1. From the Department of Radiology (N.T., R.F., K.K.K., S.A.), Department of Cardiovascular Biology and Medicine (S.F., D.T., Y.N., A.K., Y.K., K.T., M.H., T. Minamino), and Department of Diabetes, Endocrinology, and Metabolism (T. Mita, M.K., H.W.), Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan.