How big? They use different programs so, depending on how big, it might just be a precision issue.
On 06/13/2012 04:38 PM, Shantanu Ghosh wrote: > hi doug, > i notice slight differences in numbers when using fscalc vs. fscalc.fsl > for calculating the z-score map\ I am just curious why it may happen > thanks in advance, > shantanu > > > > On Wed, June 13, 2012 3:31 pm, Douglas N Greve wrote: >> Use mris_preproc to collect your normal subjects into a single file. >> Then use mri_concat to compute the mean and stddev of your normals >> mri_concat file.mgh --mean mean.mgh >> mri_concat file.mgh --std std.mgh >> Then compute a z-score for your subject (after transforming to fsaverage >> space): >> fscalc subject.mgh sub mean.mgh div std.mgh -o z.mgh >> Visualize >> tksurfer fsaverage lh inflated -overlay z.mgh >> >> >> >> >> On 06/13/2012 11:26 AM, Shantanu Ghosh wrote: >>> Hi FS experts, >>> >>> Sorry if this is a newbie question. >>> >>> I want to display how an individual patient's crtical thickness varies >>> from the normal group average, vertex-by-vertex. What is the commandline >>> to do that? I want to display the overlay on MNI152 instead of >>> fsaverage. >>> >>> Thanks in advance, >>> Shantanu >>> >>> >>> >> -- >> 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 >> >> >> > -- 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.
