| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To detect the presence/absence of a relative positional deviation between an X-ray generating part and an X-ray sensor during fluoroscopy and to control X-ray irradiation based on the result of detection. <P>SOLUTION: A radiographic apparatus includes a visible light imaging part for imaging a visual field area image by visible light; an X-ray irradiation part for irradiating X-rays; an X-ray imaging part for receiving irradiated X-rays and acquiring an X-ray image based on the X-rays; and a detecting part for detecting an irradiation area irradiated with the X-rays based on the acquired X-ray image. The radiographic apparatus further includes a registering part for registering position information on the irradiation area in the visual field area image in imaging a static image; a positional deviation detecting part for detecting the presence/absence of the relative positional deviation between the X-ray irradiation part and the X-ray imaging part by comparing the registered position information with position information based on the irradiation area of the X-ray image acquired during imaging of a moving image for radiographing a subject; and an irradiation control part for controlling the irradiation of X-rays by the X-ray irradiation part based on the detected result of the positional deviation detecting part. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
