Thoracic imaging science, including imaging characteristics
of pulmonary tuberculosis, radiology-physiology correlation
of pulmonary lesions by using animal models, development &
clinical evaluation of direct digital chest radiographic
unit, and computer aided diagnosis.

1983~ Professor (currently), College of Medicine,
Seuol National University
1991 Visiting Professor, Department of Radiology, New
York University
1991 Visiting Professor, Department of Radiology, MD
Anderson Hospital
2000~ Associate Dean for Research Affairs, Seoul
National University College of Medicine
1987~ Thoracic Radiology, Section Chief, Department of
Radiology, Seoul National University Hospital
1991~1996 President, Korean Society of Thoracic Radiology
1996~ Pneumoconiosis Quality Assurance Committee,
Korean Institute of Industrial Health
2000~ Director of Academic Affairs, Korean Academy of
Medical Sciences
1999~ Chairman, Planning & Evaluation Committee,
Korean Association of Medical Journal Editors
1999~ Editor-in-Chief, Journal of Korean Radiological
Society
1999~ Editor-in-Chief, Korean Journal of Radiology
1995~ Editorial Advisory Board, Diagnostic Imaging
Asia Pacific
1997~ Associate Editor, Journal of Thoracic Imaging

1983 Awards for Scientific Exhibition (Gold Award),
39th Korean Radiological Society Annual Convention
1990 Yuhan Medical Award. Seoul City Medical
Association
1991 Awards for Scientific Exhibition (Gold Award),
47th Korean Radiological Society Annual Convention
1997 Awards for Scientific Exhibition (Gold Award),
53th Korean Radiological Society Annual Convention
1992 Cum Laude Award for Scientific Exhibition, 78th
Annual Convention, Radiological Society of North America
1993 Certivicate of Merit Award for Scientific
Exhibition, 79th Annual Convention, Radiological Society of
North America
1994 Certificate of Merit Award for Scientific
Exhibition, 80th Annual Convention, Radiological Society of
North America
1998 Cum Laude Award for Scientific Exhibition, 84th
Annual Convention, Radiological Society of North America
1998 Editor's Certificate of Recognition,
RadioGraphics
1999 Certificate of Merit Award for Scientific
Exhibition, 85th Annual Convention, Radiological Society of
North America