1. Department of Radiological Technology, Toranomon Hospital, Tokyo, Japan
2. Okinaka Memorial Institute for Medical Research, Toranomon Hospital, Tokyo, Japan
3. Department of Hepatology, Toranomon Hospital, Tokyo, Japan
4. Department of Radiology, Toranomon Hospital, Tokyo, Japan
5. Department of Pathology, Toranomon Hospital, Tokyo, Japan
6. Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan