基于矢量传播算法的束支传导阻滞QRST波形仿真

Vector Propagation Algorithm Based ECG Simulation of Bundle Branch Block

心脏生物电兴奋传播的仿真是心电正问题一个重要方面 ,仿真结果不仅是心电正问题模型精度和可靠性的判断标准 ,而且具有一定的研究和临床价值。我们对人体心脏左束支传导阻滞和右束支传导阻滞情况下心脏兴奋传播和心电 QRST波形进行了仿真。仿真过程中借助了矢量传播算法 ,该算法具有精度高、快速、适用于各向异性介质的优点。仿真结果符合临床中实测波形。

The simulation of excitation propagation's process in human heart is one of the main aspects of ECG forward problem. The simulation results not only are the criterion of the simulation model's precision and reliability, but also have great value in researches and diagnoses. We performed the simulation of QRST waves of complete left bundle branch block (LBBB) and right bundle branch block (RBBB) in virtue of a vector propagation algorithm (VPA), which is accurate, efficient and applicable to anisotropic computer heart models. The simulation results accord with the actual QRST wave in clinical practice.