| 摘要 |
The invention relates to a computer tomography method in which a radiation source, which emits a cone-shaped beam, moves relative to an investigation area in which an object is arranged, in particular on a helical or circular trajectory. Measured values are acquired with a detector unit, wherein a CT image of the investigation area is reconstructed from these measured values using an nPI reconstruction method, in particular using an exact reconstruction method. In addition, a corrective image is reconstructed from the measured values using an approximative reconstruction method, and added voxel-wise to the CT image. |
