| 摘要 |
PROBLEM TO BE SOLVED: To shorten a diagnostic period by displaying the tomosynthesis image of a cross-section to be imaged including a region of interest to a monitor at the beginning. SOLUTION: An X-ray tube 1 and an FPD (Flat Panel Detector) 2 are placed opposite to each other across a subject M, the X-ray tube and the FPD are moved in the opposite direction, X-ray is successively radiated to the subject from the X-ray tube, and transparent X-ray is detected every time, and a projection image is taken. Image reconstruction processing of a projection image is performed every plurality of cross-section to be imageds MA, Ma2 to Man, Mb1 to Mbn parallel to a detection plane of the FPD within a tomography range, and according to order of processing, a tomosynthesis image of each cross-section to be imaged generated is displayed to a monitor 19. The X-ray tomograph includes a reconstruction processing control unit 16 which performs control so that a main cross-section to be imaged is determined from among the cross-sections to be imaged, image reconstruction processing is started successively from the main cross-section to be imaged to cross-sections to be imaged nearer to the main cross-section to be imaged. COPYRIGHT: (C)2011,JPO&INPIT
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