a comprehensive possible error source at the end of the paper.

关 键 词：计算机辅助外科手术 手术精度 手术定位 配准 立体定位系统 

分 类 号：R61[医药卫生—外科学]