Hi Bruce, We wanted to map values from a previous analysis to a representation of the brain with the sulci filled — something that resembles the output lh.pial-outer-smoothed from the recon-all -localGI. I tried using mri_surf2surf, but I get the error:
ERROR: dimension inconsistency in source data
Number of surface vertices = 163842
Number of value vertices = 73466
My command: mri_surf2surf --srcsubject fsaverage_1 --trgsubject fsaverage
--sval ./lh.test.nii --tval lh.pial-outer-smoothed2white.nii --hemi lh
fsaverage_1 is a copy of fsaverage that I ran recon-all -localGI on to get the
pial-outer-smoothed surface.
Ryan Michael Nillo
Staff Research Associate I
University of California San Francisco
Department of Radiology and Biomedical Imaging
> On Jul 1, 2019, at 10:27 AM, Bruce Fischl <fis...@nmr.mgh.harvard.edu> wrote:
>
> Hi Ryan
>
> I'm not sure why you would have a surface with 73K vertices on fsaverage. Why
> not use one of the ico representations (40K or 160K vertices)? In any case,
> mri_surf2surf should do the trick, although you will probably need to create
> a new subject with a set of 73K vertex surfaces
>
> cheers
> Bruce
> On Mon, 1 Jul 2019, Nillo, Ryan Michael R wrote:
>
>> Hello Freesurfer users/developers,
>> I have surface with ~73,400 vertices generated from the Freesurfer version 6
>> fsaverage brain, left hemisphere. I have a surface map that was created by
>> mapping a volume to the fsaverage white surface. Is there a way to map the
>> surface map to the new surface with less vertices? Is there a way to map
>> values from the 73,000 vertices-map to the standard fsaverage pal surface?
>> Thanks in advance,
>> Ryan Michael Nillo
>> Staff Research Associate I
>> University of California San Francisco
>> Department of Radiology and Biomedical Imaging
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