Conductivities of three-layer human skull

M. Akhtari; H. C. Bryant; A. N. Mamelak; L. Heller; J. J. Shih; M. Mandelkern; A. Matlachov; D. M. Ranken; E. D. Best; W. W. Sutherling

doi:10.1023/A:1007882102297

Conductivities of three-layer human skull

M. Akhtari, H. C. Bryant, A. N. Mamelak, L. Heller, J. J. Shih, M. Mandelkern, A. Matlachov, D. M. Ranken, E. D. Best, W. W. Sutherling

Neurology

Research output: Contribution to journal › Article › peer-review

35 Scopus citations

Abstract

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 Current was applied and withdrawn over the top and bottom surfaces of each sample and potential drop across different layers was measured using the four-electrode method.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.

Original language	English (US)
Pages (from-to)	29-42
Number of pages	14
Journal	Brain Topography
Volume	13
Issue number	1
DOIs	https://doi.org/10.1023/A:1007882102297
State	Published - 2000

Keywords

Compact layer
Conductivity
Human
Inhomogeneity
Skull
Spongiosum

ASJC Scopus subject areas

Anatomy
Radiological and Ultrasound Technology
Radiology Nuclear Medicine and imaging
Neurology
Clinical Neurology

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10.1023/A:1007882102297

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title = "Conductivities of three-layer human skull",

abstract = "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 Current was applied and withdrawn over the top and bottom surfaces of each sample and potential drop across different layers was measured using the four-electrode method.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.",

keywords = "Compact layer, Conductivity, Human, Inhomogeneity, Skull, Spongiosum",

author = "M. Akhtari and Bryant, {H. C.} and Mamelak, {A. N.} and L. Heller and Shih, {J. J.} and M. Mandelkern and A. Matlachov and Ranken, {D. M.} and Best, {E. D.} and Sutherling, {W. W.}",

note = "Funding Information: This research was supported by Public Health Service grant R01 NS20806 from the National Institutes of Neurological Diseases and Stroke, the Epilepsy Branch. The research also was supported by Huntington Medical Research Institutes, Huntington Hospital, the Lincy Foundation, and Zielstra family. We thank Dr. Blaine Hart at the Department of Neuroradiology, University of New Mexico, for providing the x-ray images used in this study; Dr. Robin Cantor of STAR Cryoelectronics, for advice on indium electrodes, and Maurizio DeMauro for his help in development of the automated data acquisition system software. LAUR# LA-UR-00-1756.",

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doi = "10.1023/A:1007882102297",

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T1 - Conductivities of three-layer human skull

AU - Akhtari, M.

AU - Bryant, H. C.

AU - Mamelak, A. N.

AU - Heller, L.

AU - Shih, J. J.

AU - Mandelkern, M.

AU - Matlachov, A.

AU - Ranken, D. M.

AU - Best, E. D.

AU - Sutherling, W. W.

N1 - Funding Information: This research was supported by Public Health Service grant R01 NS20806 from the National Institutes of Neurological Diseases and Stroke, the Epilepsy Branch. The research also was supported by Huntington Medical Research Institutes, Huntington Hospital, the Lincy Foundation, and Zielstra family. We thank Dr. Blaine Hart at the Department of Neuroradiology, University of New Mexico, for providing the x-ray images used in this study; Dr. Robin Cantor of STAR Cryoelectronics, for advice on indium electrodes, and Maurizio DeMauro for his help in development of the automated data acquisition system software. LAUR# LA-UR-00-1756.

PY - 2000

Y1 - 2000

N2 - 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.

AB - 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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KW - Inhomogeneity

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Conductivities of three-layer human skull

Abstract

Keywords

ASJC Scopus subject areas

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