1. A computer tomography method having the following steps: a) generation by a radiation source of a bundle of rays that passes though an object moving periodically, b) production of a relative movement between the radiation source on the one hand and the object on the other hand, which relative movement comprises rotation about an axis of rotation, c) acquisition, with a detector unit and during the relative movement, of measured values that depend on the intensity in the bundle of rays on the far side of the object, d) sensing of a movement signal dependent on the movement of the object with a movement-sensing means and determination of cyclically repeated phases of movement with the help of the movement signal sensed, e) reconstruction of a plurality of intermediate images of a region of an object, each intermediate image being reconstructed with measured values that were acquired while the object was in a different phase of movement, thus enabling a phase of movement to be assigned to each intermediate image, f) determination of the phase of movement in which there was least movement of the object in the region, by determining the intermediate image having the fewest motion artifacts in the region, g) reconstruction of a computer tomographic image of the region from measured values that were acquired while the object was in the phase of movement in which there was least movement of the object in said region, the reconstruction parameters that are used in this case differing from the reconstructions parameters used to reconstruct the intermediate images.