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Purpose
Ultrahigh field MRS has improved characterization of the neurochemical profile. To compare results obtained at 9.4T to those from lower field strengths, it is of interest to quantify the concentrations of metabolites measured. Thus, measuring T1‐relaxation times is necessary to correct for T1‐weighting that occurs in acquisitions for single‐voxel spectroscopy and spectroscopic imaging. A...
Purpose
To optimize pseudo‐continuous arterial spin labeling (pCASL) for 7 T, and to further improve the labeling efficiency with parallel RF transmission transmit B1 () shimming.
Methods
pCASL parameters were optimized based on field distributions at 7 T with simulation. To increase labeling efficiency, the amplitude at inflowing arteries was increased with parallel RF transmission...
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