1. From the Department of Diagnostic Imaging and Nuclear Medicine, Kyoto University Graduate School of Medicine, 54 Shogoin-kawaharacho, Sakyo-ku, Kyoto 606-8507, Japan (M.I., M. Kataoka, S.K., N.O., M. Kawai, A.O., R.S., K.T.); Hakubi Center for Advanced Research, Kyoto University, Kyoto, Japan (M.I.); and Department of Breast Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan (M.T.).