yup, or mri_Info called form the command line. If you use MRIread on the aseg.mgz you can extract e.g. the left hippocampus using matlab via:

mri = MRIread('aseg.mgz');
find(mri.vol == 17);
then compute the ras coords of those indices using ind2sub

cheers
Bruce

On Sun, 4 Sep 2016, Ruyuan Zhang wrote:


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>
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




_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer


The information in this e-mail is intended only for the person to whom it is
addressed. If you believe this e-mail was sent to you in error and the e-mai
l
contains patient information, please contact the Partners Compliance HelpLin
e at
http://www.partners.org/complianceline . If the e-mail was sent to you in er
ror
but does not contain patient information, please contact the sender and prop
erly
dispose of the e-mail.



_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer


The information in this e-mail is intended only for the person to whom it is
addressed. If you believe this e-mail was sent to you in error and the e-mail
contains patient information, please contact the Partners Compliance HelpLine at
http://www.partners.org/complianceline . If the e-mail was sent to you in error
but does not contain patient information, please contact the sender and properly
dispose of the e-mail.

Reply via email to