1. An apparatus for assessing reconstructed x-ray images from a three-dimensional (3D) data field formed from a plurality of x-ray images recorded of an object from different predeterminable directions, the apparatus comprising: an x-ray system with a second module configured to establish a confidence level for an image point of a reconstructed x-ray image, wherein the confidence level emerges from a first number of the x-ray images of the object recorded in different angle ranges along a trajectory divided by a second number of the x-ray images of the object for complete imaging of the image point.