Representative examples of lesions with high and low TBR. This figure displays the axial FDG-PET images (jet color table) of a lesion with high TBR (A; TBR, 11.4; volume, 10.0 ml) and a lesion with low TBR (B; TBR, 3.6; volume, 7.9 ml) for all analyzed reconstruction algorithms. The windowing level was the same for all differently reconstructed data (but different between A and B). At high contrast (A), the SUVmax is mainly increased by PSF integration (+22% and +25%) and marginally affected by TOF (+0.2% and +2%). At low contrast (B), the opposite is true (PSF, +3% and +4%; TOF, +15% and +16%).