Skip to main content
. Author manuscript; available in PMC: 2012 Oct 1.
Published in final edited form as: Magn Reson Med. 2011 Mar 22;66(4):1100–1108. doi: 10.1002/mrm.22884

FIG. 4.

FIG. 4

Simulated optimal θ as a function of duty cycle (a), frequency offset (b), exchange rate (c), and solute concentration (d) in the two-pool (triangle) and three-pool model (circle). The non-specified sample parameters are from the fitting results of a CW-CEST experiment on a creatine/agar phantom. Calculations were performed for a range of θ (140° – 220°) with a step of 10°, resulting in discrete jumps. For (b), (c), and (d), dc = 50%. Note that the optimal θ, which is around 180°, is roughly independent of the duty cycle, frequency offset, exchange rate, and concentration.