Abstract #3218

Effect of parallel imaging reference scan on fMRI evaluated at 7T.

Steen Moeller¹, Sudhir ramanna¹, Kamil ugurbil¹, and Essa Yacoub¹

¹Center for Magnetic Resonance Research, University of Minnesota, Minneapolis, MN, United States

Investigation on the effect of reference or calibration scans needed to reconstruct undersampled MRI data. The study covers 3 different acceleration factors, and 6 different reference acquisitions. It is found that scan to scan variability for common acceleration factors is larger than any difference in tSNR between FLASH and FLEET, and that segmented EPI and single-shot are inferior to FLASH and FLEET acquisitions.

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