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. Author manuscript; available in PMC: 2016 May 27.
Published in final edited form as: Contrast Media Mol Imaging. 2012 Jan-Feb;7(1):26–34. doi: 10.1002/cmmi.460

Figure 3.

Figure 3

The dependence of CEST on saturation time. The percentage CEST effects of the amide (solid circles) and amine (open circles) of 30 mm of Yb–DO3A–oAA were measured at pH 6.32 and 38.3°C using 10 µT saturation power. The QUEST equation was fitted to each CEST effect (solid lines) (35). The amide/amine ratio of the CEST effects (diamonds) showed no dependence on the saturation time (the dotted line represents the linear fitting of the ratio of the CEST effects).