--pdf delta expects the column row and slice indices of the vertex where
you want the delta to go (you are supplying an RAS). You need to
determine the index
On 8/12/2020 8:22 PM, Mauricio Watanabe Ribeiro wrote:
External Email - Use Caution
Hi Freesurfers,
I'm trying to create a ROI based on peak significance voxel from a
paper. They reported a peak at X=21, Y=-71, Z=22 and area of 4,620
mm², based on MNI305. My idea was creating a sphere ROI around this
voxel and check its area in the brain image.
To do so I'm using the following command:
mri_volsynth --template $SUBJECTS_DIR/fsaverage/mri/brainmask.mgz \
--pdf delta --c_ras 21 -71 22 --res 1 1 1 1 --dim 7 7 7 1 --o ROI.sm00.mgh
I also tried with --c_ras 107 106 57, that is the value of this point
on brainmask.mgz
However, when I visualize the surface created with freeview my ROI is
always in the center of the brainmask.mgz. And if I try to smooth this
surface using mris_fwhm it exits with error.
Can someone help me with this?
Thanks,
Mauricio
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