The Brody effect revisited.
This paper reexamines the Brody effect, both in the far-field and in the near-field approximation. It stresses the fact that near an inhomogeneity the Brody factor is not a constant but a function of space. A full documentation of this function for realistic values of the inhomogeneity as relevant to electrocardiography is included. The existence of a zone having "anomalous" Brody factors is demonstrated. Moreover, the importance for this problem of the zero reference point is stressed.
van Oosterom
A
A
Laboratory of Medical Physics and Biophysics, University of Nijmegen, The Netherlands.
Plonsey
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R
D001810:Blood Volume; D002306:Cardiac Volume; D004553:Electric Conductivity; D006321:Heart / Q000502:physiology*; D006329:Heart Conduction System / Q000502:physiology*; D008955:Models, Cardiovascular