Intact chordae tendineae increase ventricular volume measurement error by the balloon method.
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概要
- 論文の詳細を見る
We assessed the accuracy of the intraventricular balloon method of left ventricular volume measurement with all chordae tendineae intact and then severed. The space between the endocardium and the balloon is the source of the volume measurement error. We assessed the volume errors at different intra-balloon pressures between 50 and 250mmHg, using formalin fixed canine left ventricles. The volume error with all chordae tendineae intact was significantly greater than with all chordae tendineae severed at any balloon pressure. The difference of the volume errors under these two conditions amounted to 1.9-3.3ml regardless of intra-balloon pressures. We visually confirmed that this difference predominantly originated from the space behind the tense chordae tendineae.
- International Heart Journal刊行会の論文
著者
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Nozawa Takashi
Department Of Applied Biological Chemistry Faculty Of Agriculture Niigata University
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Hiramori Katsuhiko
Department Of Cardiology Iwate Medical University
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FUTAKI SHIHO
Department of Cardiovascular Dynamics National Cardiovascular Center Research Institute
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Goto Yoichi
Department Of Cardiology National Cardiovascular Center
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Yasumura Yoshio
Department Of Atherosclerosis And Diabetes National Cardiovascular Center
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Tanaka Nobuaki
Department Of Applied Chemistry Faculty Of Engineering Okayama University
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SUGA Hiroyuki
Department of Cardiac Physiology, National Cardiovascular Center Research Institute
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GOTO Yoichi
Department of Cardiovascular Dynamics, National Cardiovascular Center
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YASUMURA Yoshio
Department of Cardiovascular Dynamics, National Cardiovascular Center
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NOZAWA Takashi
Department of Cardiovascular Dynamics, National Cardiovascular Center
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FUTAKI Shiho
Department of Cardiovascular Dynamics, National Cardiovascular Center
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TANAKA Nobuaki
Department of Cardiovascular Dynamics, National Cardiovascular Center
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