Thank you Douglas I will try this. Matthieu Vanhoutte, MSc Research Engineer - Neuroradiology Department Regional University Hospital, Lille, France Le 16 mars 2015 19:13, "Douglas N Greve" <gr...@nmr.mgh.harvard.edu> a écrit :
> > For visualizing the overlap, I would probably create a segmentation in > which each vertex is either 1 (present in thickness), 2 (present in > CBF), or 3 present in both. You can do this in matlab or with a > combination of mri_binarize and fscalc. You can then create an > annotation from the seg with mris_seg2annot. I would compute a dice > coefficent of the overlap in matlab, something like > > dice = n12/((n1+n2)/2) > > where n1 is the number of vetices in thick, n2 for cbf, and n12 is the > number that overlap > > doug > > On 03/16/2015 12:09 PM, Matthieu Vanhoutte wrote: > > Dear FreeSurer's experts, > > > > I used group analysis based on GLM to compute significative surface > > maps of different characteristics : thickness, CBF,... > > > > Now I've got these maps I would like to visualize overlaps between two > > different maps and compute the overlap ratio. > > > > How could I succeed these two steps ? > > > > Best regards, > > > > ------------------------------------- > > Matthieu Vanhoutte, MSc > > Research Engineer - Department of Neuroradiology > > Regional University Hospital, Lille, France > > > > > > _______________________________________________ > > 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: https://gate.nmr.mgh.harvard.edu/filedrop2 > www.nmr.mgh.harvard.edu/facility/filedrop/index.html > Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/ > > _______________________________________________ > 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. > >
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