3D Stomach Modeling Methods for Image-Guided Biopsy Marking System for Gastroscopy

摘要：

　　In previous research,we proposed an image-guided biopsy marking (IGBM) system for gastroscopy,which guides endoscopists to find the biopsy positions in follow-ups.The 3D stomach model is the key component of the system.In this paper,two modeling methods were proposed and evaluated.One is static modeling method based on CT scanning of the stomach before gastroscopy; the other is dynamic modeling method which utilizes real-time gastroscope video and 3D motion tracking device.The accuracy of the static modeling method was evaluated by clinical experiments and the other method was evaluated by the simulation experiment.For the static modeling method,the average target registration errors (TRE) are 13.4± 1.2 mm for test animal and 11.2 ± 1.0 mm for human volunteer; for the dynamic modeling method,the TRE is 1.8±1.0 mm.

关键词： 3D modeling of stomach image guided biopsy marking system

作者: Deyu Sun Bin Wang Jiquan Liu Huilong Duan

作者单位: Instrument Science of Zhejiang University,Hangzhou,Zhejiang 310027,China The Key Laboratory of Biomedical Engineering,Ministry of Education,China

会议类型: 国内会议

会议名称: 长江2011国际医学影像物理和工程应用大会暨第六届中国医学影像物理学术年会

会议地点: 杭州

会议语种:英文

页码: 9-16

在线出版日期: 2011-10-22（万方平台首次上网日期，不代表论文的发表时间）