X-ray system`s deviation detecting method for e.g. medical examination device, involves recording current image of actual position of measuring object by x-ray system, and comparing current image with provided reference image of object

摘要

The method involves positioning a measuring object in a defined position, and recording a current image of an actual position of the measuring object by an x-ray system (2), which comprises a curved arm (4). The current image is compared with a provided reference image of the measuring object. The deviation of a focal point of an x-ray tube (6) from an isocenter is detected, where the current image and the reference image are mathematically subtracted from one another.