Hello freesurfers,
In the attached pic, the red cross hairs fall in the calcarine fissure (right hemisphere). In this scan (and some others I've reviewed recently), this cortex falls within the wm surface and is therefore excluded from the cortical surface. This is despite that area not being labeled as white matter in the wm.mgz volume. It's also despite my efforts to creatively erase wm volume voxels to encourage the wm surface to exclude these cortical voxels. Is there a fix for this type of error?
The data were generated with FS v5.3. No control points were set. Thanks for any help, Jason
Hi Jason
what does the aseg look like? Is that labeled as ventricle (incorrectly)? Bruce On Wed, 10 Jul 2013, Jason Tourville wrote:
Hello freesurfers,
In the attached pic, the red cross hairs fall in the calcarine fissure (right hemisphere). In this scan (and some others I've reviewed recently), this cortex falls within the wm surface and is therefore excluded from the cortical surface. This is despite that area not being labeled as white matter in the wm.mgz volume. It's also despite my efforts to creatively erase wm volume voxels to encourage the wm surface to exclude these cortical voxels. Is there a fix for this type of error?
The data were generated with FS v5.3. No control points were set. Thanks for any help, Jason
-- Jason A. Tourville, Ph.D. Research Assistant Professor Department of Speech, Language, and Hearing Sciences Boston University 677 Beacon St. Boston, MA 02215 Phone: (617)353-9484 Fax: (617)353-7755
-- Jason A. Tourville, Ph.D. Research Assistant Professor Department of Speech, Language, and Hearing Sciences Boston University 677 Beacon St. Boston, MA 02215 Phone: (617)353-9484 Fax: (617)353-7755
freesurfer@nmr.mgh.harvard.edu
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Bruce Fischl -
Jason Tourville