^○Kazuo Yagi^1,2, Tadashi Shinoda², Seiichi Sugimoto^3,2, Masataka Kubo², Tadashi Inaba² (1.Graduate School of Human Health Sciences, Tokyo Metropolitan University, 2.Graduate School of Engineering, Mie University, 3.Tokyo Metropolitan College of Industrial Technology)

^○Ken Masuyama^1,2, Masayuki Taguchi², Toru Yamamoto³ (1.Teine Keijinkai Hospital, 2.Graduate School of Health Sciences, Hokkaido University, 3.Faculty of Health Sciences, Hokkaido University)

^○Masayuki Taguchi¹, Toru Yamamoto² (1.Hokkaido University Graduate School of Health Sciences, 2.Hokkaido University Faculty of Health Sciences)

^○Yutaka Kato¹, Shinji Naganawa², Toshiaki Taoka³, Hisashi Kawai³, Kiminori Bokura¹, Yasuo Sakurai¹, Minako Kawamura¹, Katsuhiro Sakakibara¹ (1.Radiological technology, Department of medical technique, Nagoya university hospital, 2.Department of Radiology, Nagoya University Graduate School of Medicine, 3.Department of Radiology, Nagoya University Hospital)

Kimihiro Kajita¹, Satoshi Goshima^1,2, ^○Ryohei Yaegashi¹, Shogo Maeda¹, Takayuki Miura¹, Hiroki Kato¹, Shinichi Shoda¹, Yoshifumi Noda², Nobuyuki Kawai², Masayuki Matsuo^1,2 (1.Department of Radiology service, Gifu University Hospital, 2.Department of Radiology, Gifu University Hospital)

^○masashi Yasuike¹, Koji Sakai¹, Ryusuke Nakai², Toshiaki Nakagawa³, Hiroyasu Ikeno³, Kei Yamada¹ (1.Department of Radiology, Kyoto Prefectural University of Medicine, 2.Institute for Frontier Medical Sciences, Kyoto University, 3.Radiology, Kyoto Prefectural University of Medicine Hospital)

^○Kazuo Yagi^1,2, Ayumi Nakagawa², Seiichi Sugimoto^3,2, Tadashi Inaba² (1.Graduate School of Human Health Sciences, Tokyo Metropolitan University, 2.Graduate School of Engineering, Mie University, 3.Tokyo Metropolitan College of Industrial Technology)