2017 Imaging for Physicists Coursebook

Cone beam CT

For 4-slice CT scanners an ideal fan beam geometry can be assumed during the reconstruction. For cone angles above around 2-4 degrees reconstruction adapted to the cone beam should be used (Feldkamp algorithm, 1984).

Flat-detector computed tomography (FD-CT) Kalender et al. Eur Radiol (2007)