Hi Doug,

After resampling the aparc annotation into the functional native space, the LUT 
values no longer correspond to the correct regions. A screenshot is attached 
here: http://i.imgur.com/HNIgrKI.png

The values for the labels range from 1 - 35 only.

The command is mri_label2vol --annot $i/label/rh.aparc.annot --temp 
${i}_medn.nii --reg $i/fmri/fmri_t1_mricoreg.dat --fillthresh 0.5 --hemi rh 
--subject $i --proj frac 0 .1 1 --o ${i}.rh.aparc.in.func.nii

The goal is to apply the annotation and extract the regional fMRI data (4D) 
using this 3D volume parcellation. Could we achieve that by using these steps?

Thanks.

Best Wishes,
Elijah



On 13 June 2017 at 07:05:13, Douglas Greve (gr...@nmr.mgh.harvard.edu) wrote:

You can try mri_concat seg1.nii.gz seg2.nii.gz --sum --o seg.nii.gz

This will work if there are no overlapping voxels. If there are, you'll have to 
do something like

mri_mask seg1.nii.gz seg2.nii.gz seg1-masked.nii.gz

then use the masked in the mri_concat command


On 6/11/17 11:18 AM, Elijah Mak wrote:
Hi Freesurfer Team,

I am trying to resample the aparc annotation into functional space using 
mri_label2vol. It works fine and the script produced the segmentation for each 
hemisphere. Is there a way to merge both the left and right volumes together? 
Thanks for your help.

Best Wishes,
Elijah


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