FMRI at ultra high field (7T) with GRAPPA and SENSE
Ugurbil K, Goerke U, Moeller S
University of Minnesota
Parallel imaging is a reconstruction technique which has enabled the trading of spatial SNR for either higher spatial or faster temporal resolution. The impact on the CNR for optimal fMRI studies is compared between SENSE and GRAPPA with a 1-dimensional reduction factor of 4. The noise, t-scores, p-values, and number of activated pixels are used to measure the differences.