1. Philips Electronics Japan Ltd.HealthcareShinagawa Tokyo Japan
2. Department of Clinical RadiologyGraduate School of Medical Sciences, Kyushu UniversityFukuoka Japan
3. Philips HealthcareAsia PacificShinagawa Tokyo Japan
4. Department of RadiologyTokai University HospitalIsehara Kanagawa Japan
5. Division of Health SciencesGraduate School of Medical Sciences, Kanazawa UniversityKanazawa Ishikawa Japan