Provided is an X-ray CT apparatus capable of maintaining image quality of a tomographic image while reducing an emission dose to a site having high radiation sensitivity.An X-ray CT apparatus includes an X-ray source that emits an X-ray to a subject, an X-ray detector that detects the X-ray transmitted through the subject, a rotating plate that causes the X-ray source and the X-ray detector to rotate around the subject, an image generation section that generates a tomographic image of the subject based on a detection signal of the X-ray detector, and a controller that controls each unit, in which the controller has a modulation pattern setting section that sets a modulation pattern used for modulation of an emission dose, which is an X-ray dose emitted from the X-ray source while the rotating plate rotates, such that the emission dose to a site having high radiation sensitivity of the subject is reduced more than the emission dose to other sites, and a modulation pattern adjustment section that adjusts the modulation pattern based on an upper limit speed, which is an upper limit of a modulation speed of the emission dose.
- 출원번호 : 24188149.9
- 출원인 : FUJIFILM Corporation
- 특허번호 :
- IPC : A61B-006/03(2006.01);A61B-006/40(2024.01);A61B-006/00(2024.01);