64导心外膜Mapping系统的研制  

The Development of a 64-Channel Epicardial Mapping System

作　　者：侯凤贞[1] 陈颖[1] 宁新宝[1] 贾朝相[2] 王东进[2] 

机构地区：[1]南京大学电子科学与工程系,南京210093 [2]南京市鼓楼医院心胸外科,南京210008

出　　处：《微处理机》2006年第6期116-118,共3页Microprocessors

摘　　要：心外膜Mapping标测是一种精确测量和观察分析心脏电活动的方法,辅以直观的实时显示图能为外科及内科医生提供一条准确迅速的判断指标。介绍了64导心外膜Mapping标测系统的硬件设计以及软件分析方法。系统的硬件部分由电极、64路放大器、PCI数据采集卡、计算机以及输出设备组成。软件分析部分包括软件滤波、数据插值、特征点提取以及实时彩色等势图和等时图的绘制。Epicardial mapping is a method of observing, detecting and analyzing cardiac eleetropotential signals with precision. Doctors can clearly acquire information of blood - supply in the isehemia myoeardium through real - time potential map or activation map during the bridging operation of coronary artery. In this paper, We describe the hardware platform which is composed of electrodes, 64 - channel synchronous amplifier, PCI data -sampling card, computer etc. Our software system consists of filter, interpolation, abstraction of characteristic points, colorful equipotential diagram and isochronograph etc.

关 键 词：心外膜Mapping标测 等势图 等时图 硬件设计 软件分析 

分 类 号：TH776.1[机械工程—仪器科学与技术] R540.41[机械工程—精密仪器及机械]