Hi, Aziz

You can use MRIread function to read in a volume (i.e. brainmask.mgz). You will get a structure, which contains a field called ras2vox.

cheers

ruyuan

On 9/4/16 6:23 PM, Aziz Nanthaamornphong wrote:
Hi,

For example, I want to know the list of x, y, z coordinates of a left hippocampus volume.

As you mentioned "ras2vox" matrices, hoe can I see or get these matrices?

Thank you.
Aziz

On Monday, 5 September 2016, Bruce Fischl <fis...@nmr.mgh.harvard.edu <mailto:fis...@nmr.mgh.harvard.edu>> wrote:

    Hi Aziz

    can you elaborate? What coordinates do you want? What are you
    trying to do with them? The .mgz format contains ras2vox matrices
    that let you go from voxel indices to RAS coordinates and such.


    cheers
    Bruce


    On Sun, 4 Sep 2016, Aziz Nanthaamornphong wrote:

        Dear Freesurfer experts,
        How can we get the coordinates (X, Y, Z) of a particular
        volume? I couldn't
        find any functions or command to do that.

        Thank you in advance.

        Aziz.




--

Aziz Nanthaamornphong, Ph.D.,
Chair of Master of Science Program in Information Technology
Department of ICT
Faculty of Technology and Environment
Prince of Songkla University, Phuket Campus
+66 7627 6716 (v)
http://research.te.psu.ac.th/aziz




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