On the Determination of Cardiac Electromotiveforce from Body Surface Potential Distribution
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概要
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To estimate cardiac electromotiveforce from electrocardiography, some methods which determine internal electrical sources from the surface potential of the human body have been analyzed. Body is approximated as a homogeneous conductor having a simple shape such as cuboid or cylinder. It is proved that the surface potential determines the potential in a harmonic region, and the sources such as point sources, dipoles, multipole, single layer or double layer, except some 3-dimensionally distributed sources. However, the distance between the source and the surface under consideration acts as a low pass filter for spatial frequency, and practically, the potential is measurable at a finite number of surface points, with various kinds of noise. Therefore, precise determination of sources is restricted by the accuracy of the measurement of surface potential.
- 一般社団法人 日本生体医工学会の論文
一般社団法人 日本生体医工学会 | 論文
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