Evaluation of Cardiac Allograft Vasculopathy by Multidetector Computed Tomography and Whole-Heart Magnetic Resonance Coronary Angiography
スポンサーリンク
概要
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Background: Cardiac allograft vasculopathy (CAV) is a major complication that limits the long-term survival of recipients of heart transplants. In the present study the feasibility of 2 noninvasive approaches for detecting CAV (multidetector computed tomography (MDCT) and whole-heart magnetic resonance coronary angiography (MRCA)) was compared with conventional coronary angiography (CCAG). Methods and Results: Of 22 heart transplant recipients who underwent CCAG screening, 13 had only MDCT, 16 had only MRCA, and 7 had both noninvasive modalities. The coronary arterial tree was divided into 9 segments. Detection of vasculopathy by coronary segments was compared between 16-/64-detector computed tomography (CT) or MRCA and CCAG. The sensitivity of both 16- and 64-detector CT for diagnosing CAV was 69.6%, and specificity was 96.8%. The sensitivity and specificity by 64-detector CT alone were 90.0% and 97.5%, respectively; its positive and negative predictive values were 81.8% and 98.7% respectively. For MRCA, sensitivity was 60%, specificity, 100%, positive predictive value, 100% and negative predictive value, 92.2%. MRCA showed no false positives. Conclusions: MDCT, especially 64-detector CT, is feasible for detecting CAV, whereas MRCA currently shows limited sensitivity.
著者
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OTSUKA Kuniaki
Department of Medicine, Tokyo Women's Medical University
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Okajima Kiyotaka
Department Of Internal Medicine Iii Osaka Medical College
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UENO Eiko
Department of Radiology, Tokyo Women's Medical University Medical Center East
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MACHIDA Haruhiko
Department of Radiology, Tokyo Women's Medical University Medical Center East
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Shitakura Kazunobu
Department of Medicine, Tokyo Women's Medical University Medical Center East
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Nunoda Shinichi
Department of Medicine, Tokyo Women's Medical University Medical Center East
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Sekikawa Akihiko
Department of Medicine, Tokyo Women's Medical University Medical Center East
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Kubo Yutaka
Department of Medicine, Tokyo Women's Medical University Medical Center East
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