Affiliation: | a Department of Radiology, University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan b Toshiba Medical Research Institute, 706 Deerpath Drive, Vernon Hills, IL 60061, USA c Applied Imaging Science Laboratory, Department of Radiology, Brigham and Women's Hospital & Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA |