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EJNMMI Physics
Fig. 2 | EJNMMI Physics

Fig. 2

From: NEMA NU 2–2007 performance characteristics of GE Signa integrated PET/MR for different PET isotopes

Fig. 2

Contrast recovery of TOF-OSEM 4 iteration and 28 subsets as a function of sphere size for 10 min (18F and 68Ga) and 15 h (90Y) acquisition times and different isotopes. The cold and radioactive spheres are indicate using open (18F and 68Ga) and filled circles (90Y), respectively. Contrast recovery and percentage difference relative to 18F for each sphere size: a without PSF and post-smoothing filter and b with PSF and 2 mm post-smoothing filter

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