Hi Friends,
I have begun to use FSL for working with fMRI data. Now i got some issues with BET from Fsl. Since I am working in a study researching glaucoma issues (generally spoken ;) I need to keep the optical nerve or at least the chiasma alive. By altering the Threshold intensity and/or the Threshold gradient one can keep the optical nerve, I already figured that out, problem is - lots of little bone/tissue artefacts right next to the nerve that are giving trouble to the later FA value Interpretation. Now here is my question:
Do you have some tips besides altering Threshold/-gradient to make the optical nerve appear after Brain extraction?
Is there a Tool which allows you to manually extract /optimize extraction after bet like photoshop Cut-off-Tool?
Looking forward to your Responses!
Best regards
Frederik
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