Patent ID: 7346142
Filing Date: 2008-03-18
Classification: A61B,G06T,Y10S

Abstract:
1. A computed tomography method with the following steps: a) Production of a cone-shaped bundle of rays which passes through an examination zone and an object located therein, using a radiation source, b) Production of a relative movement between the radiation source on the one hand and the examination zone on the other hand, which comprises a rotation around a rotational axis and a displacement parallel to the rotational axis, and which has the form of a helix, c) Acquisition of real measured values which depend on the intensity in the bundle of rays on the other side of the examination zone, using a detector unit, d) Determination of non-acquired, fictitious measured values from the real measured values, wherein assigned to each fictitious measured value is a fictitious beam which is emitted from a fictitious radiation source position, and wherein the determination of a fictitious measured value has the following steps: e) Reconstruction of an object image from the real measured values and the fictitious measured values.