Freesurfer Quality Control Guide
Step 2: Correct the White Matter surfaces to include any missing white matter
Step 2a: Load the target subject into FreeView using the terminal:
You can also open FreeView with all the appropriate files preloaded using the following commands:
export SUBJ=YourSubjectName freeview \ -v $SUBJECTS_DIR/$SUBJ/mri/orig.mgz \ -f $SUBJECTS_DIR/$SUBJ/surf/lh.white:edgecolor='0,0,255' \ -f $SUBJECTS_DIR/$SUBJ/surf/rh.white:edgecolor='0,0,255' &
Step 2b: -OR- Load the target subject into FreeView using the GUI:
In your terminal, open FreeView:
Load the following volume files for the subject you are editing:
Load the following surface files for that subject:
Adjust the colors of the surfaces so you can see white matter errors best. For example, For the white matter surfaces, we usually choose a color with good contrast like blue.
Step 2c: Add control points to mark white matter not inside the white matter surfaces
More on how to make these corrections is coming soon!
Step 2d: Re-process the brain
Now have FreeSurfer re-run the reconstruction, taking your brainmask edits into account. Enter the following command into the terminal:
recon-all -autorecon2-cp -autorecon3 -subjid $SUBJ
… where $SUBJ is the subject identifier. NB: This is a different command than the one used in Step 1! Re-processing the brain will take approximately 8 hours on the lab terminals. Use this time to work on another brain!