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. Author manuscript; available in PMC: 2019 Jul 1.
Published in final edited form as: J Magn Reson. 2018 Jul;292:155–170. doi: 10.1016/j.jmr.2018.05.005

Fig. 2.

Fig. 2

(A) Field dependence of the in vivo 17O signal of brain tissue water. (B) Typical in vivo 31P MR spectra acquired from the human and cat visual cortex at varied magnetic field strength (B0) ranging from 4T to 16.4T. The spectrum at ultrahigh field is characterized by excellent spectral resolution and sensitivity, and a large number of well-resolved resonances including phosphoethanolamine (PE); phosphocholine (PC); inorganic phosphate (Pi); glycerophosphoethanolamine (GPE); glycerophosphocholine (GPC); phosphocreatine (PCr); adenosine triphosphate (ATP); and nicotinamide adenine dinucleotides (NAD).