Fig. 6From: Optimisation of CT protocols in PET-CT across different scanner models using different automatic exposure control methods and iterative reconstruction algorithmsa–c The same image reconstructed with the SAFIRE strength set to 2, 3 and 4, respectively. Standard deviations measured in the patient’s liver in these images were 28.1, 23.2 and 20.8 for a, b and c, respectivelyBack to article page