X-ray imaging apparatus

Abstract

The invention provides an X-ray imaging apparatus. The X-ray imaging apparatus includes an X-ray source, an X-ray detector, an arm, an arm driving mechanism, an X-ray detector moving mechanism, a bed, and a control unit. The control unit controls a position adjustment operation in which the position of the X-ray detector is adjusted so that the distance from the surface of the subject model to the X-ray detector becomes a predetermined distance by moving the X-ray detector so as to be close to the surface of the subject model or away from the surface of the subject model.

Description

technical field [0001] The present invention relates to an X-ray imaging apparatus, and more particularly, to an X-ray imaging apparatus including an arm that holds an X-ray source and an X-ray detector. Background technique [0002] Conventionally, there has been known an X-ray imaging apparatus including an arm that holds an X-ray source and an X-ray detector. Such an X-ray imaging apparatus is disclosed in, for example, Japanese Patent Laid-Open No. 2001-95790. [0003] The X-ray imaging apparatus disclosed in Japanese Patent Laid-Open No. 2001-95790 includes a C-arm, an X-ray tube, a flat panel X-ray detector, a sliding support mechanism, a sliding mechanism, and a bed. The X-ray tube is provided at one end of the C-arm, and the flat panel X-ray detector is provided at the other end of the C-arm. The sliding support mechanism holds the flat panel X-ray detector such that the flat panel X-ray detector can move in the direction orthogonal to the X-ray irradiation axis. ...

AI Technical Summary

Problems solved by technology

If the dose of attenuated X-rays is increased, the contrast of the resulting image decreases

Therefore, in order to suppress the decrease in the contrast of the obtained image, it is necessary to increase the dose of X-rays to be irradiated

If the dose of X-rays to be irradiated is increased, there is a disadvantage that scattered X-rays increase

In the case of increased scattered X-rays, there is a disadvantage that the image quality of the obtained image deteriorates

In addition, it is considered that the operator manually moves the X-ray detector to reduce the distance between the subject and the X-ray detector, but since the operator needs to manually move the X-ray detector every time the imaging position is changed, Therefore, there is a disadvantage that the burden on the operator increases.

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