Affiliation: | 1. Diagnostic Radiology, Amakusa Medical Center, Kameba 854-1, Amakusa, Kumamoto 863-0046, Japan;2. Department of Diagnostic Radiology, Graduate School of Medical, Kumamoto University, Japan;3. Department of Surgery, Amakusa Medical Center, Japan;4. Department of Diagnostic Radiology, Graduate School of Medical, Hiroshima University, Japan |