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EJNMMI Physics
Fig. 3 | EJNMMI Physics

Fig. 3

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. 3

The central transverse slice of NEMA IEC phantom, from left to right, reconstructed by Q.Clear with β values ranging from 100 to 500 at 100-point intervals and OSEM and from top to bottom were filled with a Background activity concentrations of 5.1 KBq/ml and LBR = 2:1, b Background activity concentrations of 4.9 KBq/ml and LBR = 4:1, c Background activity concentrations of 5 KBq/ml and LBR = 8:1

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