Re: [Freesurfer] Combining cross sectional and longitudinal analyses

2016-06-14 Thread Martin Reuter
Hi William, either way is fine, as long as you don't mix results from cross and long processing in your analysis. Since all images need to go through the cross sectional stream anyway, I think actually (2) will be less processing (and potentially less QC and editing). Best, Martin On 06/10/2

[Freesurfer] Combining cross sectional and longitudinal analyses

2016-06-10 Thread William Baare
Hi I have two groups I want to compare, in total 172 scans Of these 78 got a a follow up. Groups are approximately evenly distributed. I want to do first a cross sectional comparison and subsequently a longitudinal analysis for the 78 subjects only. My question is: (1) Is it is valid to analy