1. Department of Radiological Technology, Faculty of Medicine, Tohoku University School of Health Sciences, Sendai, Japan
2. Department of Radiology, Tohoku Pharmaceutical University Hospital, Miyagi, Japan
3. Department of Radiation Disaster Medicine, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
4. Cardiovascular Center, Tohoku Pharmaceutical University Hospital, Miyagi, Japan
5. Department of Nursing, Tohoku Pharmaceutical University Hospital, Miyagi, Japan.