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EJNMMI Physics
Fig. 4 | EJNMMI Physics

Fig. 4

From: Evaluation of block-sequential regularized expectation maximization reconstruction of 68Ga-DOTATOC, 18F-fluoride, and 11C-acetate whole-body examinations acquired on a digital time-of-flight PET/CT scanner

Fig. 4

Mean noise in normal liver tissue plotted against β-value (a–c), mean SNR against β-value (d–f), and mean SBR against β-value (g–i) for 68Ga-DOTATOC, 18F-fluoride, and 11C-acetate, respectively, using BSREM and OSEM (3 iterations, 16 subsets, 5-mm Gaussian post-processing filter) for three various image acquisition times per bed position (solid, dashed, and dotted lines). Both reconstruction methods included TOF and PSF recovery. All data were normalized to those obtained by OSEM at full image acquisition time

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