三维非均匀心脏-躯干模型中心室起搏期间体表拉普拉斯图的模拟
Simulation of body surface Laplacian maps during ventricular pacing in a 3D inhomogeneous heart-torso model.
作者信息
Wu D, Ono K, Hosaka H, He B
机构信息
Department of EECS, University of Illinois, Chicago, USA.
出版信息
Methods Inf Med. 2000 Jun;39(2):196-9.
A computer simulation study has been conducted to investigate the performance of body surface Laplacian maps (BSLMs) in localizing and imaging spatially separated myocardial electrical events. A cellular automaton model of ventricles simulates cardiac electrical activity using a two-site pacing protocol to induce dual simultaneously active myocardial electrical events. The heart model is embedded in a realistically shaped inhomogeneous volume conductor. The BSLMs are numerically computed from the induced electrical activity in the heart model. The present computer simulation results show that the BSLM can provide better separation and localization of two regional myocardial electrical events as compared with the body surface potential map (BSPM).
已开展一项计算机模拟研究，以调查体表拉普拉斯图（BSLMs）在定位和成像空间分离的心肌电活动方面的性能。心室的细胞自动机模型使用双部位起搏方案模拟心脏电活动，以诱发两个同时活跃的心肌电活动。心脏模型嵌入形状逼真的非均匀容积导体中。BSLMs通过心脏模型中诱发的电活动进行数值计算。目前的计算机模拟结果表明，与体表电位图（BSPM）相比，BSLM能够更好地分离和定位两个局部心肌电活动。
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