Hi Michelle,

those aren't necessarily problems. We see this in lower quality scans where you get little 1d protruberances that have very small radius of curvature. Have you checked the ?h.white surface in those locations? At the end of the day, that's what you really care about. If you don't like them in your overlay for visualization purposes you could smooth the curvature a bit (tksurfer tools->surface->smooth curvature

cheers Bruce

On Thu, 12 May 2011, Michelle Umali wrote:

Hi Bruce and others, I've had trouble replying to your email requesting that I send an image (message got rejected).

I am attaching a single image with a slide showing my problems. I would like to submit one brainmask snapshot showing obscured parietal lobe issues. Please let me know when I can do that...

Many thanks. Michelle

Quoting Bruce Fischl fischl@nmr.mgh.harvard.edu:

...

Hi Michelle Can you send us an image with arrows to point out what you think are problems? Cheers Bruce

On May 9, 2011, at 11:51 PM, Michelle Umali muu1@columbia.edu wrote:

...

Dear Freesurfers, I've noticed some problems in some inflated brains with the curvature displayed that I know will require manual intervention:

-random spots of abnormally intense green or very intense red -tiny protrusions -falx cerebri obscuring parietal region -subcallosal splotches of red-green

I've been reading the troubleshooting webpages, but I am not sure what is causing the above issues.

Any suggestions on the appropriate edits would be greatly appreciated.

Thanks. Michelle _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer

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