VERFAHREN UND EINRICHTUNG ZUM ERZEUGEN EINES TOMOSYNTHETISCHEN 3D-RÖNTGENBILDES

In a method and a device for generating a tomosynthetic 3D X-ray image (T), in which a plurality of digital 2D X-ray images are recorded from an examination object with different projection angles (aJ) in a limited angular range with an X-ray source and a digital X-ray detector, so-called fan artefacts are eliminated by a binary 3D mask (M1 (x), M2 (x) ), which is determined from the image data of a first 2D X-ray image (B1 (x) ) recorded at a first projection angle (f1) and the image data of a second 2D X-ray image (B2) (x) ) recorded at a second projection angle (92).