Hi Victor

the best way to remove intensity inhomogeneities is with control points usually. The wm.mgz gives us an initial estimate of the surface locations, but we then deform it based on the intensities in the brain.mgz volume. So if it looks like wm extends that far out in the brain your wm.mgz edits are unliekly to fix things

cheers
Bruce


On Sun, 26 Apr 2020, Zeng, Victor (BIDMC - Keshavan - Psychiatry) wrote:



Hi Freesurfer developers,


I have a subsample of a FS dataset that have scanner-originated 
hyperintensities in the bilateral
supramarginal/temporal lobes. I've manually removed these hyperintensities by 
editing the wm.mgz, yet FS
seems to be unable to recognize these edits when looking at the ?h.white and 
aparc+aseg.mgz. Is there a
possible way to rectify these errors? 


I am using FS6 for linux


Here are some pictures: 


[IMAGE]​[IMAGE]


Victor Zeng
Beth Israel Deaconess Medical Center
Keshavan Lab
--

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