[1] Tokushima Univ, Grad Sch, Inst Biomed Sci, Dept Therapeut Radiol, Tokushima, Japan
[2] TOYO MEDIC Co Ltd, Tokyo, Japan
[3] Yawatahama City Gen Hosp, Dept Radiol Technol, Yawatahama, Ehime, Japan
[4] Tokushima Univ, Grad Sch Med Sci, Tokushima, Japan
[5] Tokushima Univ, Grad Sch Hlth Sci, Tokushima, Japan
[6] Tokushima Univ, Grad Sch Hlth Sci, Tokushima, Japan
[7] Tokushima Univ, Grad Sch, Inst Biomed Sci, Dept Therapeut Radiol, Tokushima, Japan