公开(公告)号：US5687737A

公开(公告)日：1997-11-18

申请号：US331752

申请日：1994-10-31

申请人： Barry H. Branham ,  James L. Cox ,  John P. Boineau ,  Richard B. Schuessler

发明人： Barry H. Branham ,  James L. Cox ,  John P. Boineau ,  Richard B. Schuessler

IPC分类号： A61B5/042 ,  A61B5/044

CPC分类号： A61B5/0422 ,  A61B2562/0209 ,  A61B2562/046 ,  A61B2562/164

摘要： An optimal electrophysiologic mapping system for map-directed arrhythmia surgery and cardiac research allows rapid and accurate interpretation of cardiac activation sequences. The system can display activation or potential distribution data on an anatomically accurate 3-D model of the heart and allows fast, interactive control of viewing characteristics, including control of which cardiac surfaces are displayed, control of virtual lighting, rotational control of the displayed image, etc. The system employs two computer programs, GETPIC3 and MAP3, and runs on a Silicon Graphics workstation capable of rapid graphics calculations and displays. The system utilizes 3-D models of epicardial and endocardial surfaces created with the GETPIC3 program from a sequence of 2-D images of a heart. The individual surfaces are triangulated and may be smoothed using a spline function. The MAP3 program displays activation times either as static isochronous maps or as dynamic time-since-last-activation maps. In the latter case, surface color denotes the time elapsed since a particular area activated. Potential distribution data may also be displayed dynamically. A mouse allows the system operator to control real-time rotation of the model in three dimensions, and any surface can be hidden interactively for better viewing of the data. Control is also provided over the starting, stopping, reversing, and repeating of data, as well as over the frame rate for dynamic displays.

摘要翻译： 用于地图导向心律失常手术和心脏研究的最佳电生理映射系统可以快速准确地解释心脏激活序列。 该系统可以在心脏的解剖学上精确的3-D模型上显示激活或潜在的分布数据，并允许对观看特征的快速，交互式控制，包括显示哪个心脏表面的控制，虚拟照明的控制，显示图像的旋转控制 等等。该系统采用两个计算机程序GETPIC3和MAP3，并运行在能够快速图形计算和显示的Silicon Graphics工作站上。 该系统利用由心脏的2-D图像序列用GETPIC3程序创建的心脏和心内膜表面的3D模型。 各个表面被三角测量，并可以使用样条函数进行平滑处理。 MAP3程序显示激活时间作为静态等时图或动态时间自上次激活映射。 在后一种情况下，表面颜色表示从特定区域激活以来经过的时间。 潜在分布数据也可以动态显示。 鼠标允许系统操作员以三维方式控制模型的实时旋转，并且任何表面可以被交互地隐藏以更好地观看数据。 还提供数据的启动，停止，反转和重复以及动态显示的帧速率的控制。