心室各表面の各種誘導點に及ぼす電位及び其の臨床心電図,臨床ベクトル心電圖への應用に就いて(第一部)

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概要

• 論文の詳細を見る

• According to the new membrane theory of Wilson, the potential of a given point without heart is determined by the solid angle subtended by activated heart region to that point. So it is important for analysis of electrocardiogram and ventricular excitatory process to measure the solid angle subtended by activated heart region to each leading point. But I have not ever seen the literature in which the potential at leading point was gotten by measuring the solid angle actually. In this paper, the solid angles subtended by unit area to various points to lead were measured dividing the ventricular surface in 94 unit areas in total and the potentials at various points to lead were calculated from equation described as follows. V_b≒φ/kΩ V_b is the potential at a given point on body surface. k is a coefficient concerning dielectric constant e. Ω is the solid angle subtended by activated heart region to that point. The solid angle Ω can be obtained from equation Ω≒(S・cosθ)/(r^2) S is a area of equivalent double layer. r is a distance from leading point to the center of equivalent double layer. θ is an angle made by outward normal at the center of equivalent double layer and the line from leading point to that center. Relationship between the heart position and thorax of cadaver having had no heart disease was measured by autopsy. Then the plaster models of that heart and thorax was replaced in their position. On this heart-thorax model, θ and r were measured at various points to lead namely the points by Vectorpolyography, Schellong-Toyoshima's-, spatial-vectorcardiography and unipolar lead electro-cardiography in frontal, sagittal and horizontal plane. Then potential at various points to lead was obtained from equations above mentioned. The application of this results to clinical electrocardiography and vectorcardiography shall be reported in the second part of this report.

• 社団法人日本循環器学会の論文
• 1954-09-20

著者

• 山田 和生

  名大第1内科

• 山田 和生

  名古屋大學環境醫學部内科第1講座

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• 心室各表面の各種誘導點に及ぼす電位及び其の臨床心電圖,臨床ベクトル心電圖への應用に就いて : 第2部
• 心室各表面の各種誘導點に及ぼす電位及び其の臨床心電図,臨床ベクトル心電圖への應用に就いて(第一部)
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• 心室各表面の各種誘導点に及ぼす電位及び其の臨床心電図,臨床ベクトル心電図への応用に就いて-1-
• 69) ベクトルポリオグラフイの單極誘導法的考察 : 正常人及び左室肥大患者のQRS環に就て(一般演説,第16回日本循環器學會總會)

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