Patent Document ID: 20010038678
Application ID: 09840206
Patent Status: 0

Claim One:
1. A computed tomography method which includes the steps of generating, using a radiation source (S), a conical radiation beam ( 4 ) that traverses an examination zone ( 13 ) or an object present therein, generating relative motions between the radiation source (S) on the one side and the examination zone ( 13 ) or the object on the other side, which relative motions include a rotation about an axis of rotation ( 14 ) along a first, closed trajectory (Ti) and along at least a second trajectory (T 2 ) which is identical to the first trajectory but offset in the direction of the axis of rotation, acquiring, while using a detector unit ( 16 ), measuring data that is dependent on the intensity in the radiation beam ( 4 ) to the other side of the examination zone ( 13 ) during the relative motions, reconstructing the absorption distribution in the examination zone ( 13 ), characterized in that the distance (d) between the trajectories (T 1, T 2 ) is chosen so that on the one hand voxels (P i ) that are temporarily not exposed to any radiation during the two relative motions are present in an intermediate region (Z) between the trajectories, and on the other hand the radiation source (S) projects both trajectories (T 1, T 2 ) continuously on the detector unit in such a manner that the projections (b 2 0 ) intersect the lateral edge of the area of the detector unit ( 16 ) that is used for the acquisition of measuring data, and the absorption distribution in the intermediate region (Z) is reconstructed while taking into account measuring data acquired during the two relative motions.