Hi Yash
we already create the volumetric representations for you (e.g. the
aparc+aseg.mgz). You should be able to use it to generate histograms of
each parcel in 5-10 lines of matlab code
cheers
Bruce
On Wed, 22 Aug 2018, Yash Patel wrote:
External Email - Use Caution
Hi FS experts,
I am attempting to extract signal intensity from the middle of the cortex,
using mri_vol2surf. With said surface, I would like
to extract the mode (and other histogram measures) from each of the 34
parcellations of the DK atlas. I realize this needs to
be done in matlab, and hence the difficulty. Would I need to first convert the
segmentation volume (such as lh.aparc.annot )
into ".mgh" format, and use it with the output of mri_vol2surf which would be in
".mgh" surface format. Since I am a complete
beginner to matlab exemplary code would be very helpful.
Thank you,
Yash
On Wed, Mar 14, 2018 at 6:26 PM, Douglas N. Greve <dgr...@mgh.harvard.edu>
wrote:
No, sorry. You can do it easily enough in matlab, eg
seg = MRIread('seg.mgz');
input = MRIread('input.mgz');
ind = find(seg.vol == SegNo);
segmode = mode(input.vol(ind));
[h x] = hist(input.vol(ind),100);
On 03/13/2018 07:58 PM, Yash Patel wrote:
> Any updates or ideas in extracting histogram data from mri_segstats?
>
> On Sun, Mar 11, 2018 at 1:16 PM Yash Patel
> <ypa...@research.baycrest.org <mailto:ypa...@research.baycrest.org>>
> wrote:
>
> Dear all,
>
> I am using mri_segstats to obtain intensity values from each of
> the 34 cortical parcellations in the Desikan-Killiany Atlas; this
> provides metrics such as mean, min, max, range, and standard
> deviation.
> Is there a way to extract information such as the *mode*, or
> information to create a histogram for each of the particular
regions?
>
> Thank you,
> Yash
>
>
>
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