Have you looked at this page http://surfer.nmr.mgh.harvard.edu/fswiki/CoordinateSystems
doug On 07/16/2012 12:43 PM, jmd33 wrote: > > Hi, > > I'm working on a project project comparing the cortical thickness in > epileptic patients to the corresponding brain area of a control > subject. To do this, I have been trying to transform the patient RAS > coordinates to talairach coordinates and then transforming the > talairach coordinates into the RAS coordinates of the control. In > doing this, I have two problems. First, when I use the transformation > matrix provided in the free surfer subject folder (multiply RAS > coordinate by transformation matrix in /mri/transforms/talairach.xfm) > the coordinates seem to map to similar although not exactly the same > area. Second, what is the best way to transform a set a talairach > coordinates to RAS coordinates? > > Thank you for your help, > > Jared > > > > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer -- Douglas N. Greve, Ph.D. MGH-NMR Center gr...@nmr.mgh.harvard.edu Phone Number: 617-724-2358 Fax: 617-726-7422 Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html _______________________________________________ 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.
