Hello
Im doing a thalamus volumetric analysis between two populations and checking the thalamus segmentation I found some pixels classified as white matter hipointensities inside the thalamus. Do they affect the volume measure of this structure reported by FreeSurfer. In the positive case, how can I fix that problem? I attached an image.
Thanks
Abel
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Yes, they do. You can edit the aseg.mgz and rerun. You probably only need to re-run the segstats part of the recon.
abel cruz vadell wrote:
Hello
I'm doing a thalamus volumetric analysis between two populations and checking the thalamus segmentation I found some pixels classified as white matter hipointensities inside the thalamus. Do they affect the volume measure of this structure reported by FreeSurfer. In the positive case, how can I fix that problem? I attached an image.
Thanks
Abel
______________________________________________Enviado desde Correo Yahoo! La bandeja de entrada más inteligente.
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Hi Abel,
yes, they will change the volume. You can manually correct them in the aseg.mgz if you want.
cheers, Bruce On Fri, 18 Apr 2008, abel cruz vadell wrote:
Hello
Im doing a thalamus volumetric analysis between two populations and checking the thalamus segmentation I found some pixels classified as white matter hipointensities inside the thalamus. Do they affect the volume measure of this structure reported by FreeSurfer. In the positive case, how can I fix that problem? I attached an image.
Thanks
Abel
______________________________________________Enviado desde Correo Yahoo! La bandeja de entrada más inteligente.
freesurfer@nmr.mgh.harvard.edu