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Table 4 Calibration factors for center-specific and vendor-neutral reconstructions, calculated for 128 projections and 20 s/projection

From: Towards standardization of absolute SPECT/CT quantification: a multi-center and multi-vendor phantom study

System Center-specific CF* (cps/kBq) CF for Hermes SUV SPECT (kBq/cts)
Discovery NM/CT 670 Pro 0.075 0.128
Precedence 6 0.0986 0.143
Symbia Intevo 6 1.00 [-] 0.112
Symbia T16 system 1 0.0951 0.114
Symbia T16 system 2 0.110 0.110
  1. * CF calibration factor
  2. † Data is already quantitative in kBq therefore no calibration factor is stated