^○Takuya Hara, Jun Koizumi, Tatsuya Sekiguchi, Shun Ono, Hiroki Kobayhashi, Yuka Sekiguchi, Jun Hashimoto (Department of Diagnostic Radiology School of Medicine, University of Tokai, Kanagawa, Japan)

^○Hideki Ota (Department of Diagnostic Radiology, Tohoku University Hospital)

^○Hidetoshi Matsuo (Division of Advanced Diagnostic Medical Imaging, Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Japan)

^○Jun Sakurai¹, Susumu Kanazawa^1,2 (1.Center for Innovative Clinical Medicine, Okayama University Hospital, Okayama, Japan, 2.Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan)