Hello Stacey,
this issue came up recently, please find attached some responses. I hope this helps. Cheers, Jorge
On 21/03/2014 21:56, Stacey M Schaefer wrote:
Hello freesurfer gurus,
We acquire 2 BRAVO T1s on a GE 3T during the same scan session on most of our study participants, but because of various issues, occasionally only get 1 T1/participant. I've been processing the data combining both T1s when we have 2 and using just 1 T1 when that was all we had thinking it would be best to use the highest quality data as possible (more is better rational), especially given the old FS recommendation that multiple acquisitions were better. However, after perusing recent course materials, I came across the suggestion in one of the powerpoints to always be consistent across subjects using either 1 or 2. Is that the most recent recommendation - if we don't have 2 acquisitons on everyone to pick the one with best contrast and only use 1 T1/participant? If so, can you explain why?
Thanks for your advice! Stacey Schaefer
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Stacey M. Schaefer, Ph.D. Waisman Laboratory for Brain Imaging and Behavior University of Wisconsin - Madison 1500 Highland Ave Rm T127 Madison, WI 53705 Waisman Phone: 608-263-9321 _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
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