Fig. 5
From: A proper protocol for routine 18F-FDG uEXPLORER total-body PET/CT scans
Transverse PET images of large and small lesions reconstructed by HYPER Iterative and OSEM with different scan times in two lung cancer patients injected with half-dose 18F-FDG. a 18F-FDG Transverse PET images reconstructed by HYPER Iterative and OSEM for a positive large lesion (diameter: 4 cm) with different scan times of 10 s, 30 s, 1 min, 2 min, 3 min, 4 min and 5 min, respectively. HYPER Iterative brings about 12–13% higher SUVmax and 18–23% higher TBR compared to OSEM reconstruction from 2 to 5 min. b 18F-FDG transverse PET images reconstructed by HYPER Iterative and OSEM for a positive small lesion (diameter: 7 mm) with different scan times of 10 s, 30 s, 1 min, 2 min, 3 min, 4 min and 5 min, respectively. HYPER Iterative brings about 61–75% higher SUVmax and 77–94% higher TBR compared to OSEM reconstruction from 1 to 5 min