hi
aside from new ROIS (i.e. the cingulate being divided into 3 parts), the 2009 looks like it has smoother/different boundaries than the 2005 one, even for ROIs that remain the same as the 2005. what is that a result of?
thanks, frida
Frida,
see this page for changes:
https://surfer.nmr.mgh.harvard.edu/fswiki/DestrieuxAtlasChanges
there's an HBM poster linked there as well. not sure when the paper is due.
n.
On Wed, 2010-04-07 at 10:54 -0400, Frida Polli wrote:
hi
aside from new ROIS (i.e. the cingulate being divided into 3 parts), the 2009 looks like it has smoother/different boundaries than the 2005 one, even for ROIs that remain the same as the 2005. what is that a result of?
thanks, frida
-- Frida E. Polli, PhD Postdoctoral Fellow Brain & Cognitive Sciences, MIT 43 Vassar St., Room 46-4033 Cambridge, MA 02139 email: fpolli@mit.edu tel: (617) 324 2897
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Hi Frida
I'm afraid I won't have any anatomical explanation for this smoothing, since most of the boundaries remained the same on the surfaces of the subjects used to train the atlas. I don't know if any minor changes occured in the labelling algorithm between these 2 versions ; maybe Bruce can tell.
Cheers
hi
aside from new ROIS (i.e. the cingulate being divided into 3 parts), the 2009 looks like it has smoother/different boundaries than the 2005 one, even for ROIs that remain the same as the 2005. what is that a result of?
thanks, frida
-- Frida E. Polli, PhD Postdoctoral Fellow Brain & Cognitive Sciences, MIT 43 Vassar St., Room 46-4033 Cambridge, MA 02139 email: fpolli@mit.edu mailto:fpolli@mit.edu tel: (617) 324 2897
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.
Hi Frida,
we model filter the output a 10 times by default. Not sure if this changed between versions, but it is the smoothing we do. You can change it by specifying the number of iterations with -f <# of iters> to mris_ca_label.
cheers Bruce On Wed, 7 Apr 2010, Christophe Destrieux wrote:
Hi Frida
I'm afraid I won't have any anatomical explanation for this smoothing, since most of the boundaries remained the same on the surfaces of the subjects used to train the atlas. I don't know if any minor changes occured in the labelling algorithm between these 2 versions ; maybe Bruce can tell.
Cheers
hi aside from new ROIS (i.e. the cingulate being divided into 3 parts), the 2009 looks like it has smoother/different boundaries than the 2005 one, even for ROIs that remain the same as the 2005. what is that a result of?
thanks, frida
-- Frida E. Polli, PhD Postdoctoral Fellow Brain & Cognitive Sciences, MIT 43 Vassar St., Room 46-4033 Cambridge, MA 02139 email: fpolli@mit.edu mailto:fpolli@mit.edu tel: (617) 324 2897
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@nmr.mgh.harvard.edu