Georg Bernd Fiedler1,
  2, Albrecht Ingo Schmid1, 3, Sigrun Goluch1,
  3, Ewald Moser1, 3, Martin Meyerspeer1,
  3
 1Center
  for Medical Physics and Biomedical Engineering, Medical University of Vienna,
  Vienna, Austria; 2MR Centre of Excellence, Medical University of
  Vienna, Vienna , Austria; 3MR Centre of Excellence, Medical
  University of Vienna, Vienna, Austria
In this study the SNR of 31P MRS with FID, STEAM and semi-LASER acquisitions with single-loop and 3-channel coils were compared at 3 and 7T in human muscle in vivo.