1. Department of Diagnostic Radiology, Graduate School of Medicine, Yokohama City University, 3-9, Fukuura, Kanazawa-ku, Yokohama 236-0004, Kanagawa, Japan
2. Department of Cardiology, Kanagawa Cardiovascular and Respiratory Center, 6-16-1 Tomioka-Higashi, Kanazawa-ku, Yokohama 236-0051, Kanagawa, Japan
3. Chemotherapy Center, Yokohama City University Hospital, 3-9, Fukuura, Kanazawa-ku, Yokohama 236-0004, Kanagawa, Japan