1. Department of Radiology, Sakakibara Heart Institute
2. Department of Radiology, The University of Tokyo Hospital
3. Department of Radiology, Showa University Northern Yokohama Hospital
4. Department of Radiology, Chiba Emergency Medical Center
5. Faculty of Health Sciences, Department of Radiological Sciences, Komazawa University
6. Department of Radiological Technology, Saitama Cardiovascular and Respiratory Center
7. Department of Radiology, NTT Medical Center Tokyo
8. Graduate of Health Sciences, Showa University