Hi Jon the parcellation labels are usually pretty accurate, particularly since gyral borders are pretty arbitrary. I wouldn't touch them unless you see a dramatic and obvious failure (e.g. precentral gyrus labeled as post-central). This happens pretty rarely though Bruce
On Fri, 31 May 2013, Jonathan Holt wrote: > Hi all, > > We are using the parcellation of Desikan-Killiany > > https://surfer.nmr.mgh.harvard.edu/fswiki/CorticalParcellation > > and creating labels for each structure in each hemisphere with: > > mri_annotation2label --subject ${SUBJ} --hemi ${HEMI} --outdir > ${SUBJ}/${SUBJ}_annotate > > and making matlab text readable (via matlab load command) thickness > files with: > > mris_convert -c ${HEMI}.thickkness ${HEMI}.white ${HEMI}.thickness.asc > > Then we are reading in the ascii thickness files and the labels and creating > histograms (unit area) for each structure for each participant, > essentially following: > > https://surfer.nmr.mgh.harvard.edu/fswiki/UserContributions/FAQ#Q.HowcanIma > > keahistogramofcorticalthickness.3F > > We've dropped the zeros but also dropping values of thickness identically = > 5mm. > > The question is: How important are parcellation edits, that is how accurate > are the generated segmentation labels, and should we be dedicating effort to > ensuring they're accurate and possibly editing them if not (if so, what > should be used as a guide/template?) > jon > > > > _______________________________________________ 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.
