Computer-tomographic picture evaluating method, involves supplementing integral attenuation value of ray cone with virtual evaluated integral attenuation value, and reconstructing local attenuation value of objects from supplemented value

摘要

The method involves evaluating an integral attenuation of rays from evaluated local attenuation values outside measuring fields (12) of a ray cone (11), where the ray cuts virtually a scanning region. A measured integral attenuation value of the ray cone is supplemented with the virtual evaluated integral attenuation value. The local attenuation value of objects (7) is reconstructed from the supplemented integral attenuation value. An independent claim is also included for a computer tomography system comprising two radiation sources.