PROBLEM TO BE SOLVED: To capture an X-ray image through an easier operation by moving an area to be irradiated with an X ray by detecting a contrast medium in the X-ray image.SOLUTION: The X-ray image diagnostic device comprises: an X-ray tube configured to emit an X ray a collimator configured to narrow the emitting range of the X ray by blocking at least part of the X ray an imaging means configured to form an X-ray image by detecting the X ray whose emitting range has been narrowed by the collimator a holding means configured to integrally hold the X-ray tube, collimator, and imaging means a first moving means configured to move the collimator a second moving means configured to move the holding means and a control section configured to control the first and second moving means based on an moving instruction signal so as to move the holding means when the collimator moves.COPYRIGHT: (C)2012,JPO&INPIT【課題】X線像中の造影剤を検出してX線の照射領域を移動することで、より簡便な操作でX線像の撮影を行う。【解決手段】X線を照射するX線管と、前記X線の少なくとも一部を遮り、前記X線の照射範囲を狭めるコリメータと、前記コリメータにより照射範囲を狭められた前記X線を検出してX線像を生成する撮像手段と、前記X線管、前記コリメータ、及び前記撮像手段とを一体として保持する保持手段と、前記コリメータを移動させる第1の移動手段と、前記保持手段を移動させる第2の移動手段と、移動指示信号に基づいて、前記コリメータの移動に伴って前記保持手段とを移動させるよう前記第1及び第2の移動手段を制御する制御部とを有する。【選択図】 図1
