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Abstract #2051

Clinical Performance of Non-contrast Whole-heart Magnetic Resonance Coronary Angiography with Compressed Sensing: Comparison with Conventional Sensitivity Encoding Imaging

Yuki Ohmoto-Sekine1, Junji Takahashi2, Norihito Miura2, Saori Amemiya2, Kei Fukuzawa2, Makiko Ishihara3, Hiroshi Tsuji1, and Yasuji Arase1

1Health Management Center, Toranomon Hospital, Tokyo, Japan, 2Radiology Dept., Toranomon Hospital, Tokyo, Japan, 3Imaging Center, Toranomon Hospital, Tokyo, Japan

Non-contrast whole-heart magnetic resonance coronary angiography (WHMRA) has proven value for noninvasive assessment of coronary arteries. However, there are major technical challenges associated with this technique, such as image quality degradation due to long scan times. Compressed sensing (CS) reconstruction might be a powerful solution for shortening scan time. We conducted a feasibility study for WHMRA with conventional parallel imaging and CS reconstruction. WHMRA with CS reconstruction is a promising method that can shorten the scan time while maintaining mostly acceptable images, although there is still room for improvement, especially for stenotic vessel evaluation.

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