Problem to be solved: to reduce the patient's burden and exposure when diagnosing by X-ray diagnostic equipment.A first imaging function (first imaging section) includes an X-ray tube (X-ray source) for irradiating X-rays and an X-ray detector having a plurality of pixels for detecting the intensity of X-rays transmitted through the subject, while rotating and moving around the subject to irradiate a first dose onto the X-ray tube, and throw A rotational imaging (first image pickup) for generating a shadow image (image) is performed.When the rotation imaging is interrupted, the first moving function (the first moving section) moves the imaging device to a first position corresponding to the interruption position.The second imaging function (second imaging section) causes the second imaging to generate a fluoroscopic image (projection image) by irradiating X-rays of a second dose lower than the first dose at the first position.The first restart instructing function (the first restart instructing section) restarts the rotation imaging when the image pickup apparatus, in which the rotation is resumed when the fluoroscopic image satisfies a predetermined condition, reaches the interrupted position of the rotation imaging.Diagram【課題】Ｘ線診断装置によって診断を行う際に、患者の負担や被曝量を低減すること。【解決手段】第１の撮像機能（第１の撮像部）が、Ｘ線を照射するＸ線管（Ｘ線源）と被検体を透過したＸ線の強度を検出する複数の画素を有するＸ線検出器とを備える撮像装置を、被検体の周囲に回転移動させながら、Ｘ線管に第１の線量を照射させて、投影画像（画像）を生成する回転撮像（第１の撮像）を行う。回転撮像が中断された場合、第１の移動機能（第１の移動部）は、撮像装置を、中断位置に応じた第１の位置に移動させる。第２の撮像機能（第２の撮像部）は、第１の位置で、第１の線量よりも低い第２の線量のＸ線を照射させて、透視画像（投影画像）を生成する第２の撮像を行わせる。第１の再開指示機能（第１の再開指示部）は、透視画像が所定の条件を満たす場合に回転を再開させた撮像装置が、回転撮像の中断位置に到達したときに回転撮像を再開させる。【選択図】図１
