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. Author manuscript; available in PMC: 2018 Aug 1.
Published in final edited form as: Mol Imaging Biol. 2018 Aug;20(4):575–583. doi: 10.1007/s11307-018-1164-4

Fig. 3.

Fig. 3

In vivo CEST spectra. The post-injection spectrum shows lower % water signal than the pre-injection spectrum at 4.2 and 5.6 ppm, for a a tumor with pHe 7.0, and b a tumor with pHe 6.8. c The difference between pre-injection and post-injection CEST spectra (blue circles) were fit with the Bloch-McConnell equations modified for chemical exchange (black line) for a tumor with pHe 7.0, and d a tumor with pHe 6.8.