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. Author manuscript; available in PMC: 2016 May 1.

Published in final edited form as: NMR Biomed. 2015 Mar 23;28(5):555–565. doi: 10.1002/nbm.3284

Fig. 7 — Optimization of rCESTR MRI. a) Numerically derived peak rCNR for exchange rates from 20 to 1000 s⁻¹ (T_1w/T_2w=2s/100ms, δ_s=2 ppm at 4.7 Tesla). b) Simulated optimal B₁ levels for peak rCNR. c) Optimal B₁ levels for peak rCNR normalized by optimal B₁ levels for each exchange rate independently. d) Peak rCNR as a function of chemical shift.