A process for the determination of an x-ray image data set and x-ray device

摘要

A process for the determination of an x-ray image data set of a target area (15) of an examination subject, wherein by means of an x-ray device (1) the target area (15) pointing projection images from different projection directions along a receiving trajectory be picked up, and from the projection images of the higher dimensional is reconstructed x-ray image data set, whereby a first part of the projection images on the target area (15) collimates be picked up, and a second part of the projection images the object to be examined untrunkiert in at least one direction, so that from the second part of the projection images at least one trunk design information is derived, the in the reconstruction of the x-ray image data set for a reduction of the trunk design artifacts is used, the projection images with an x-ray device (1) to be taken, which, in particular at least two independently movable, in the recordable coordinate systems be measured is registered with one another or support of an x-ray source (4, 5) with an associated collimator (6, 7) and an x-ray detector (8, 9), wherein the first part of the x-ray images with a first one of the support and the second part of the x-ray images with the second of the support, in each case at the same during the pickup collimation are absorbed, with the second part of the projection images less than the first part encompasses projection images.