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EJNMMI Research
Fig. 5 | EJNMMI Research

Fig. 5

From: Impact of acquisition time and penalizing factor in a block-sequential regularized expectation maximization reconstruction algorithm on a Si-photomultiplier-based PET-CT system for 18F-FDG

Fig. 5

Example of a lesion in a vertebra not visible in the 4-min reference (upper left corner) but, to different degrees, visible in the other combinations of time/bed position and β values evaluated. The last row shows 1-min reconstructions from the 4-min acquisition for the last 3 min, where the lesion is not visible. OSEM+TOF with and without PSF are shown in the upper row

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