^○Eri Hoshino, Ken Nakazawa, Masao Takahashi, Kouichirou Matsuura (Department of Radiology, Saitama Medical University International Medical Center, Saitama, Japan)

^○Kaishu Tanaka¹, Keigo Osuga², Eiji Kashiwagi¹, Shinya Kosai¹, Keisuke Nagai¹, Hidenari Hongyo¹, Yusuke Ono¹, Hiroki Higashihara¹, Noriyuki Tomiyma¹ (1.Department of Diagnostic and Interventional Radiology Osaka University Graduate School of Medicine, Osaka, Japan, 2.Department of Diagnostic Radiology, Osaka Medical College, Osaka, Japan)

^○Kiyohito Yamamoto¹, Kazuhiro Yamamoto¹, Akihiro Hori², Hiroki Matsutani¹, Hiroshi Juri¹, Go Nakai¹, Keigo Osuga¹ (1.Department of Diagnostic Radiology, Osaka Medical College, 2.Department of Radiation Oncology, Osaka Medical College)