Computed tomography (CT) is one of the most important modalities in a radiological department. This technique produces images that enables radiological reports with high diagnostic confidence, but may provide an elevated radiation dose to the patient. The radiation dose can be reduced by using advanced image reconstruction algorithms. This study was performed on a Brilliance iCT, equipped with iDose 4 iterative reconstruction and an iterative model-based reconstruction (IMR) method. The purpose

more »

... was to investigate the effect of reduced slice thickness combined with an IMR method on image quality compared with standard slice thickness with iDose 4 reconstruction. The results of objective and subjective image quality evaluations showed that a thinner slice combined with IMR can improve the image quality and reduce partial volume artefacts compared with the standard slice thickness with iDose 4 . In conclusion, IMR enables reduction of the slice thickness while maintaining or even improving image quality versus iDose 4 .