期刊
BRAIN TOPOGRAPHY
卷 13, 期 1, 页码 29-42出版社
SPRINGER
DOI: 10.1023/A:1007882102297
关键词
conductivity; skull; human; inhomogeneity; spongiosum; compact layer
资金
- NINDS NIH HHS [R01 NS20806] Funding Source: Medline
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 Current was applied and withdrawn over the top and bottom surfaces of each sample and potential drop across different layers was measured using the four-electrode method.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.
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