PROBLEM TO BE SOLVED: To provide an X-ray diagnostic apparatus capable of facilitating an alignment adjustment operation and enabling radioscopy.SOLUTION: An X-ray diagnostic apparatus described in an embodiment includes: an X-ray generating part for generating an X-ray to a subject and an X-ray detecting part for detecting the X-ray transmitted through the subject. The X-ray diagnostic apparatus includes: an X-ray diaphragm part a calculating part and a control part. The X-ray diaphragm part adjusts an irradiation width of an X-ray generated by the X-ray generating part. The calculating part calculates a deviation amount between the X-ray irradiation range and the detection range of the X-ray detecting part on the basis of the relative position between the X-ray generating part and the X-ray detecting part and a state of the X-ray diaphragm part. The control part drives the X-ray diaphragm part to adjust the deviation between the X-ray irradiation range and the detection range of the X-ray detecting part when the deviation amount is determined to be within a predetermined range.COPYRIGHT: (C)2014,JPO&INPIT【課題】アライメント調整の作業を容易に行え、且つX線透視が可能なX線診断装置を提供する。【解決手段】実施形態に記載のX線診断装置は、被検体に対してX線を発生させるX線発生部と、被検体を透過したX線を検出するX線検出部とを有する。X線診断装置は、X線絞り部と、算出部と、制御部とを有する。X線絞り部は、X線発生部で発生したX線の照射幅を調整する。算出部は、X線発生部とX線検出部との相対的な位置及びX線絞り部の状態に基づいて、X線の照射範囲とX線検出部の検出範囲とのずれ量を算出する。制御部は、ずれ量が所定範囲内であると判断した場合、X線の照射範囲とX線検出部の検出範囲とのずれを調整させるよう、X線絞り部を駆動させる。【選択図】図2
