Fig. 6From: Performance evaluation of the Biograph mCT Flow PET/CT system according to the NEMA NU2-2012 standardMIP of a patient scan acquired in a CTM and b SS mode. The overall activity concentration in b is about 10 % less due to radioactive decay between the two scans. Image quality is very similar. The changes in bladder filling are caused by the time between the scans. Small differences in local uptake (e.g., larynx) are supposed to be caused by continuous physiological tracer uptakeBack to article page