| 摘要 |
PROBLEM TO BE SOLVED: To restrict exposure of a patient to an X-ray while maintaining favorable quality of a reconstructed image in an X-ray CT apparatus. SOLUTION: The X-ray CD apparatus 10 comprises an irradiate unit irradiating an X-ray, a tube current value modulation determination unit 54 determinating a tube current value modulation to extend to a body axis direction in a predetermined rotation angle of the irradiate unit based on an index value to show a dispersion of CT values in required area in a reconstructed image, and a displaying unit 47 aligning and displaying an image of the index value and an image of the tube current value modulation on an image used for positioning. COPYRIGHT: (C)2010,JPO&INPIT |
