| 摘要 |
A radiographic apparatus includes an X-ray generator for irradiating a subject with X-rays, a rotating unit for rotating the subject irradiated with the X-rays, a two-dimensional detector for converting X-rays transmitted through the subject into projection-image data, an information extracting unit for extracting information regarding the subject from the projection-image data, a calculating unit for calculating an amount of shift, with respect to a vertical direction, of at least one of the X-ray generator, the two-dimensional detector, and the subject, based on the information extracted, a driving unit for changing a position, with respect to the vertical direction, of at least one of the X-ray generator, the two-dimensional detector, and the subject, and a controlling unit for controlling the driving unit according to the amount of shift calculated by the calculating unit.
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