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Usefulness of Delayed Enhancement Magnetic Resonance Imaging for Detecting Cardiac Rupture Caused by Small Myocardial Infarction in a Case of Cardiac Tamponade 心タンポナーデ症例における小規模心筋梗塞に起因する心臓破裂の検出に対する,遅発性増強磁気共鳴画像の有用性 Matoh, Fumitaka Hayashi, Hideharu Terada, Hajime Satoh, Hiroshi Katoh, Hideki Urushida, Tsuyoshi Shiraki, Katsunori Asai, Masayoshi Sakahara, Harumi Takehara, Yasuo Copyright 2005 THE JAPANESE CIRCULATION SOCIETY 本文データは学協会の許諾に基づきCiNiiから複製したものである Cardiac rupture Magnetic resonance imaging Myocardial infarction Delayed enhancement magnetic resonance imaging (DE-MRI) has excellent spatial resolution and compared with other cardiac imaging techniques it can detect a small myocardial infarction (MI) or a subendocardial infarction. A 76-year-old man was admitted for loss of consciousness because of cardiac tamponade. The cause of tamponade was unknown, but electrocardiography and blood test suggested a recent MI. The removal of 100ml bloody fluid by immediate pericardiocentesis normalized his hemodynamics, and he regained consciousness. Neither echocardiography nor scintigraphy could determine the location of the MI or rupture, but DE-MRI clearly demonstrated a transmural enhancement in a very narrow range of the lateral wall of the left ventricle. Coronary angiography revealed a severely stenotic lesion in the obtuse marginal branch of the left circumflex artery. DE-MRI is a powerful tool for diagnosing small MI that are undetectable with other imaging. Therefore, DE-MRI should be applied in cases with cardiac tamponade by unknown causes. THE JAPANESE CIRCULATION SOCIETY 2005-11-20 eng journal article VoR http://hdl.handle.net/10271/1886 https://hama-med.repo.nii.ac.jp/records/1853 110003475383 10.1253/circj.69.1556 13469843 13474820 Circulation Journal 69 12 1556 1559 https://hama-med.repo.nii.ac.jp/record/1853/files/CircJ-69-1556.pdf application/pdf 372.6 kB 2018-08-27