Not sure what you are trying to do. extracting the vent vol to a surface
does not make sense to me
On 1/28/2022 1:23 PM, Zeng, Qi wrote:
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Hi,
I saw the same question has been asked and no answer was provided:
I run
"mri_cor2label --c fsaverage/mri/aseg.mgz --id 4 --l
fsaverage/label/Left-Lateral-Ventricle.label --surf fsaverage lh" -
to hopefully extract lateral ventricles volume into a overlay of
surface base. however, gave me error: "dim mismatch between surface
(100515) and input (16777216)". What should I change?
BTW, Also have questions for the following steps and hope you can
answer that too:
1. convert surface-based label to volume,
"mri_label2vol --label fsaverage/label/Left-Lateral-Ventricle.label
--subject fsaverage --hemi lh --identify --temp fsaverage/mri/T1.mgz
--o fsaverage/mri/lh.Left-Lateral-Ventricle.nii --proj frac 0 1 0.01
2. Better ROI with mri_binarize
"mri_binarize" --dilate 1 -erode 1 --i
fsaverage/mri/h.Left-Lateral-Ventricle.nii --o
fsaverage/mri/h.Left-Lateral-Ventricle.nii --min 1
3. constrain the thick ROI
"mris_calc -o fsaverage/mri/h.Left-Lateral-Ventricle.nii
fsaverage/mri/h.Left-Lateral-Ventricle.nii mul
fsaverage/mri/h.Left-Lateral-Ventricle.ribbon.mgz
4. Questions: Are the aforementioned steps correct? In the end, if I
have a couple of ROIs, what should I use to combine them. or just load
them separately with lh.white and lh.pial.
Best,
Qi
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