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1. 发明授权

US5311873A Comparative analysis of body surface potential distribution during cardiac pacing 失效
标题翻译：心脏起搏期间体表电势分布的比较分析
公开(公告)号：US5311873A
公开(公告)日：1994-05-17
申请号：US937487
申请日：1992-08-28
申请人： Pierre Savard , Reginald Nadeau , Marc Dubuc
发明人： Pierre Savard , Reginald Nadeau , Marc Dubuc
IPC分类号： A61N1/08 , A61N1/36 , A61N1/372 , A61N1/00
CPC分类号： A61N1/36014 , A61N1/08 , A61N1/372 , A61B2034/2053
摘要： Body surface potential map (BSPM) pace-mapping is a system and method that can be used in medicine to localize with precision the site of origin of abnormal cardiac electrical activity and to guide the positioning of a catheter over this site of origin, such as the site of ventricular preexcitation in patients with the Wolff-Parkinson-White syndrome or the focus of ectopic activity in patients with tachycardia. Body surface potential distributions are measured with a large number of electrodes, e.g. 24 to 128, distributed over the entire torso surface. The electrical signals are first amplified, converted into digital data and treated to remove electrical or muscle artifacts. Data recorded during abnormal activation (reference beat) are aligned with data recorded during cardiac pacing (paced beat) so as to maximize the average value of the correlation coefficient between the reference and the paced potential distributions during a preset time interval following the beginning of the QRS complex. Reference and paced maps showing color-coded isopotential contour lines are displayed side by side for the same time instant. Visual analysis of these maps according to previously published criteria determines the relative position of the pacing catheter with respect to the focus of abnormal activation, and gives information so as to guide the catheter toward the focus.
摘要翻译：身体表面电位图（BSPM）速度绘图是一种可用于医学中的系统和方法，用于精确定位异常心脏电活动的原点，并引导导管在该原点位置的定位，例如患有Wolff-Parkinson-White综合征患者心室预激的部位或心动过速患者异位活动的重点。用大量的电极测量体表面电位分布，例如， 24到128，分布在整个躯干表面。电信号首先被放大，转换成数字数据并被处理以去除电或肌肉伪像。在异常激活期间记录的数据（参考拍子）与在心脏起搏（起搏节拍）期间记录的数据对准，以便在开始之后的预设时间间隔期间使参考和起搏电位分布之间的相关系数的平均值最大化 QRS综合显示彩色等电位轮廓线的参考和节奏地图在同一时刻并排显示。根据先前发布的标准的这些图的视觉分析确定起搏导管相对于异常激活的焦点的相对位置，并且给出信息以引导导管朝向焦点。

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