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Thankyou Sir for your reply. Actually using mri_binarize is segmented the regions from the aseg.mgz. Now, i want to get the shape and then compare using voxel cordinates .

On Tue, Jan 1, 2019 at 1:17 AM Bruce Fischl fischl@nmr.mgh.harvard.edu wrote:

can you explain a bit more about what you are trying to do? If you extracted ROIs into label files it is just a list of coordinates, although probably not voxel indices. This page (thanks Doug!) explains our various coordinate systems and how to go from one to another:

http://freesurfer.net/fswiki/CoordinateSystems

cheers Bruce

On Sun, 30 Dec 2018, Sadia Sheikh wrote:

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Dear Freesurfer experts I am using freesurfer version 6.0. I have extracted ROI's from the

aseg.mgz file. Now is it possible

...

to get the cordinates of each voxel for a particular ROI?

Thanks in advance Regards Research student

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