Those labels are for gray matter structures

Cheers
Bruce



> On Sep 7, 2015, at 6:48 PM, John Anderson <j.ander...@publicist.com> wrote:
> 
> Hi Doug,
> Thank you for your response.
> When we open "wmparc.mgz" in freeview we can see clearly  that we have labels 
> for cortical parcellations and it is white matter parcellations as well as 
> the unsegmented white matter
> What is really confusing me is that deep structures like the thalamus, 
> amygdala, putamen, caudate, hypocampus .....etc  are also labeled in 
> "wmparc.mgz". Are these labels means the white matter part of these segments 
> or it is gray and white matter together like the segments mentioed in 
> "aseg.mgz" ?!
>  
> Please see the attached list of labels for one of my subjects.
>  
>  
> Bests,
> John Anderson
> 
> Senior Research Associate 
> Psychological and Brain Sciences Dept.
> Dartmouth College, 419 Moore Hall, Hinman Box 6207, Hanover, NH 03755
> Phone: +1 (603) 646-9834
> Fax: +1 (603) 646-1419
>  
>  
> Sent: Monday, September 07, 2015 at 1:02 PM
> From: "Douglas Greve" <gr...@nmr.mgh.harvard.edu>
> To: freesurfer@nmr.mgh.harvard.edu
> Subject: Re: [Freesurfer] Segmenting deep and outer white matter
> The best thing is to take a look at the wmparc. It was not really designed to 
> be deep and superficial. There is only one "deep"  WM seg which is called 
> "Unsgemented White Matter" or something like that.
> doug
>  
> On 9/5/15 5:54 PM, Bruce Fischl wrote:
> Hi John
> 
> I defer to Doug. Not sure he ever published it though
> Bruce
> On Sat, 5 Sep 2015, John Anderson wrote:
>  
> Hi Bruce,
> Thank you for your response!
> Actually, after reviewing  multiple papers ( segmentation in Freesurfer) I
> found that using "wmparc.mgz"  as an input in the command "mri_binarize"
> will enable me to create two mask ( depending on the white matter parcellate
> mentioned in wmparc.mgz): The first mask is for deep white matter and the
> second mask is for the outer white matter.
>  
> I am facing one problem right now. I don't know how to divide the white
> matter parcellates mentioned in "wmparc.mgz" into deep and outer
> parcellates. Is there any reference that can help. The number of the
> parcellate is very big and for the purposes of publication I need a
> reference to divide them.
>  
>  
> Any help is highly appreciated.
>  
> Bests,
> John Anderson
> 
> Senior Research Associate
> Psychological and Brain Sciences Dept.
> Dartmouth College, 419 Moore Hall, Hinman Box 6207, Hanover, NH 03755
> Phone: +1 (603) 646-9834
> Fax: +1 (603) 646-1419
>     Sent: Saturday, September 05, 2015 at 4:23 PM
> From: "Bruce Fischl" <fis...@nmr.mgh.harvard.edu>
> To: "Freesurfer support list" <freesurfer@nmr.mgh.harvard.edu>
> Subject: Re: [Freesurfer] Segmenting deep and outer white matter
> Hi John
> 
> sorry, meant to respond but spaced it. Have you checked out the
> wmparc.mgz? It may have what you need.
> 
> cheers
> Bruce
> On Sat, 5 Sep 2015, John Anderson
> wrote:
> 
> > Hi Freesurfers,
> > I am interested in studying the difference between the outer and deep
> white
> > matter volume in my study groups.
> >  
> > I am thinking in the following procedures:
> > 1. If there is any way in Freesurfer to do segmentation for the white
> matter
> > (only in the depth of 3 cm) starting from the cortex. Then  second
> > segmentation for the deep white matter. Is this possible in Freesurfer?
> > 2. Creating a mask ( using mri_binarize) for all the superficial white
> > matter Freesurfer's labels and another mask for the deep white matter  (
> how
> > can I find the Freesurfer  deep white matter labels and the outer white
> > matter labels ?)
> > 3. If there is any atlas that can separate the outer and deep white matter
> > then running recon-all depending on this new atlas.
> >  
> > Thanks in advance for any suggestion.
> > John 
> >
> >  
> > Bests,
> > John Anderson
> >
> > Senior Research Associate
> > Psychological and Brain Sciences Dept.
> > Dartmouth College, 419 Moore Hall, Hinman Box 6207, Hanover, NH 03755
> > Phone: +1 (603) 646-9834
> > Fax: +1 (603) 646-1419
> >
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