1. From the Department of Magnetic Resonance Imaging, Cardiovascular Imaging and Intervention Center (M.L., H.D., Y.Z., G.Y., X.C., J. Ling, J. Li, S.Z.), Department of Cardiology (Z.G., L.S., H.C.), Department of Echocardiography (Y.J., H.W.), The Heart-lung Testing Center (J.H.), Nuclear Medicine (Z.H.), State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China; and...