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Dear Freesurfer Support,
I'm reviewing a specific MRI image that I have processed with Freesurfer V5.3. I'm concerned about a potential issue with voxels missing from the WM surface. This appears to impacting the pial boundaries and lateral ventricle labels in the aseg from slices 56-99. For reference, I attached 5 images (both wm and brainmask surfaces) that are each 5 slices apart. Happy to upload the whole series of images if this would be helpful.
Would you recommend filling in some of the voxels near the lateral ventricles? My concern is that I am unsure where the ventricle begins, as I suspect the gyrus at the rh pericalcarine surface is not being properly labelled and identified in the pial surface. Any advice you can provide will be greatly appreciated.
Kind regards,
Bronwyn Overs
Senior Research Assistant
Neuroscience Research Australia Margarete Ainsworth Building Barker Street Randwick Sydney NSW 2031 Australia M 0411 308 769 T +61 2 9399 1725
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