1. Division of Functional and Diagnostic Imaging Research, Department of Radiology; Kobe University Graduate School of Medicine; Kobe Japan
2. Advanced Biomedical Imaging Research Center; Kobe University Graduate School of Medicine; Kobe Japan
3. Division of Radiology, Department of Radiology; Kobe University Graduate School of Medicine; Kobe Japan
4. Toshiba Medical Systems Corporation; Otawara Tochigi Japan