| 摘要 |
PROBLEM TO BE SOLVED: To improve operability by providing the processor with a fan beam reconstituting means for reconstituting a fan beam for reconstituting a tomographic plane image and a cone beam reconstituting means for reconstituting a cone beam for reconstituting a tomographic solid image. SOLUTION: An output signal from an X-ray detector is converted to a digital signal and fetched into a reconstitution processing part 12. While the cone beam reconstitution is designated by a reconstitution method designating part 21-1, a projection curve calculation part 21-2 generates a projection curve for which a boxel line is projected on the surface of the detector, a reconstitution processing control part 21 finds inverse projection data corresponding to the projection curve (performs cone beam reconstitution processing), the data is added to an image memory 27 and the images is stored. Besides, when the fan beam reconstitution is designated by the reconstitution method designating part 21-2, the projection curve calculation part 21-2 generates a straight projection line parallel with the detector line passing through the center of the detector line, the inverse projection data corresponding to the straight projection line are found (fan beam reconstitution processing) and added to the image memory 27 and the image is stored. |
