X-RAY IMAGE RECORDING SYSTEM AND X-RAY IMAGE RECORDING METHOD FOR RECORDING IMAGE DATA USING X-RAY DEVICES FOR VOLUME RECONSTRUCTION

摘要

The present invention relates to an x-ray image recording system for recording x-ray projection images of alignment information for recorded x-ray projection images, comprising an x-ray tube 10 and an x-ray image detector 9 being arranged in the optical path of the x-ray tube for recording x-ray projection images of an object O that can be disposed and/or that is disposed between the x-ray tube and the x-ray detector in an imaging region B in a locally fixed manner, wherein the x-ray tube and the x-ray detector are disposed in a locally fixed manner relative to each other, and can be moved about the imaging region, at least in sections, a position sensor 2 being disposed relative to the x-ray tube 10 and the x-ray detector in a locally fixed manner, by means of said sensor the current alignment of the x-ray tube and the x-ray detector can be determined relative to a predefined reference direction R at the moment of recording of an x-ray projection image, and a storage unit 1a for storing recorded x-ray projection images together with the respective current alignment of the x-ray tube and the x-ray detector. The invention comprises a computer 1b being connected to the storage unit 1a for the purpose of data exchange, by means of said computer the position data of the x-ray projection image that are necessary for the calculation of the layered images of the reconstruction can be calculated from the stored, associated current alignment for the purpose of layered image reconstruction based on multiple recorded x-ray projection images for each recorded x-ray projection image utilized.