1 Department of Diagnostic and Interventional Radiology, St. Marianna University School of Medicine, 2-16-1, Sugao, Miyamae-ku, Kawasaki City, Kanagawa, Japan. Electronic address: shinjiwada@marianna-u.ac.jp.
2 Department of Diagnostic and Interventional Radiology, St. Marianna University School of Medicine, 2-16-1, Sugao, Miyamae-ku, Kawasaki City, Kanagawa, Japan.
3 Department of Urology, St. Marianna University School of Medicine, 2-16-1, Sugao, Miyamae-ku, Kawasaki City, Kanagawa, Japan.
4 Department of Diagnostic Pathology, St. Marianna University School of Medicine, 2-16-1, Sugao, Miyamae-ku, Kawasaki City, Kanagawa, Japan.