Effects of inhomogeneities in cerebral modeling for magnetoence phalography

S. Ueno, K. Iramina, K. Harada

研究成果: Contribution to journalArticle査読

13 被引用数 (Scopus)

抄録

A current dipole, which is located in a homogeneous sphere and orients radially, produces no magnetic fields outside the sphere. This theory of null-field is widely used in understanding the magneto-encephalography In the present report, effects of inhomogeneities in the head on the surface magnetic fields which are produced by radially oriented dipoles are investigated. It is shown that normal components of magnetic fields perpendicular to the surface of the sphere generated by radial dipoles are determined by volume currents. The flow patterns of volume currents are strongly affected by local inhomogeneities inside the body when the primary current source is located near the boundaries of inhomogeneous regions.

本文言語英語
ページ(範囲)3753-3755
ページ数3
ジャーナルIEEE Transactions on Magnetics
23
5
DOI
出版ステータス出版済み - 9 1987

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 電子工学および電気工学

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