Re: [Freesurfer] missing baseline in longitudinal analysis

2016-04-13 Thread Martin Reuter
Just leave out that row (second case) Best Martin On Apr 13, 2016 8:30 AM, Mihaela Stefan wrote:Hi Martin! Sorry to bug you but I have one more question. How do I create the Qdec table without the baseline for that subject? Do I leave the baseline time point out or I still enter it in the table?

Re: [Freesurfer] missing baseline in longitudinal analysis

2016-04-13 Thread Mihaela Stefan
Hi Martin, I am reposting this. Should we include the missing baseline in the qdec table or leave it out? Thanks! Mihaela On Wed, Apr 13, 2016 at 8:30 AM, Mihaela Stefan wrote: > Hi Martin! > Sorry to bug you but I have one more question. How do I create the Qdec > table without the baseline f

Re: [Freesurfer] missing baseline in longitudinal analysis

2016-04-13 Thread Mihaela Stefan
Hi Martin! Sorry to bug you but I have one more question. How do I create the Qdec table without the baseline for that subject? Do I leave the baseline time point out or I still enter it in the table? For example fsid fsid-base years Study1_Subj1_MRI0. Study1

Re: [Freesurfer] missing baseline in longitudinal analysis

2016-04-12 Thread Martin Reuter
It does not compute this. Often people use time-from-baseline for their analysis and control for age (@ baseline). Best Martin On Apr 12, 2016 6:23 PM, Mihaela Stefan wrote:Thanks Martin! Related to the longitudinal analysis, should we use the demeaned age at baseline or the LME package automatic

Re: [Freesurfer] missing baseline in longitudinal analysis

2016-04-12 Thread Mihaela Stefan
Thanks Martin! Related to the longitudinal analysis, should we use the demeaned age at baseline or the LME package automatically computes this? Thanks again! Mihaela On Apr 12, 2016 5:39 PM, "Martin Reuter" wrote: > Hi Michael, > the longitudinal image processing pipeline does not care which o

Re: [Freesurfer] missing baseline in longitudinal analysis

2016-04-12 Thread Martin Reuter
Hi Michael, the longitudinal  image processing pipeline does not care which one is baseline and which are follow ups. It only cares what images belong to the same subject. So, yes you can process this one with only two tone points instead of three. Best Martin On Apr 12, 2016 5:09 PM, Mihaela Stefa

[Freesurfer] missing baseline in longitudinal analysis

2016-04-12 Thread Mihaela Stefan
Hello FreeSurfers, We are conducting a longitudinal analysis and we have a subject who is missing the structural at baseline (it has fMRI data though). That subject returned for the 1st and the 2nd follow-up. Can we process the longitudinal pipeline the usual way and account for the missing baseli