Improved Two-Dimensional J-Resolved Spectroscopy
Schulte R, Lange T, Beck J, Meier D, Boesiger P
University and ETH Zurich
Localised two-dimensional J-resolved spectroscopy (JPRESS) is optimised for the in-vivo detection of J-coupled metabolites using magnetic resonance spectroscopy at 3 T. The acquisition of echo signals starts as early as possible (i.e., maximum-echo sampling). This sampling scheme increases sensitivity and decreases overlap of peak tails, hence alleviating baseline problems. The qualitative behaviour of eddy currents in JPRESS is outlined and a 2D eddy current correction procedure based on the 1D phase deconvolution method is proposed.