^○Atsushi Takamatsu, Koji Nobata, Yasuhiro Kawamori, Yasushi Horichi, Kiyohide Kitagawa (Department of radiology, Koseiren Takaoka hospital, Toyama, Japan)

^○Munemasa Okada¹, Kenichiro Ihara², Kouji Narikiyo², Masahiro Tanabe², Masao Nakashima³, Yukio Tikumitsu³, Hiroaki Nagano³, Katsuyoshi Ito² (1.Department of radiology, Yamaguchi University Hospital, 2.Department of Radiology, Yamaguchi University School of Medicine, 3.Department of Gastroenterological, Breast and Endocrine Surgery)

^○Ryo Sakamoto¹, Akihiro Furuta¹, Shunjiro Noguchi¹, Hiroshi Tagawa¹, Yuko Someya¹, Toshiyuki Sato¹, Hirotsugu Nakai¹, Yusaku Moribata¹, Tsuyoshi Ohno¹, Hironori Shimizu¹, Shigeki Arizono¹, Hiroyoshi Isoda², Takamichi Ishii³, Hideaki Okajima⁴, Kaori Togashi¹ (1.Department of Diagnostic Imaging and Nuclear Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan, 2.Preemptive Medicine and Lifestyle Related Disease Research Center, Kyoto University Hospital, Kyoto, Japan, 3.Division of Hepato-Gilliary-Pancreatic and Transplant Surgery, Department of Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan, 4.Department of Pediatric Surgery, Kanazawa Medical University, Kanazawa, Japan)

^○Masakazu Mori¹, Naohiro Matsuyama¹, Mayumi Otsubo¹, Takayuki Nakazaki² (1.Department of Radiology, Japanese Red Cross Nagasaki Genbaku Hospital, Nagasaki, Japan, 2.Department of Surgery, Japanese Red Cross Nagasaki Genbaku Hospital, Nagasaki, Japan)