Affiliation: | (1) Department of Radiology, Samsung Medical Center and Center for Imaging Science, Sungkyunkwan University School of Medicine, 50, Ilwon-dong, Kangnam-ku, Seoul, Korea 135-710;(2) Department of Radiology, Hamamatsu University School of Medicine, 20 Hamdayama, Hamamatsu 431-3192, Japan |