PROBLEM TO BE SOLVED: To provide an X-ray image diagnostic system which facilitates movement of an X-ray source for setting an appropriate value of SID (source-image distance).SOLUTION: The X-ray image diagnostic system includes: an X-ray source 1 an X-ray detector 12 placed facing the X-ray source 1 to detect an X-ray having passed through the subject 11 to be converted into electric signals a movable X-ray aperture 2 having a light irradiation part 8 irradiates the same region as the X-ray irradiation region with visible light a switch 6 which blinks the visible light in accordance with a distance between the X-ray source 1 and the X-ray detector 12 and an image processor 13 which generates an X-ray image of the subject 11 on the basis of the electrical signals.COPYRIGHT: (C)2012,JPO&INPIT【課題】SIDの設定に関し、SIDが適正値となるために行うX線源の移動を容易に行えるX線画像診断装置を提供する。【解決手段】X線源1と、X線源1と対向配置され、被検体11の透過X線を検出して電気信号に変換するX線検出器12と、X線の照射領域と同一領域に可視光を照射する光照射部8を備えたX 線可動絞り2と、X線源1とX線検出器12との間の距離に応じて、可視光を点滅させるスイッチ6と、上記電気信号に基づいて被検体11のX線画像を生成する画像処理装置13と、を備えることを特徴とする。【選択図】図1
