| 摘要 |
PROBLEM TO BE SOLVED: To provide an X-ray CT apparatus capable of changing a condition for radiography by simple operation if clipping occurs in a predetermined allowable range of tube current quantity. SOLUTION: A system control device 401 computes a tube current modulation curve 153 to be fed to an X-ray tube based on a condition for radiography set by an operator and a target image quality, and computes and displays an image quality index changing curve 173 from the computed tube current modulation curve 153. The system control device 401 analyzes the image quality index changing curve 173, and determines whether there is clipping of the tube current or a part deviating from the allowable range of the target image quality. If there is clipping of the tube current or a part deviating from the allowable range of the target image quality, the system control device 401 computes and displays a candidate for correction of the condition for radiography for achieving the target image quality. COPYRIGHT: (C)2010,JPO&INPIT |
