Dear Doug, thank you so much. I now have a value for each of my participants. Since I work with rate of change from pre to post time point I should interpret these values as mm per year that each subjects changes in thickness in this cluster, right? Because I have values between -3.37363 and 2.99830. Does that mean that these subject would lose or gain 3 mm per year in thickness in this specific area?
Thank you for you help! Clara ----- Ursprüngliche Mail ----- Von: "Douglas N Greve" <gr...@nmr.mgh.harvard.edu> An: freesurfer@nmr.mgh.harvard.edu Gesendet: Donnerstag, 27. Juli 2017 19:10:50 Betreff: Re: [Freesurfer] extract values for significant cluster You can use mri_segstats specifying the ocn as the segmentation, the stack of thicknesses as the input, and --avgwf file.dat as the output. Make sure to add --excludeid 0 to exclude background voxels On 07/27/2017 06:18 AM, Clara Kühn wrote: > Dear FreeSurfer experts, > > in the longitudinal 2 stage model I find a difference in rate between my two > groups in right intra parietal sulcus for surface area (survives MC > correction). I would like to look at the cortical thickness in that same > cluster. Is it possible to use any of the output files from the MC correction > as a mask or something to get the rate of change values for thickness in that > region? Even though this region does not show a significant difference > between the groups I would like to look at the individual values for rate of > change in that specific region (like the ones I received in the > cache.th30.abs.y.ocn.dat file) > > Could you please tell me if this is possible and how? > > Thank you very much! > Clara > -- 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. _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
