头部模型在生物磁源定位中的影响。

Influence of head model in biomagnetic source localization.

作者信息

Tomita S, Kajihara S, Kondo Y, Yoshida Y, Shibata K, Kado H

机构信息

Keihanna Research Laboratory, Shimadzu Corporation, Kyoto, Japan.

出版信息

Brain Topogr. 1996 Spring;8(3):337-40. doi: 10.1007/BF01184795.

DOI:10.1007/BF01184795

PMID:8728429

Abstract

We evaluated the influence of the head model on biomagnetic source localization by utilizing a computer simulation. We localized the source of a magnetic field that was calculated using a realistic head model, and then evaluated the localization errors. It was seen that the sphere model adequately localized the dipole in cases near the sensor, but not in cases where the dipole was deeply situated.

摘要

我们通过计算机模拟评估了头部模型对生物磁源定位的影响。我们对使用逼真头部模型计算出的磁场源进行了定位，然后评估了定位误差。可以看出，在偶极子靠近传感器的情况下，球体模型能够充分定位偶极子，但在偶极子位置较深的情况下则不能。