Fig. 2

Representative PET images of a patient (urine shift pattern). CT image (a), 4-mm and 2-mm voxel μ-maps (b), PET images with non-scatter-correction (NSC), TFS 4-mm, TFS 2-mm, and MCS 4-mm (c). Yellow arrow: urinary catheter. Red arrows: urine in the urinary catheter. Blue arrows: halo artifacts