No, not currently. This is quite a hard problem even if you have a T2. The pulse sequences are usually low enough bandwidth that fat from the scalp and skull marrow shift into the CSF spaces making it impossible to properly segment that area as CSF. If you wanted an approximate value, you could create a binary mask from the aparc+aseg.mgz, dilated it by 3 or 4 voxels, then erode it by the same amount, then remove the original mask. The remaining voxels will be something like the sulcal CSF.
doug
On 10/22/2014 04:50 PM, Mohammed Goryawala wrote:
Hello FreeSurfer Experts,
Is it possible to estimate the sulcal CSF volume in Freesurfer processing? If not directly are there any indirect means that can give me an estimate?
Thank you
Mohammed Goryawala, PhD Department of Radiology Miller School of Medicine, University of Miami
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