再探布罗迪效应。

The Brody effect revisited.

作者信息

van Oosterom A, Plonsey R

机构信息

Laboratory of Medical Physics and Biophysics, University of Nijmegen, The Netherlands.

出版信息

J Electrocardiol. 1991 Oct;24(4):339-48. doi: 10.1016/0022-0736(91)90016-f.

DOI:10.1016/0022-0736(91)90016-f

PMID:1744546

Abstract

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.

摘要

本文重新审视了布罗迪效应，包括远场和近场近似情况。它强调了这样一个事实，即在不均匀性附近，布罗迪因子不是一个常数，而是空间的函数。本文还给出了与心电图相关的不均匀性实际值下该函数的完整记录。文中证明了存在具有“异常”布罗迪因子的区域。此外，还强调了零参考点对该问题的重要性。