B样条在三维心外膜动态标测模型仿真中的应用

The Application of Multilevel B-Splines in 3D Emulation of Dynamic Epicardium Mapping

为了实现全心房标测，利用多层次 B 样条插值算法实现全心房表面模型的曲面拟合，给出多层次双三次均匀 B 样条插值 算法和插值结果，生成三维波动图。结果表明，使用该方法能够直观反映房颤等复杂性心律失常除极波的非规则传导过程。

This paper presents an algorithm for data interpolation and approximation used in the whole atria mapping. Multilevel B-splines are introduced to compute the whole atriasurface through a set of irregularly spaced points and to draw the 3D isopotential map, which can reflect the conduction process of depolarization in complex arrhythmia such as atrial fibrillation.