Hi, Are the details of the partial volume corrections described anywhere on the wiki, I couldn't find anything? Is it just a certain percentage of the volume that is disregarded depending on the surface area, or is there a probabilistic labeling of the structures somewhere? Is it possible to get a mask of the structure that includes the partial volume correction, or one of the probabilistic labels (if such a thing exists)? thanks, mishkin
On Tue, Nov 25, 2008 at 1:22 PM, Doug Greve greve@nmr.mgh.harvard.edu wrote:
The aseg.stats is computed with a partial volume correction at the boundaries of the structures, tkmedit just counts voxels.
Yuan Xu wrote:
Hi FreeSurfer:
when I compare a brain structure volume count on the aseg.stats fileswith a volume of same structure measured using tkmedit "Segmentation Label Volume Count" feature to display on TkMedit Tools window. They are closer but not the same, usually about 3 to 10% difference. Why?
Thanks,
Yuan
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