1. Department of Radiology and Research Institute of Radiology, Cardiac Imaging Center, Asan Medical Center, University of Ulsan College of Medicine, Olympic-ro 388-1, Seoul, South Korea
2. Division of Cardiology, Cardiac Imaging Center, Asan Medical Center, University of Ulsan College of Medicine, Olympic-ro 388-1, Seoul, South Korea
3. Department of Cardiothoracic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Olympic-ro 388-1, Seoul, South Korea