Hi Prasanna, not sure what you are asking and what this has to do with longitudinal. But generally: subcortical segmentations are stored in the aseg.mgz file (this is true also for the longituinal stream, do not look at the aseg.fused.mgz , it is an intermediate step). Final results are in aseg.mgz.
Aparc is for the parcellations of the cortex. Freesurfer has tools to create e.g. a hippocampus mask from the aseg. mri_pretess can probably do it and cleans up the mask a little. Best, Martin On Fri, 2012-12-07 at 11:04 -0700, Prasanna M wrote: > Hi, > > > Do I work with aseg.fused.mgz or do I work with aparc files to get the > most accurate segmentation of brain structures? > > > > I tried using freeview to look at segmentations. Is there a way to > isolate mgz files of very specific structures. I mean, is there an > inbuilt tool which can do that for me, or would I have to go image by > image, and threshold to get, say the hippocampus? > > > Thanks, > Prasanna > > > > > > -- > -- > Let there be peace on earth... > And let it begin with me. > > > > > > > > _______________________________________________ > 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.
