Takashi Inoue¹, Tomohisa Ishida¹, Tomoo Inoue¹, Atsushi Saito¹, Masayuki Ezura¹, Hiroshi Uenohara¹, Noriko Kurihara², Yumiko Kato², Akihiro Sato², Teiji Tominaga³ (1.Department of Neurosurgery, Sendai Medical Center, 2.Department of Radiology, Sendai Medical Center, 3.Department of Neurosurgery, Tohoku University)

Kuniaki Harada, Hisako Nagao, Kenta Sakuragi, Kentaroh Sunaga, Masatomo Yokose, Masahiro Takizawa (Hitachi, Ltd. Healthcare Business Unit)

Sanae Takahashi¹, Miho Gomyo^2,3, Isao Miyazaki¹, Kazuhiro Tsuchiya^2,3, Miho Kitamura⁴, Kazuhiro Sueoka⁴, Kenichi Yokoyama² (1.Section of Radiology, Kyorin University hospital, 2.Department of Radiology, Kyorin University Faculty of Medicine, 3.Department of Radiology, Saitama Medical Center, Saitama Medical University, 4.Canon Medical Systems Corporation)

Akio Chishima^1,2, Tatsuya Miyazaki¹, Yukihiro Hoshino¹, Toshihisa Miyamoto¹ (1.Medicalscanning ginza, 2.Suzuka Medical and Science University)

Yoshihiro Kubota¹, Hajime Yokota¹, Hiroki Mukai¹, Takuro Horikoshi¹, Takayuki Sakai², Shigehiro Ochi², Takashi Uno³ (1.Department of Radiologuy, Chiba University Hospital, 2.Department of Radiology, Eastern Chiba Medical Center, 3.Department of Diagnostic Radiology and Radiation Oncology, Chiba University Graduate School of Medicine)

Akane Shimoine¹, Toshiya Azuma¹, Minako Sumiyoshi², Yoshihito Kadota², Toshinori Hirai², Masanori Komi¹ (1.Department of Radiological Technology, Faculty of Medicine, University of Miyazaki, 2.Department of Radiology, Faculty of Medicine, University of Miyazaki)

Tsuyoshi Nikaidou¹, Kenji Furukawa², Kouki Yamamoto² (1.Social Medical Coporation Kojinkai Kushiro Neurosurgery Radiation Department, 2.Kushiro Kojinkai Memorial Hospital Radiation Department)