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EJNMMI Physics
Fig. 4 | EJNMMI Physics

Fig. 4

From: The effects of various penalty parameter values in Q.Clear algorithm for rectal cancer detection on 18F-FDG images using a BGO-based PET/CT scanner: a phantom and clinical study

Fig. 4

CR and contrast in hot spheres with diameters of 10 mm, 13 mm, 17 mm, 22 mm, 28 mm, and 37 mm at LBRs of 2:1, 4:1, and 8:1. These were reconstructed using OSEM and Q.Clear with β values of 100, 200, 300, 400, and 500. The p values for paired t tests between reconstruction methods (including six different lesion sizes) were p < 0.05

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