^○Takumi Koyano¹, Takashige Yoshida^1,2, Yuki Furukawa¹, Kohei Yuda¹, Masami Yoneyama³, Nobuo Kawauchi¹ (1.Tokyo Metropolitan Police Hospital Department of Radiology, 2.Tohoku University Graduate School of Medicine Insurance Department of image analysis, 3.Philips Electronics Japan)

^○Kohei Yuda¹, Takashige Yoshida^1,2, Yuki Furukawa¹, Takumi Koyano¹, Nobuo Kawauchi¹, Masami Yoneyama³ (1.Tokyo Metropolitan Police Hospital, 2.Tohoku University , Graduate school of Medicine , Division of Diagnostic Image Analysisi , Miyagi ,Japan, 3.Philips Electronics Japan)

^○Toshikatsu Washio¹, Kazuyuki Mizuhara² (1.Health Research Institute, National Institute of Advanced Industrial Science and Technology, 2.School of Engineering, Tokyo Denki University)

^○Fukuhiro Kagawa¹, Tomoko Takaichi¹, Hiroaki Yasuda¹, Yoshihito Matsumoto^1,2 (1.Takamatsu Gazou Shindan Clinic, 2.Nishi Takamatsu Neurosurgical Clinic)

^○Motohiro Nagai, Yoshiaki Kato, Yuuko Ookawa, Yousuke Yamada (Kameda General Hospital)

^○Rei Yoshida^1,2, Wataru Kawamata^2,3, Yoshio Machida² (1.Kurihara Central Hospital, 2.Tohoku University Graduate School of Medicine, 3.Kazuno Kousei Hospital)