1. Department of International Radiological Science, Hallym University of Graduate Studies: 427 Yeoksam-ro, Gangnam-gu, Seoul 135-841, Republic of Korea
2. Department of Radiology, Soonchunhyang University Hospital, Republic of Korea
3. Department of Computer Science and Engineering, Soonchunhyang University, Republic of Korea
4. Department of Electronic Engineering, Namseoul University, Republic of Korea