Reduction of beam hardening induced metal artifacts using consistency conditions

Comparative Evaluation of Cone-Beam Consistency Conditions for Mono-Material Beam Hardening Correction in Flat Detector Computed Tomography

“…In this paper, we evaluate beam hardening correction methods that differ in the underlying DCCs employed to quantify projection inconsistency. Although DCCs have been utilized for mono and multi-material beam hardening corrections [25] [27] [28], we are limiting our discussion to mono-material or water correction using a second-degree polynomial for all detector pixels (first-order correction). Water correction using DCC does not require prior knowledge about the X-ray, attenuation, and detector spectra or the forward projections after initial reconstruction.…”