Hi Fraser

if you look at the mris_register help there is an option to specify a
manual label that corresponds to an atlas parcel:

        -L <labelfile atlas_gcsa_file label_name>
                 Specify a manual label to align with atlas label <label name>

in the past I have used this to draw a central sulcus and force it to align
using the Destrieux atlas (since Desikan/Killiany is gyral). There are some
very nice tools in freeview that make this pretty trivial. Overlay sulc on
the inflated surface, make sure that the dark gray of the central sulcus
(or red) isn't connected to anything else. If it is make a line using the
custom fill tool, then fill and save. Once you are familiar with the tools
it will take you about 60 seconds

cheers
Bruce


On Fri, 13 Mar 2020,
Fraser Smith wrote:

>
>         External Email - Use Caution        
>
> Hi there
>
> I have a clear parcellation error with one participant who does look to have
> an atypical structure around the right post-central gyrus (looks split in
> two).
>
> Both the pre and post central gyri are shifted significantly backwards – but
> only for the right not the left hemisphere.
>
> I see this has been mentioned before in the archives – but I have been
> unable to find a fix for this.
>
> Could you provide any tips on what to try? I am using v6.0.0.
>
> Best wishes
>
> Fraser Smith
>
>
>_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
MailScanner has detected a possible fraud attempt from "secure-web.cisco.com" claiming to be https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer