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Table 3 Sensitivity test results: comparison between the average sensitivity measured and theoretical values relative to 18F

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

Isotope Branching ratio Average sensitivity measured (cps/kBq) Theoretical values (cps/kBq)a
18F 0.968 21.5
68Ga 0.879 19.9 19.5
90Y 31.86·10−6 0.6 6 · 10−3 0.71·10−3
  1. aValues relative to 18F-measured value