[1] Hallym Univ, Sacred Heart Hosp, Coll Med, Dept Radiol, 22 Gwanpyeong Ro 170beon Gil, Anyang Si 431796, Gyeonggi Do, South Korea
[2] Univ Iowa, Dept Radiol, 200 Hawkins Dr,CC 701 GH, Iowa City, IA 52241 USA
[3] Univ Iowa, Dept Med, 200 Hawkins Dr,CC 701 GH, Iowa City, IA 52241 USA
[4] Univ Iowa, Dept Biomed Engn, 200 Hawkins Dr,CC 701 GH, Iowa City, IA 52241 USA
[5] Seoul Natl Univ, Dept Radiol, Coll Med, 103 Daehak Ro, Seoul 110799, South Korea
[6] Mayo Clin, Dept Radiol, Coll Med, 200 First St SW, Rochester, MN 55905 USA
[7] Univ Heidelberg Hosp, Diagnost & Intervent Radiol, Neuenheimer Feld 400, D-69120 Heidelberg, Germany
[8] German Ctr Lung Res DZL, Translat Lung Res Ctr Heidelberg TLRC, Neuenheimer Feld 400, D-69120 Heidelberg, Germany
[9] Univ Ulsan, Coll Med, Asan Med Ctr, Dept Radiol, 388-1,Pungnap 2 Dong, Seoul 05505, South Korea
[10] Univ Ulsan, Coll Med, Asan Med Ctr, Res Inst Radiol, 388-1,Pungnap 2 Dong, Seoul 05505, South Korea