Abstract: For noise correction in connection with a flat-panel x-ray detector, noise signals of a dark reference area are checked for deviations exceeding a specified threshold which, if any are present, will be taken into consideration separately for calculating the correction factor derived from the noise signal. Image artifacts due, for example, to high-contrast objects such as, for instance, cardiac pacemakers or metallic implants, in the x-ray image will be avoided through this measure.

Abstract: An X-ray device (1) is provided including an X-ray source (8) and a first X-ray detector (9,100) for producing a first X-ray image data set of an examination object (P). A second X-ray detector (20) is provided for producing a second X-ray image data set of examination object (P) where the second X-ray detector (20) has a smaller detector surface (23) than the first X-ray detector (9,100). The second X-ray detector (20) may produce an X-ray image associated with the second X-ray image data set that has a higher local resolution than the X-ray image (12) associated with the first X-ray image data set. The second X-ray detector (20) may be movably connected with the first X-ray detector (9,100) so the second X-ray detector (20) maybe articulated upstream of the first X-ray detector (9,100).

Abstract: The invention relates to an X-ray device (1) with an X-ray source (8) and a first X-ray detector (9, 100) for producing a first X-ray image data set of an examination object (P). The X-ray device (1) additionally comprises a second X-ray detector (20) for producing a second X-ray image data set of an examination object (P), whereby the second X-ray detector (20) has a smaller detector surface (23) than the first X-ray detector (9, 100) and is designed such that the X-ray image associated with the second X-ray image data set has a higher local resolution than the X-ray image (12) associated with the first X-ray image data set. The invention also relates to a method for producing an X-ray image data set.