Lammers W J, el-Kays A, Arafat K, el-Sharkawy T Y
Department of Physiology, Faculty of Medicine and Health Sciences, United Arab Emirates University, Al Ain.
Med Biol Eng Comput. 1995 May;33(3 Spec No):476-81. doi: 10.1007/BF02510533.
High-resolution mapping makes it possible to reconstruct and display the conduction pattern of the action potential as it propagates through cardiac or smooth muscles. During slow and regular activity, time mapping of the spread of activation muscles. During slow and regular activity, time mapping of the spread of activation is relatively simple and straightforward. However, when frequencies are high or conduction is slow, such as seen during atrial fibrillation or found in the pregnant uterus, the tracking of individual waves may become more difficult and uncertain. In order to reconstruct the pathway of a single wave, a search and sorting routine was developed which makes it possible to distinguish, track and display individual wavelets. The algorithm is able to detect variations in conduction block, spontaneous shifts in the location of the pacemaker and changes in the direction of conduction. It is less sensitive when two or more wavefronts intermingle in space and time, such as during collision or fusion. Wave mapping is especially useful, in addition to current time mapping, in sorting quickly through the large amount of data produced by high-resolution mapping of electrical activities in cardiac and smooth muscle.
高分辨率映射使得在动作电位通过心肌或平滑肌传播时重建并显示其传导模式成为可能。在缓慢且规律的活动期间，对激活肌肉传播进行时间映射。在缓慢且规律的活动期间，激活传播的时间映射相对简单直接。然而，当频率较高或传导较慢时，如在心房颤动期间所见或在妊娠子宫中发现的情况，追踪单个波可能会变得更加困难和不确定。为了重建单个波的路径，开发了一种搜索和排序程序，该程序能够区分、追踪并显示单个小波。该算法能够检测传导阻滞的变化、起搏器位置的自发移位以及传导方向的改变。当两个或更多波前在空间和时间上相互交织时，如在碰撞或融合期间，它的敏感性较低。除了当前的时间映射外，波映射在快速梳理由心脏和平滑肌电活动的高分辨率映射产生的大量数据方面特别有用。
