[Mristudio-users] Gray Matter DTI

[Christine Zakrzewski]

You could use FSL to accomplish this. Use the TBSS scripts to calcuate FA and diffusivity.  I am also pretty sure once you have spatially normailzed the images, you can use Talairach Daemon to define your ROIs.  I am just assuming it has this functionality.  I have only ever done this with AFNI.  My next idea would be to use Freesurfer.  As for segmenting tissue types, I think FIRST is used for this.  Hope this helps.Chrissy
 Date: Wed, 21 Mar 2012 15:03:28 -0400
From: rajagov2 at ccf.org
To: mristudio-users at mristudio.org
Subject: [Mristudio-users] Gray Matter DTI







Dear All,
 
I am interested in studying DTI changes (MD, I am wondering whether it will appropriate to study axial diffusivity also in the sense for instance  FA is more for WM than GM) in gray matter between control and our patient population. I am wondering what is way to segment white matter (WM) from gray matter (GM).
 
 I am also interested in extracting different lobes of the brain to study GM changes in each lobe. Basically based on our VBM results where I see GM volume changes I would like to study whether DTI measure MD changes in frontal, temporal, occipital and parietal lobes. If so, is there a way I can use the atlases to separate out different lobes of the brain.
 
Thanks
Venkat
 
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