[1] Hallym Univ, Sacred Heart Hosp, Dept Radiol, Anyang, Gyonggi Do, South Korea
[2] Yonsei Univ, Coll Med, Gangnam Severance Hosp, Dept Radiol, Seoul, South Korea
[3] Inje Univ, Ilsan Paik Hosp, Dept Radiol, Goyang, Gyeonggi Do, South Korea
[4] Yonsei Univ, Coll Med, Severance Hosp, Dept Radiol, Seoul, South Korea
[5] Yonsei Univ, Coll Med, Severance Hosp, Res Inst Radiol Sci, Seoul, South Korea