Conductivities of three-layer human skull

被引：30

作者：

Akhtari, M

Bryant, HC

Mamelak, AN

Heller, L

Shih, JJ

Mandelkern, M

Matlachov, A

Ranken, DM

Best, ED

Sutherling, WW

机构：

[1] Huntington Mem Hosp, Epilepsy & Brain Mapping Program, Pasadena, CA 91105 USA

[2] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA

[3] Univ New Mexico, Sch Med, Dept Neurol, Albuquerque, NM 87131 USA

[4] Univ New Mexico, Sch Med, Dept Neurosci, Albuquerque, NM 87131 USA

[5] Univ Calif Irvine, Dept Phys, Irvine, CA 92717 USA

[6] Los Alamos Natl Lab, Div Phys, Los Alamos, NM USA

来源：

BRAIN TOPOGRAPHY | 2000年 / 13卷 / 01期

关键词：

conductivity; skull; human; inhomogeneity; spongiosum; compact layer;

D O I：

10.1023/A:1007882102297

中图分类号：

R74 [神经病学与精神病学];

学科分类号：

摘要：

In this study, electrical conductivities of compact, spongiosum, and bulk layers of cadaver skull were determined at varying electric fields at room temperature. Current was applied and withdrawn over the top and bottom surfaces of each sample and potential drop across different layers was measured using the four-electrode method. We developed a model, which considers of variations in skull thicknesses, to determine the conductivity of the tri-layer skull and its individual anatomical structures. The results indicate that the spongiform and the two compact layers of the skull have significantly different and inhomogeneous conductivities ranging from 0.76 +/- .14 to 11.5 +/- 1.8 milliS/m.

引用

页码：29 / 42

页数：14

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