1. Department of Cardiovascular Surgery, Kitasato University School of Medicine, Kanagawa, Japan
2. Department of Cardiovascular Surgery, Cardiovascular Imaging Research Laboratory, Kyoto Prefectural University of Medicine, Kyoto City, Kyoto, Japan
3. Department of Mechanical Engineering, Saitama University, Saitama City, Saitama, Japan
4. Department of Mechanical Engineering, Nagoya Institute of Technology, Nagoya, Aichi, Japan
5. Department of Surgery I, Toyama University School of Medicine, Toyama City, Toyama, Japan