I know in the past, it was recommended to acquire 2 T1 scans so that they could be averaged for better SNR, etc. in order to improve cortical thickness and surface area measurements. Is this still the recommendation? We have a few extra minutes in our scanning protocol and are debating whether to include a 2nd T1.

Our parameters are: MPRAGE with .8mm^3 voxel size, slice thickness of .8, FA = 8 degrees, TR = 2400ms, TE = 2.72ms, TI = 1060ms.

Best,
Alessandra
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