PROBLEM TO BE SOLVED: To provide an X-ray diagnostic apparatus for easily performing positioning.SOLUTION: The X-ray diagnostic apparatus includes: an X-ray irradiation part 20 for irradiating a subject P with an X-ray with an irradiation axis 201 as a center an X-ray detecting part 24 for detecting the X-ray transmitted through the subject P a projector 30 for irradiating the subject P with visible light for positioning the X-ray irradiation part 20 and the X-ray detecting part 24 with respect to the subject P and an angle detector 45 for detecting the irradiation angle of the X-ray irradiation part 20 with respect to the X-ray detecting part 24. The projector 30 radiates the visible light from the side part in a direction of the irradiation axis 201, based on information of the irradiation angle detected by the angle detector 45, and then, projects a marker indicating the irradiation axis 201 onto the subject P.COPYRIGHT: (C)2011,JPO&INPIT【課題】ポジショニングが容易なX線診断装置を提供する。【解決手段】被検体Pに対して照射軸201を中心としてX線を照射するX線照射部20と、被検体Pを透過したX線を検出するX線検出部24と、被検体Pに対するX線照射部20及びX線検出部24のポジショニングを行うための可視光を被検体Pに照射する投光器30と、X線検出部24に対するX線照射部20の照射角度を検出する角度検出器45とを備え、投光器30は、角度検出器45により検出された照射角度の情報に基づいて、照射軸201方向の側方から可視光を照射して、照射軸201を示すマーカを被検体P上に投影させる。【選択図】 図1
