Table 4.

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

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

* CF calibration factor

† Data is already quantitative in kBq therefore no calibration factor is stated