We did an analysis on our ASL data using FSL feat following the web instructions. We then conducted an ROI analysis using featquery on the perfusion EV (the interaction of control-tag EV with the bold EV). My question is, what unit is used for the mean signal perfusion signal of the ROI? Also, is there a way to get quantitative perfusion measurement from the ROI analysis?
Thank you,
Natalie Paul
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