A Navigation System of Cerebral Endovascular Surgery Integrating Multiple Space-Guiding Trackers

• Main Authors: Ting-An Chien, 簡廷安
• Other Authors: Jiann-Der Lee
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/28861139402572421706

碩士 === 長庚大學 === 醫療機電工程研究所 === 96 === This paper presents a navigation system which combines multiple space-guiding trackers for cerebral endovascular surgery. The proposed system not only provides 2-D and 3-D visualization of medical images but also integrates an ICP-based algorithm to increase the registration accuracy for further cerebral endovascular navigation. This tracking system integrates a mechanical digitizer, an optical tracker and an electromagnetic sensor to increase the flexibility in clinical application. An ICP-based registration algorithm is proposed to dynamically correct the registration error according to the current observation of the cerebral endovascular. The proposed system is tested using a plastic phantom with cerebral endovascular structures. Experimental results show that the proposed method can reduce the error from 5.21~6.47mm to 2.29~2.87mm. It is shown that the proposed system is useful for further cerebral endovascular surgery.