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Abstract #2004

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

Manuela B. Rsler 1 , Nadia Benkhedah 1 , Armin M. Nagel 1 , Tanja Platt 1 , Peter Bachert 1 , and Reiner Umathum 1

1 Medical Physics in Radiology, German Cancer Research Center (DKFZ), Heidelberg, Germany

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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