Re: [Freesurfer] wm-hypointensities variables

2016-02-14 Thread Otília
Thank you. Yes, I mean, I can find in literature several methods to estimate T1w and T2w lesion volumes. I guess the ones estimated from FS are the sum of these non-wm- and wm- hypointensities values (and not just wm-hypointensities), and are referred as T1w lesion volumes since the

[Freesurfer] eTIV question

2016-02-14 Thread angela . favaro
Dear Freesurfer experts, I have a question about eTIV (FS 5.3) which I use as a covariate where appropriate. Is it in some way influenced by the presence of brain atrophy? I have a new sample of subjects in a longitudinal study: at time 1 they have some atrophy (due to low body weight) that