ssage --
> From: "Harms, Michael"
> To: "freesurfer@nmr.mgh.harvard.edu"
> Cc:
> Date: Sun, 21 Feb 2016 18:10:12 +
> Subject: Re: [Freesurfer] eTIV question
>
> Hi,
> Why not use a measurement of brain size
yes, it's a somewhat different and more conservative test. I guess you
could check the talairach transforms of some of your subjects with eTIVs
that don't make sense (or change the most over time) to try to see why
this is happening. Or take Mike's suggestion and test a different (but
probably
Hi, thank you
I think this would test something different: 'how much a brain area is
atrophic controlling for the average brain atrophy' and not 'how much
a brain area is atrophic controlling for the individual differences in
head size'. Doesn't it?
Angela
"Harms, Michael" ha scritto:
> Hi,
>
Hi,
Why not use a measurement of brain size rather than “eTIV”?
cheers,
-MH
--
Michael Harms, Ph.D.
---
Conte Center for the Neuroscience of Mental Disorders
Washington University School of Medicine
Department of Psychiatry, Box 8134
660 S
there is a mistake in the graph, hippocampal volume is TIV2
I apologize for that!
Angela Favaro ha scritto:
> Hi Bruce,
> please find attached the graph of the correlation between the two time
> point. I did not find outliers or failures. However the discrepancy
> between TIVs is particularly hi
Hi Angel
the time1/time2 correlation of eTIV is pretty worrisome. Are you sure
that there aren't outliers/failures in that set?
Bruce
On Sun, 14 Feb 2016, angela.fav...@unipd.it wrote:
> Dear Freesurfer experts,
> I have a question about eTIV (FS 5.3) which I use as a covariate where
> approp
Hi all,
I would be very grateful of any advice for the problem below with e-TIV.
I have another problem with the longitudinal streaming (it is the first
time I use it). I am running the .base and .long procedure in subjects
with only one measure to include them in a mixed liner model analysis (as
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 improve
