^○Yuki Takara¹, Toru Saguchi², Naokazu Chiba³, Shigeyuki Kawachi³, Kazuhiro Saito² (1.The Department of Radiology, Tokyo Medical University, Hachioji Medical University, Tokyo, Japan, 2.The Department of Radiology, Tokyo Medical University Hospital, Tokyo, Japan, 3.The Department of Digestive Surgery and Transplantation Surgery, Tokyo Medical University, Hachioji Medical University, Tokyo, Japan)

^○Eiji Sugihara, Yuji Okuno, Masahiko Shibuya, Koichi Miyazaki, Keishi Fujiwara, Takayuki Sakugawa (Okuno Clinic.)

^○Hitomi Maeda¹, Kenji Kajiwara¹, Rika Yoshimatsu¹, Tomoaki Yamanishi¹, Hiroki Minamiguchi¹, Takashi Karashima², Keiji Inoue², Kazuo Awai³, Takuji Yamagami¹ (1.Kochi University, Kochi MedicalSchool, Radiology, 2.Kochi University, Kochi MedicalSchool, Urology, 3.Institute and Graduate School of Biomedical Sciences. Hiroshima University, Diagnostic Radiology)