^○Saori Koshino¹, Takatoshi Kubo¹, Jiro Sato¹, Eisuke Shibata¹, Risa Kaneshima³, Takafumi Inoue², Haruo Yamauchi², Minoru Ono², Osamu Abe¹ (1.Department of Radiology, The University of Tokyo Hospital, Tokyo, Japan, 2.Department of Cardiac Surgery, The University of Tokyo Hospital, Tokyo, Japan, 3.Department of Radiology, Tokyo-Kita Medical Center, Tokyo, Japan)

^○Hiroshi Kanaya¹, Kenichi Omae², Mitsuko Yodoya², Shunji Fujie², Sachiko Sawada³, Susumu Kanazawa⁴ (1.Himeji St. Mary's Hospital, 2.Himeji St. Mary's Hospital, department of radiology, 3.Himeji St. Mary's Hospital, department of internal medicine, 4.Okayama University, department of radiology)

^○Arao Murakami, Izuru Matsuda, Masaya Ishii, Aiko Suzuki, Hiroaki Koyama, Satoru Kamio, Akiyoshi Hamada (The Department of Diagnostic Radiology, Kanto Rosai Hospital, Kawasaki City, Japan)

^○Takanori Aonuma¹, Fumiaki Fukamatsu¹, Kentaro Kobayashi¹, Marika Hirabayashi¹, Takuya Fukuzawa¹, Mayu Tsunoda¹, Tomofumi Nonaka², Fumihito Ichinohe¹, Kazuki Oyama¹, Keisuke Todoroki³, Mana Maehara⁴, Akira Yamada¹, Masahiro Kurozumi¹, Akira Shimizu⁵, Yasunari Fujinaga¹ (1.Department of Radiology, Shinshu University School of Medicine, Matsumoto, Japan, 2.Department of Radiology, Iida Municipal Hospital, Iida, Japan, 3.Department of Radiology, Nagano Red Cross Hospital, Nagano, Japan, 4.Department of Radiology, Nagano Municipal Hospital, Nagano, Japan, 5.First Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan)

^○Shinya Onishi, Kenta Ogi, Motonori Takahagi, Yasuhiro Hata, Yoshihiro Noda, Akihito Nishioka, Satoshi Matsusaka, Sojiro Morita (Radiology,Kochi Health Sciences Center,Kochi,Japan)

^○Noriaki Yuasa¹, Tomoyuki Abe², Masahiro Maeda², Yasuhito Shoji³, Naoto Senmaru³, Miri Fujita⁴ (1.Department of Radiology, Steel Memorial Muroran Hospital, Muroran, Japan, 2.Department of Gastroenterology/Hematologic Oncology, Steel Memorial Muroran Hospital, Muroran, Japan, 3.Departments of General Surgery, Steel Memorial Muroran Hospital, Muroran, Japan, 4.Departments of Pathology, Steel Memorial Muroran Hospital, Muroran, Japan)

^○Shinji Wada, Hiromitsu Hiruma, Yosuke Tsuchiya, Hayato Tomita, Kazuki Hashimoto, Junji Moriya, Yukihisa Ogawa, Shingo Hamaguchi, Hidefumi Mimura (Department of Radiology, St. Marianna University School of Medicine, Kanagawa, Japan)