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Table 2 Measured count rates and scatter fraction for the mCT Flow system (NEMA NU2-2012) and comparison with the published values (NEMA NU2-2007) of the mCT system [6]

From: Performance evaluation of the Biograph mCT Flow PET/CT system according to the NEMA NU2-2012 standard

Parameter Measured (mCT Flow) Published (mCT) [6]
Peak true rate 634 kcps at 42.4 kBq/ml
Peak NECR 185 kcps at 29.0 kBq/ml (180 ± 8) kcps at (28.3 ± 0.6) kBq/ml
Scatter fraction at low counting rates 33.5 % at 0.5 kBq/ml 33.2 ± 0.7 %
Scatter fraction at Peak NECR 33.4 % at 29 kBq/ml