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Abstract #2947

Human In Vivo 25Mg Spectroscopy and Imaging at 7T

Nicolas G. R. Behl1, Armin M. Nagel1,2, Florian Maier1, Peter Bachert1, Mark E. Ladd1, and Reiner Umathum1

1Medical Physics in Radiology, German Cancer Research Center (DKFZ), Heidelberg, Germany, 2Institute of Radiology, University Hospital Erlangen, Erlangen, Germany

25Mg spectroscopy and imaging were performed for the first time in vivo. T1 and T2* of 25Mg were evaluated in model solutions and T2* was additionally estimated in vivo for the human calf. 25Mg spectroscopy of an MgCl2 model solution exhibits a single resonance attributed to free 25Mg2+ ions, while in vivo spectroscopy of a human calf displays an additional resonance possibly attributable to bound 25Mg. Phantom and in vivo 25Mg imaging of the human calf were performed with a voxel size of 25×25×25 mm3.

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