Dipole localization in patients with epilepsy using the realistically shaped head model

被引：71

作者：

Roth, BJ ^{[1
]}

Ko, D ^{[1
]}

vonAlbertiniCarletti, IR ^{[1
]}

Scaffidi, D ^{[1
]}

Sato, S ^{[1
]}

机构：

[1] NINCDS,CLIN NEUROPHYSIOL UNIT,EPILEPSY RES BRANCH,NIH,BETHESDA,MD 20892

来源：

ELECTROENCEPHALOGRAPHY AND CLINICAL NEUROPHYSIOLOGY | 1997年 / 102卷 / 03期

基金：

英国惠康基金;

关键词：

epilepsy; EEG; dipole; localization; realistically shaped head model; three-sphere model;

D O I：

10.1016/S0013-4694(96)95111-5

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Dipole sources were localized in 3 patients with epilepsy using both the realistically shaped head model and the 3-sphere model. Interictal spikes were recorded from 63 closely spaced scalp electrodes. The scalp, skull, and brain surfaces were digitized from a MRI of each patient's head, and each surface was tessellated by 1600 triangles. Single dipole fits to the EEG were performed using both the realistically shaped head model and the 3-sphere model. The 2 models localized dipoles to positions that differed from one another by 1-3 cm. For dipoles localized to the temporal lobe, the most important difference between models was that the realistically shaped head model localized the dipole lower in the brain than the 3-sphere model. The realistically shaped head model was more in accordance with the ECoG findings than the 3-sphere model. (C) 1997 Elsevier Science Ireland Ltd.

引用

页码：159 / 166

页数：8

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