Relationship between Deviations of Dipole Orientation and Position in MEG Topography

S. Ueno, K. Iramina

研究成果: Contribution to journalArticle査読

抄録

This study focuses on the influence of inhomogeneities in the human head on surface magnetic fields generated by radial dipoles inside the head. Using a simple inhomogeneous spherical model, components of magnetic fields perpendicular to the surface of the sphere are calculated, and the spatial distributions of MEGs are simulated. The influences of both rotation or inclination of the dipole orientation and shifting of the dipole position on the spatial distributions of MEGs were investigated. It is shown that when the dipole orientation is inclined from the radial direction, the spatial patterns of MEGs are analogous to the results when the dipole position is shifted. The effect of inhomogeneities of brain lesions on the spatial MEG patterns produced by radial dipoles is also studied.

本文言語英語
ページ(範囲)789-795
ページ数7
ジャーナルIEEE Translation Journal on Magnetics in Japan
5
9
DOI
出版ステータス出版済み - 9 1990

All Science Journal Classification (ASJC) codes

  • 工学(その他)
  • 工学(全般)

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