X-ray imaging apparatus

Abstract

An X-ray imaging apparatus provides for an improvement of the imaging location of a pre-image P that is corrected based on a correction level calculated by a correction level calculation element. The correction level is calculated based on a distance between a center Ko of a vertebral area extracted from a pre-image P by a feature area extraction elementand a center Po of the pre-image P. Once the pre-image is generated, the pre-image is corrected so that the center Ko of the vertebral area coincides with the center Po of the pre-image P. The pre-image is generated by irradiating a pulse X-ray once from an X-ray tubeby pushing down a pre-image generation directive button. Regardless the length of pushing-down time, a X-ray irradiation time is always a predetermined short time, so that an X-ray irradiation time can be an absolutely predetermined short time by a simplified operation. As results, when the imaging range of the mensurative X-ray image is set, the X-ray irradiation time is reduced and a radiation dose is suppressed. Also, the imaging range correction of the pre-image P can be quickly corrected, so that time needed for imaging the image is shortened.