一种基于解剖的高分辨心脏电活动模型

A HIGH RESOLUTION MODEL OF CARDIAC ELECTRICAL ACTIVITY

提出了一种基于解剖数据的具有真实形状的高分辨心脏电活动模型，它不仅是一个自兴奋模型，而且在模型分辨率方面得到了更大的改善。同时，采用了改进的兴奋传播算法，避免了精度的损失。此外，在计算电流偶极矩时，考虑了所有相邻单元的贡献，使得模型更符合实际情况，精度得到进一步提高，所得结果与电生理实验数据基本吻合。

We developed a high resolution model of human cardiac electrical activitvbased on anatomic data It is not only an auto-excited model whose excitation sequence resultsfrom the model itself, but also a higher resolution one with 274,520 units,Meanwhile weadopted the excitation time to mark each unit instead of the time step previously used in theexcitation propagation algorithm This development deleted the accuracy loss in 26-neighborstructure. In addition,the contribution of all 26 neighbors is considered when calculating thecurrent dipole movement of each unit.So the model is more closed to reality and the accuracyis enhanced.