Successive Measurements of Cardiac Output by External Monitoring Using Digital Counter and Automatic Digital Printer
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概要
- 論文の詳細を見る
(1) An improved apparatus for the external counting of the radioactive isotope was deviced, which enabled us to make a digital recording and printing with an increased accuracy, without a time delay and has special device to remove background counting rate automatically from the final reading. This apparatus was proved to be adequate for the exact external measurement of the cardiac output as well as for the successive determinations. (2) Several fundamental problems concerning the external measurements of cardiac output in man were investigated. The placement of the collimator focusing directly over the apex of the heart and the calibration at 5 minute were found to be most appropriate. (3) Taking these results into account, the cardiac output was determined by means of external technique in 37 cases including normal subjects and patients with heart failure, liver cirrhosis, anemia and hyperthyroidism. (4) The values obtained were in reasonable agreement with those of direct arterial sampling technique except in cases of severe heart failure. (5) Successive determinations of cardiac output were performed in 6 cases before and after the intravenous injection of aminophylline. The response to the drug was different between the normal subjects and the patients with heart failure.
- International Heart Journal刊行会の論文
著者
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Yasuda Hisakazu
Second Department Of Internal Medicine Faculty Of Medicine University Of Tokyo:dokkyo Medical Colleg
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Ito Iwao
Second Department of Internal Medicine, Faculty of Medicine, University of Tokyo
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Koide Tadashi
Second Department of Internal Medicine, Faculty of Medicine, University of Tokyo
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Nakanishi Atsuo
Second Department Of Internal Medicine Faculty Of Medicine University Of Tokyo:dokkyo Medical Colleg
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IIO Masahiro
Second Department of Internal Medicine, Faculty of Medicine, University of Tokyo
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KAMEDA Haruo
Second Department of Internal Medicine, Faculty of Medicine, University of Tokyo
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Ueda H.
Second Department of Internal Medicine, Faculty of Medicine, University of Tokyo
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KOIDE Tadashi
Second Department of Internal Medicine, Faculty of Medicine University of Tokyo
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ITO Iwao
Second Department of Internal Medicine and the Department of Thoracic Surgery, Faculty of Medicine, University of Tokyo
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