| 摘要 |
PROBLEM TO BE SOLVED: To improve control related to enlargement/reduction of an observation area, shift of the observation area and change of an observation direction in the fluoroscopic observation with a narrowed observation area to reduce the exposure of a patient in an X-ray imaging apparatus having multi X-ray sources.SOLUTION: The X-ray imaging apparatus includes multi X-ray sources having a plurality of two-dimentsionally disposed X-ray sources. The X-ray imaging apparatus also includes a collimator that can adjust sizes of a plurality of diaphragm apertures corresponding to the plurality of X-ray sources. The X-ray imaging apparatus further includes a control unit for controlling the size of the plurality of diaphragm apertures. |
