Conformal Mapping Method for Inverse Problem of Biological. Body Surface Potential and Electric Field Distribution

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  • 生体表面電位電界分布に関する逆問題の等角写像による考察
  • セイタイ ヒョウメン デンイ デンカイ ブンプ ニ カンスル ギャク モンダイ

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Abstract

Electrocardiogram has been developed to biological body surface potential, by many-points measurement on body surface, increasing measurement points from 3 points to a, few hundreds points. Medical body surface potential problems are very important for practical clinical technology, and these concern the electromagnetic field problems of electric current generated from cardiac cells of the heart, and have boundary value problems of Neuman type.<br>Analytical methods and numerical methods, such as finite element methods, have been used to obtain approximate inverse solutions for medical or biological body surface potential problems. However, exact inverse solutions of inverse potential problems on cardiac current fields have not been derived. In this paper, conformal mapping method, using singular potential functions and image method, is shown to give precise inverse solution for cardiac body potential problems.

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