Right Ventricular Ejection Function Assessed by Cineangiography : Importance of Bellows Action
スポンサーリンク
概要
- 論文の詳細を見る
The right ventricular ejection fraction (RVEF) can be shown theoretically as a mathematical function of the percent shortening in the 3 axial dimensions of the right ventricular cavity (the septum-free wall dimension (SF), the anterior-posterior dimension (AP), and the tricuspid valve-apex dimension (TA) or the long axis dimension (LA)). There is a need to decide which mechanism is the most important for the RVEF in cases with neither obvious regional wall motion abnormalities of the left ventricle nor right ventricular overload. Forty-four consecutive subjects (34 males/10 females) were enrolled: 16 had normal hemodynamic parameters without significant coronary artery stenosis, 15 had hypertrophic cardiomyopathy and 13 had dilated cardiomyopathy. Biplane right ventricular cineangiography was performed and the percent shortening of the SF, AP, and TA or LA were measured. The percent shortening in the SF (34.8±14.7%) was larger than that of the AP, TA, and LA (23.2±8.5 21.0±8 3 and 18.3±7.0, respectively; all p<0.001). There was a linear correlation between the percent shortening of each dimension and the RVEF. The 95% confidence interval of the regression equation from the percent shortening of the SF and RVEF was located above those from the other percent shortenings, except for a lower RVEF. These results indicate that systolic shortening of the SF (ie, bellows action) plays an important role in the RVEF except for a lower ejection fraction.
- 社団法人日本循環器学会の論文
- 2002-05-20
著者
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Katoh Atsushi
Department of Cardiology, Kurume University Medical Center
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SAKUMA Masahito
Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine
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SHIRATO Kunio
Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine
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Takishima T
Department Of Cardiology Iwate Prefectural Central Hospital
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長谷川 英機
北海道大学量子集積エレクトロニクス研究センター
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TAKAHASHI TOHRU
Department of Pediatric Cardiology, Hirosaki University School of Medicine
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Komaki Kohtaroh
Division Of Cardiology Gunma Prefectural Cardiovascular Center
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Takahashi Tsuneo
The 1st.department Of Internal Medicine Tohoku University School Of Medicine
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Takishima Tamotsu
東北大学
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Takishima T
Department Of Cardiovascular Medicine Tohoku University Graduate School Of Medicine
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Takii Toru
東北大学 医学系研究科循環器病態学分野
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Shirato Kunio
Department Of Cardiovascular Medicine Tohoku University Graduate School Of Medicine
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Kajinami Koji
Department of Cardiology Kanazawa Medical University
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Katoh Atsushi
Department Of Cardiovascular Medicine Tohoku University Graduate School Of Medicine
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NAKAGAWA Makoto
Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University
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Yamamoto Yoshito
Department of Cardiology, Iwate Prefectural Central Hospital
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Komaki Kohtaroh
Department of Cardiovascular Medicine,Tohoku University Graduate School of Medicine
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Ishigaki Hidehiko
Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine
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Hozawa Hidenari
Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine
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Takahashi Tohru
Department Of Cardiology Matsusaka Central General Hospital
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Nakagawa Makoto
Department Of Cardiovascular Medicine Tohoku University Graduate School Of Medicine
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Sakuma Masahito
Department Of Cardiovascular Medicine
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Ishigaki Hidehiko
Department Of Cardiovascular Medicine Tohoku University Graduate School Of Medicine
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Takishima Tamotu
The First Department Of Internal Medicine Tohoku University School Of Medicine
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Takishima Tamotu
Hikarigaoka Spellman Hospital
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Katoh Atsushi
Department Of Applied Chemistry Nagoya University
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Yamane Yuriko
Department Of Cardiovascular Medicine Tohoku University Graduate School Of Medicine
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Oikawa Yoshichika
Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine
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Takishima Tamotsu
The 1st.department Of Internal Medicine Tohoku University School Of Medicine
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Kuga Keisuke
Department Of Internal Medicine University Of Tsukuba
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Takishima T
Tohoku Univ. School Of Medicine Sendai Jpn
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Komaki Kohtaroh
Department Of Cardiovascular Medicine Tohoku University Graduate School Of Medicine
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Takishima Tamotsu
The First Department Of Internal Medicine
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Yamamoto Yoshito
Department Of Cardiology Tokorozawa Heart Clinic
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Takahashi Takanori
東北大学 院循環器病態学
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Hozawa Hidenari
Department Of Cardiovascular Medicine Tohoku University Graduate School Of Medicine
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Takahashi Tohru
Department Of Cardiology Iwate Prefectural Central Hospital
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Takamura Takeshi
Department Of Cardiology Matsusaka Central Hospital
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Oikawa Yoshichika
Department Of Cardiovascular Medicine Tohoku University Graduate School Of Medicine
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