Patent ID: 7403588

Claim:
A method for production of tomographic slice images of an examination object using a computed tomography scanner, comprising: scanning an examination object using at least two X-ray beams, the beams being at offset angles and fanning out from a focus to an opposite detector with a large number of detector elements, with rotational scans at least partially overlapping in a rotational direction, measuring detector output data from the detector elements, representing attenuation of the beams passing through the examination object, together with direct or indirect physical orientation data of the beams and converting the data to projection data sets; calculating image slices, from the projection data sets of the at least two scanning X-ray beams; wherein data from a sum of scans with a projection interval of at least 180° is used for each complete slice image and includes the measurement data from the at least two scanning X-ray beams, and wherein in order to calculate the complete slice images, data redundant from the measured data of the at least two X-ray beams from rotationally overlapping projection intervals is used for each complete slice image, the size of the overlap area of the projection data used from the individual X-ray beams being defined before the calculation of the slice images, to vary time resolution and image quality; and displaying visible picture data based on the calculated image slices.