摘要
心内膜标测系统中,三维心内膜几何模型的构建是一个重大进步,在手术中导航导管起着关键的作用。本文介绍了一种利用凸包算法,从心腔内导管电极的位置信息中提取建模数据的方法。并用Matlab仿真,证明该法可以筛除心腔内的数据点,而提取心内膜表面上的点,构建心腔舒张期的三维心内膜模型。
The ability to reconstruct a 3-D geometric model of the endocardium is a useful advancement in the endocardial mapping system,which is a key step for catheter navigation during the operation.In this paper,a method based on convex hull algorithm is presented for extracting modeling data from the location of catheter electrodes within a cardiac chamber.Employing this method by Matlab,intracavitary points are eliminated,and a set of extrema are gained used to create a 3-D model of heart chamber during diastole.
作者
陆颖
奚日辉
沈海东
叶有利
Lu Ying;Xi Rihui;Shen Haidong;Ye Youli(School of Communication and Information Engi-neering,Shanghai University,China,200072;Shanghai HongTong Industry Co.,LTD,Room 306,Tower 14,No.470 Guiping Road,Shanghai,Chína,200233)
出处
《微计算机信息》
北大核心
2006年第05S期213-215,共3页
Control & Automation
基金
上海市科技攻关项目(编号041111010)
关键词
心内膜标测
三维重建
凸包
endocardial mapping
3-D reconstruction
convex hull
