| 摘要 |
A distance calculation section 16 of a console unit 1 calculates the distance between a focal point of an X-ray tube 42 and a subject on the basis of an image of the subject captured by a stereo camera 50. Subsequently, a radiation field calculation section 14 of the console unit 1 calculates the range of an X-ray radiation field R in an image of the subject 20 displayed on a display section on the basis of the opening of collimator leaves 40 detected by an opening detector 59 of the collimator 43 and the distance between the focal point of the X-ray tube 42 and the subject calculated by the distance calculation section 16. Thereafter, a radiation field display section 15 of the console unit 1 superimposes an image showing the range of the X-ray radiation field R calculated by the radiation field calculation section 14 on the image of the subject displayed on the display section. |
