[1] Sungkyunkwan Univ, Samsung Med Ctr, Sch Med, Dept Radiol, Seoul 135710, South Korea
[2] Sungkyunkwan Univ, Samsung Med Ctr, Sch Med, Ctr Imaging Sci, Seoul 135710, South Korea
[3] Sungkyunkwan Univ, Samsung Med Ctr, Sch Med, Dept Pathol, Seoul 135710, South Korea
[4] Sungkyunkwan Univ, Samsung Med Ctr, Sch Med, Div Pulm & Crit Care Med,Dept Med, Seoul 135710, South Korea
[5] Sungkyunkwan Univ, Samsung Med Ctr, Sch Med, Div Pulm & Crit Care Med,Dept Thorac Surg, Seoul 135710, South Korea
[6] Gachon Univ, Gil Hosp, Dept Radiol, Inchon 405760, South Korea