心内膜几何模型的计算机三维重建技术  

Computer 3-D Reconstrucion Technology of Endocardial Geometry

作　　者：陆颖[1] 奚日辉[1] 沈海东 叶有利 

机构地区：[1]上海大学通信与信息工程学院,上海市延长路149号200072 [2]上海宏桐实业有限公司

出　　处：《微计算机信息》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)

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.

关 键 词：心内膜标测 三维重建 凸包 

分 类 号：TP311.1[自动化与计算机技术—计算机软件与理论]