Peter Ullmann1, Johannes Thomas Schneider1,2, Martin Haas2, Ralph Wissmann1, Wolfgang Ruhm1
1Bruker BioSpin MRI GmbH, Ettlingen, Germany; 2Dept. of Diagnostic Radiology, Medical Physics, University Hospital Freiburg, Freiburg, Germany
Spatially-selective excitation (SSE) offers great potential for volume-selective MR-spectroscopy (MRS) by allowing the simultaneous excitation of multiple arbitrarily-shaped voxels which can be used to mitigate partial-volume effects and to increase SNR. With Parallel Excitation (PEX) the usability of SSE for MRS can be significantly enhanced due to the reduced durations and the improved spatial and spectral characteristics of the excitation pulses. In the present study the feasibility of PEX-based MRS is demonstrated by performing single- and simultaneous multi-voxel spectroscopic acquisition in a simple two-component sample using dual-band PEX-pulses.
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