1. Department of Nano-Medical Science, Graduate School of Medicine, Tohoku University, Sendai, Japan
2. Department of Medical Physics, Graduate School of Medicine, Tohoku University, Sendai, Japan
3. Department of Advanced Surgical Science and Technology, Graduate School of Medicine, Tohoku University, Sendai, Japan
4. Department of Surgical Oncology, Graduate School of Medicine, Tohoku University, Sendai, Japan
5. Development Department 4, Business Development Division, Business Development Headquarters, Konica Minolta, Inc., Tokyo, Japan