基于MRI数据的真实头有限元模型构造方法

Finite Element Modeling of Realistic Human Head from MRI Data

构造人体头部的有限元模型是开展基于有限元素法研究脑电现象的先决条件。利用图像分割和网格剖分技术提出了一种完全基于原始MRI数据的真实头有限元模型构造方法。通过该方法构造了一个包含5种组织的真实头有限元模型,将该模型应用到基于有限元素法的脑电计算中,结果显示利用该方法构造出的模型真实可信。

The FEM geometry modeling of realistic head is a key issue for the research on FEM-based EEG/MEG.In this paper,by the technology of image segmentation and mesh generation,a methodology is developed to construct this kind of model based on original MRI data.Through this method,a five-layers realistic head FEM model is obtained,and with its application in FEM-based EEG,a satisfying result shows the reliability of the model.