Fig. 2

Patient example. Coronar FDG-PET images of the thorax for a patient are displayed for all 12 reconstruction algorithms (body mass index 22.5 kg/m²; injected activity 3.5 MBq/kg; acquisition time 180 s per bed position). The given noise level is the median of all 50 patients. Data are separated by reconstructed spatial resolution of approx. 5 mm (left column), 7 mm (middle column) or 9 mm FWHM (right column), respectively. The reference algorithm is highlighted in green. At 7 mm FWHM spatial resolution, ASP of the primary tumor (red arrow) was concordantly high (> 19.5%) with all algorithms except for Q.Clear