In Vivo Liver 31P MRS at 7T: Initial Experience

Marek Chmelik¹, Stephan Gruber¹, Siegfried Trattnig¹, Wolfgang Bogner¹

The feasibility of hepatic in vivo localized ³¹P-MRS at 7T in clinically acceptable measurement time was tested using three different localization strategies (1D-ISIS, 3D-ISIS and hybrid 1D-ISIS/2D-CSI). The quality of acquired spectra was compared in terms of SNR, linewidths and PCr contamination from surrounding muscle. Liver ³¹P MRS at 7T provides improved data quality in acceptable measurement time. 3D-ISIS and 1D-ISIS/2D-CSI provide excellent localization whereas 1D-ISIS provides highest SNR in shortest time but higher contamination.