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Table 1 Design and PET performance specifications

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

  PET
Axial FOV 25 cm
Transaxial FOV 60 cm
Photodetector SiPM
Scintillator LYSO
Crystal element size 25 × 4.0 × 5.3 mm3
Electronics Integrated in-bore
Time resolution < 400 ps
Energy window 425–650 keV
Coincidence timing window 4.57 (± 2.29 ns)
NEMA NU 2–2007 PET testa
 Sensitivity 22.5 cps/kBq
 Peak NECR 212.2 kcps
 Activity at Peak NECR 18.1 kBq/ml
 Scatter Fraction at Peak NECR 44.1%
 Spatial Resolution (Axial) (5.53–6.95) mm at 1 and 10 cm
  1. aGE healthcare acceptance tests [23]