^○Riku Kitamoto¹, Mikio Suga^1,2 (1.Graduate School of Science and Engineering, Chiba University, 2.Center for Frontier Medical Engineering, Chiba University)

^○Naoto Momiyama¹, Tomoyuki Haishi², Yasuhiko Terada¹ (1.Graduate School of Science and Technology, University of Tsukuba, 2.Department of Radiological Sciences, International University of Health and Welfare)

^○Hiroyuki Hoshiko, Masaaki Ninomiya, Akiyoshi Yamamoto, Seigo Yoshida, Katsumi Nakamura (Diagnostic Imaging Center, Tobata kyoritsu Hospital,)

^○Mari Minami, Yasuhiko Terada (Graduate School of Science and Technology, University of Tsukuba)

^○Kazunori Moriya, Yuki Miyashima, Shigeru Shibata, Shun Sato, Kouji Yoshida (Department of Radiology, Kawasaki Medical School Hospital)