PROBLEM TO BE SOLVED: To provide an X-ray diagnostic apparatus capable of preforward control for X-ray control.SOLUTION: The X-ray diagnostic apparatus comprises: an X-ray tube 5 for irradiating an object with X-rays a body thickness calculation part 12 for gathering the transmitted X-rays of the object by an X-ray image means including an FPD 6 for which the X-ray tube 5 is moved from a floor surface and calculating the body thickness information of the object by the gathered transmitted X-rays and a fluoroscopy condition calculation part 13 for setting the condition of the X-rays to be radiated to the object on the basis of the calculated body thickness information.COPYRIGHT: (C)2008,JPO&INPIT【課題】 X線制御をプリフォワードする。【解決手段】 被検体にX線を照射するX線管球5と、このX線管球5を床面より移動されたFPD6を含むX線映像手段により、前記被検体の透過X線を収集し、その収集された透過X線より前記被検体の体厚情報を算出する体厚算出部12と、前記算出された体厚情報に基づいて前記被検体へ照射するX線の条件を設定する透視条件算出部13とを備える。【選択図】 図3
