Re: [Freesurfer] Re global lgi values

yes and yes

On 11/13/2013 12:04 PM, Anna Jonsson wrote:

Thank you very much. By second I assume you mean second row? And out of the values on the second row it must be the value 2.9472? Is it headed by Area_mm2 or Mean? And what are the units?

Thanks again

On Wed, Nov 13, 2013 at 4:56 PM, Douglas N Greve <greve@nmr.mgh.harvard.edu mailto:greve@nmr.mgh.harvard.edu> wrote:

that looks correct. It is the 2nd number you want. The first is
for the
medial wall (not interesting). You can have it report only for
cortex by
adding --id 1

doug


On 11/13/2013 11:45 AM, Anna Jonsson wrote:
> Dear list,
>
> I have a question about extracting global lgi values/hemisphere. I
> think I have managed to do it correctly using :
>
>   mri_segstats --slabel subj lh
$SUBJECTS_DIR/subj/label/lh.cortex --i
$SUBJECTS_DIR/subj/surf/lh.pial_lgi --sum lh.aparc.pial_lgi.stats
>
> (Please let me know if this is not correct)
>
>
> I then get this output ( for each individual)
>
>   ColHeaders  Index SegId NVertices Area_mm2 StructName Mean
StdDev Min Max Range
>    1   0      7953     5220.0  Seg0000     2.4055   0.4052    
1.5796     2.9763     1.3967
>
>    2   1    156737   101379.9  Seg0001     2.9472   0.9038    
1.7030     6.0007     4.2977
>
> I assume one of these values (if above command has worked
correctly) contains the mean lgi value for the left hemisphere.
Can somebody please tell me which of the above values is the
correct lgi value? Additionally, what units are lgi measured in,
and are values between 1-5 what is considered normal?
>
>
> Thank you very much
>
> Anna
>
>
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--
Douglas N. Greve, Ph.D.
MGH-NMR Center
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