The way you probably want to do this is to register the CT to the MRI
(bbregister, creates an LTA registration file), then run mri_vol2surf,
passing it the LTA you created with bbregister. Then just load the
result as an overlay in freeview and specify whatever surface you want
(white, pial, inflated). It is generally set up to sample inside the
brain, so when you run mri_vol2surf, you may have to play with it a
little bit to make sure that it samples the electrodes. You can try
using the pial surface instead of the white (--surf) and use
--projdist-max. Run any of the programs with --help to get more details.
On 12/8/17 11:54 AM, Adam Li wrote:
Hi Freesurfer developers,
I am rather new (a few days in fact) to Freesurfer, so forgive me if I
have some lack of knowledge.
I am currently working with T1 MRI and CT scans of patients that are
undergoing epilepsy surgery, and am interested in using the
transformation that freesurfer uses to "inflate" the cortical surface
into a sphere for "inflating" the electrode contacts onto the
spherical surface as well.
However, I am not sure if Freesurfer saves this transformation matrix
done on the cortical surface? If so, is there a way I can extract that?
Thank you!
--
Best Regards,
Adam Li
Graduate Student in Biomedical Engineering
Johns Hopkins University & School of Medicine
(805) 807-5898 | LinkedIn <http://www.linkedin.com/in/adamli2392> |
Personal Website <http://adam2392.pythonanywhere.com/> | al...@jhu.edu
<mailto:al...@jhu.edu>
_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
_______________________________________________
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.
