Satra, The wiki page for cortical parcellation is found here:
https://surfer.nmr.mgh.harvard.edu/fswiki/CorticalParcellation A wiki page describing the steps in building an atlas for subcortical segmentation (aseg) does not yet exist. If you like I could help you create one and write it :) I've attached a script we use to rebuild an aseg atlas. Its cryptic, and can use some decoding (and an accompanying wiki page), buts it's a start. I'm not sure I fully understand what you want to do though. Do you want to parcellate the cerebellum based on curvature? I'm not sure this has been attempted (or possible, ie getting cerebellum curvature info). Volumetric segmentation of the cerebellum has been attempted though (but again, no wiki page yet). Let me know what you want to do. Nick On Fri, 2006-05-19 at 18:08 -0400, Bruce Fischl wrote: > Hi Satra, > > I guess you could incorporate your cerebellar labels into the aseg. Not > sure how accurate it would be, but should be easy to try. Use mri_ca_train > to create a new atlas after putting your manual labels in. Nick: is there a > wiki page outlining this procedure? > > cheers, > Bruce > > > > On Fri, 19 May 2006, Satrajit Ghosh > wrote: > > > 1. Is aparc+aseg.mgz supposed to contain the parcellated volume from > > subcortical and cortical parcellations? > > > > 2. We have manually parcellated volumes of the cerebellum. Is there a way we > > can incorporate this knowledge into autoseg process? Or is there an > > automatic lobular parcellation system for the cerebellum already? I > > understand that most T1 images don't have the resolution to do fine surface > > structure for the cerebellum, but here I'm looking for rough volume > > parcellation based on the major fissures. > > > > Thanks, > > > > Satra > > > > -- > > Satrajit Ghosh, PhD > > > > Speech Communication Group > > Research Laboratory of Electronics, MIT > > http://spouch.mit.edu/~satra > > > > > > _______________________________________________ > > 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 > >
rebuild_gca_atlas.csh
Description: application/shellscript
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