^○KENICHIRO IHARA¹, MUNEMASA OKADA¹, KOUJI NARIKIYO¹, ETSUSHI IIDA¹, MASAHIRO TANABE¹, MASAYA TANABE¹, ISSEI SAEKI², ISAO SAKAIDA², KATSUYOSHI ITO¹ (1.The Department of Radiology, University of Yamaguchi, Yamaguchi, Japan, 2.The Department of Internal Medicine, University of Yamaguchi, Yamaguchi, Japan)

^○JUN HASUMI, YOUHEI MUNETOMO, SYUNSUKE KISAKI, YASUAKI HASEGAWA, TAKAYUKI SUZUKI, RUI KANOU, YOUHEI OOKI, HIROSHI MATSUI, KOUICHI ASHIDA (The Radiology Department of The Jikei University School of Medicine, Tokyo, Japan)

^○JUNJI ITO¹, MAYAKO ZAHA¹, MASAFUMI TOGUCHI¹, TAKAYUKI SAKUGAWA¹, YUKO IRAHA¹, JOUICHI HEIANA¹, KOUSEI ISHIGAMI¹, SHOUTAROU HIGA², TAKAAKI NAGANO², SADAYUKI MURAYAMA¹ (1.Department of Radiology, University of the Ryukyus Hospital, Okinaa, Japan, 2.Second Department of Surgery, University of the Ryukyus, Okinawa, Japan)

^○TATSUHIKO SATO¹, YOSUKE HORII¹, TETSUHIRO HIRATA¹, MOTOHIKO YAMAZAKI¹, YUMA FUZAWA¹, SHOICHI INAGAWA¹, NORIHIKO YOSHIMURA¹, AOYAMA HIDEFUMI¹, KIZUKI YUZA², JUN SAKATA², TAKAAKI SATO³ (1.Department of radiology, Niigata University Medical & Dental Hospital, Niigata, Japan, 2.Division of digestive and general surgery, Niigata University Medical & Dental Hospital, Niigata, Japan, 3.Department of Endocrinology and Metabolism, Niigata University Medical & Dental Hospital, Niigata, Japan)

^○NORIYUKI UMAKOSHI, YASUAKI ARAI, MIYUKI SONE, SHUNSUKE SUGAWARA, CHIHIRO ITOH, TETSUYA HASEGAWA, YASUYUKI ONISHI, SHINTARO KIMURA, SHINJI FUJIZUKA, MASAHIKO KUSUMOTO (Department of Diagnostic Radiology, National Cancer Center Hospital, Tokyo, Japan)