In vivo quadrupolar splitting of potassium ( 39 K) MR spectra in human thigh muscle

Potassium ions are of fundamental importance in the physiology of living organisms. In human thigh muscle oscillations in the T ₂ ^* decay of ³⁹ K MR-signal have been observed. To investigate this effect, in vivo spectra of potassium and for comparison of sodium were acquired. The ³⁹ K spectrum of a human thigh muscle shows triplet splitting. Its peaks were quantitatively analyzed with the AMARES algorithm and led to results in agreement with the theory of quadrupolar splitting due to anisotropy.

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