| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique for appropriately specifying a metal body position in a CT imaging area in order to reduce a metal artifact to be generated in a CT image.SOLUTION: An image processing device 80 radiates X-rays from different angles for each position of a CT imaging area, determines CT values, based on the maximum X-ray intensity among multiple X-ray intensities detected by an X-ray detector 21, and then acquires first volume data 13D corresponding to a CT imaging area (the maximum intensity back projection). The image processing device 80 binarizes the first volume data 13D, distinguishes a metal body area from a nonmetal body area, and then specifies a metal body corresponding area corresponding to a metal body in projection data 11D. |
