Wen P
Faculty of Engineering and Surveying, University of Southern Queensland, Toowoomba, 4350 QLD, Australia.
Australas Phys Eng Sci Med. 2003 Sep;26(3):115-8. doi: 10.1007/BF03178780.
This paper investigates the influence of inhomogeneous head tissue conductivity on EEGs. A head model with inhomogeneity of radial and tangential conductivity is built up. Based on this model the EEG signals are calculated using the finite elements method. The results show that the inhomogeneous radial and tangential conductivity of skull tissue, which has been ignored so far, can cause about 5% difference compared with commonly used homogeneous conductivity head models.
本文研究了头部组织电导率不均匀性对脑电图的影响。建立了一个径向和切向电导率具有不均匀性的头部模型。基于该模型，使用有限元方法计算脑电图信号。结果表明，迄今为止一直被忽略的颅骨组织径向和切向电导率不均匀性，与常用的均匀电导率头部模型相比，可能会导致约5%的差异。
