^○Yo Matsui¹, Youhei Munetomo², Yousuke Nozawa², Kenkichi Michimoto³, Hirokazu Ashida², Hiroya Ojiri² (1.Tokyo Shinagawa hospital, Department of Radiology, Tokyo, Japan, 2.The Jikei university hospital, 3.Fuji city general hospital)

^○Yoshihisa Kodama, Yasuo Sakurai, Koji Yamasaki (Dept. of Radiology, Teine Keijinkai Hospital)

^○Joichi Heianna, Wataru Makino, Masafumi Toguchi, Junji Ito, Kazuki Ishikawa, Yuko Iraha, Sadayuki Murayama (Dept. of Radiology, Graduate School of Medical Science Univ. of The Ryukyus, Okinawa, Japan)

^○Akihiko Seki (Dept. of Medical oncology, Suita Tokushukai Hospital)

^○Seijiro Inoue, Yoshitaka Tamura, Osamu Ikeda (Department of Diagnostic Radiology, Kumamoto University Hospital, Kumamoto, Japan)