A Comparative Study of Four Lead Systems of Vectorcardiography
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概要
- 論文の詳細を見る
(1) Vectorcardiographic tracings were taken by 4 different lead systems, viz., Cube system by Grishman, Equilateral tetrahedron system by Wilson, Orthogonal lead systems by Frank and by Schmitt in 17 normal subjects, 36 cases with coronary sclerosis and 20 cases with valvular heart disease. The direction of the inscription of QRS-loop, the direction of the half area vector and the maximal amplitude of X, Y and Z components of the loop were examined.(2) Very similar tracings can be obtained by Frank and Schmitt lead systems in most cases. (3) In normal subjects, agreement of the 4 lead systems was satisfactory, but in patients with coronary sclerosis and valvular disease, these 4 lead systems could not be considered interchangeable. (4) Compared with orthogonal system by Frank or Schmitt, Z component in Grishman's system is smaller and Y component in Wilson's system is larger.
- International Heart Journal刊行会の論文
著者
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Murao Satoru
Second Department Of Internal Medicine Faculty Of Medicine University Of Tokyo
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Mashima Saburo
Second Department Of Internal Medicine University.
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Ueda Hideo
Second Department Of Internal Medicine Faculty Of Medicine University Of Tokyo
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UEDA Keiji
Second Department of Internal Medicine, Faculty of Medicine University of Tokyo
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HARUMI Kenichi
Second Department of Internal Medicine, Faculty of Medicine, University of Tokyo
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