Echocardiogram of the Pulmonary Valve Variability of the Pattern and the Related Technical Problems
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概要
- 論文の詳細を見る
In order to examine the variability of the pattern due to the location and direction of the ultrasonic transducer, echocadiograms of the pulmonary valve were obtained from different precordial areas in 28 patients with various diseases and in 3 normal subjects.By higher positioning of the transducer, the diastolic slope became slower or upward and the a wave became indiscernible, giving the pattern of pulmonary hypertension even in the normotensives. The anterior cusp was also detected by tilting of the transducer in some cases.Systolic time intervals (STI) of the right ventricle, however, were not influenced by the beam angle.The present data strongly suggests that the echocardiogram of the pulmonary valve should be carefully evaluated in the light of the spatial relationship of the echo beam and the valve in order to give the diagnostic importance.
- International Heart Journal刊行会の論文
著者
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Hada Yoshiyuki
The 2nd Department Of Internal Medicine Faculty Of Medicine University Of Tokyo
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HADA Yoshiyuki
Second Department of Internal Medicine, Faculty of Medicine, University of Tokyo
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SAKAMOTO Tsuguya
Second Department of Internal Medicine, Faculty of Medicine, University of Tokyo
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HAYASHI Terumi
Second Department of Internal Medicine, Faculty of Medicine, University of Tokyo
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ICHIYASU Hirofumi
Second Department of Internal Medicine, Faculty of Medicine, University of Tokyo
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AMANO Keiko
Second Department of Internal Medicine, Faculty of Medicine, University of Tokyo
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TEI Chuwa
Second Department of Internal Medicine, Faculty of Medicine, University of Tokyo
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KATO Kazuaki
Second Department of Internal Medicine, Faculty of Medicine, University of Tokyo
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Sakamoto Tsuguya
Second Department Of Internal Medicine University Of Tokyo
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