don't rerun that as it will rerun the surface deformation. Use mris_thickness and mris_curvature

On Sun, 11 May 2014, S.V.Shepherd [work] wrote:

Looking over our scripts, it appears we normally generates the surfaces etc. 
through
  recon-all -autorecon2-wm <...> -noaseg
despite that ?h.pial isn't explicitly listed as an output in the dev table
(http://surfer.nmr.mgh.harvard.edu/fswiki/ReconAllDevTable).

It looks like a step from autorecon3 might be useful:
  mris_make_surfaces <subjID> ?h -orig_white ?h.orig orig_pial ?h.pial
to update the curvature and thickness files without changing the wm and pial -- 
but I'm not
sure this is how it works.

stephen

stephen v. shepherd   phd
The Rockefeller University / 1230 York Avenue / New York NY 10065-6307 USA // 
212.327.7620


On Sun, May 11, 2014 at 5:22 PM, S.V.Shepherd [work] 
<stephen.v.sheph...@gmail.com> wrote:
      Hi Bruce,

      How would I go about updating the thickness estimates (?h.thickness, I 
presume)
      after manually adjusting the pial surface in FreeView?  Are the other 
surfaces
      (inflated, sphere, etc.) unaffected by this change, or should they be
      recalculated as well?

      stephen

stephen v. shepherd   phd
The Rockefeller University / 1230 York Avenue / New York NY 10065-6307 USA //
212.327.7620


On Sun, May 11, 2014 at 3:51 PM, Bruce Fischl <fis...@nmr.mgh.harvard.edu> 
wrote:
      Hi Stephen

      only the thickness estimates should matter, unless you've lost an entire
      gyrus or something
      Bruce

      On Sun, 11 May 2014, S.V.Shepherd [work] wrote:

            Hi Bruce,

            This is the manual edit of the pial surface in FreeView,
            correcting locations where the grey
            matter failed to grow out of the white matter. It took place
            after the pipeline had
            completed, but I'm not sure if I need to rerun/regenerate
            steps which are dependent on the
            pial surface. For example, are mris_sphere, mris_curvature,
            and mris_flatten dependent upon
            the pial surface or cortical thickness, or do they work
            directly off the wm/orig surface? 
            If the former, I should rerun them; if the latter I don't need
            to do anything but just
            repaint the functional statistics of interest using
            mri_vol2surf and the updated cortical
            bounds (which I presume happens automatically, having
            corrected ?h.pial).

            My comment about morphometry was meant to note that, since I'm
            manually changing the
            distance between the wm and pial surface in places where there
            were medial surface
            artifacts, it would be unwise to try to draw any conclusions
            from comparing
            manually-adjusted and automatically-calculated cortical
            thicknesses.

            stephen




            stephen v. shepherd   phd
            The Rockefeller University / 1230 York Avenue / New York
            NY 10065-6307 USA // 212.327.7620


            On Sun, May 11, 2014 at 9:50 AM, Bruce Fischl
            <fis...@nmr.mgh.harvard.edu> wrote:
                  Hi Stephen

                  why do you say it invalidates the morphometry? And we
            need to know what pial
                  surface editing you did in order to answer your
            questions (and what recon-all
                  steps you rerean)

                  cheers
                  Bruce


                  On Sun, 11 May 2014, S.V.Shepherd [work] wrote:

                        Hi Bruce,

                        Thanks again for your help at the FreeSurfer
            course. I've corrected
                        the pial surface
                        manually (knowing that this invalidates the
            morphometry, but that by
                        restoring the medial
                        surface it does let me process functional data). 
            Having done this,
                        do I need to remake
                        spheres and patches, or are these unchanged?  For
            example, when
                        using mri_vol2surf, does
                        freesurfer know what elements to sample by
            consulting the ?h.orig
                        and ?h.pial, or are there
                        downstream files I should update as well?

                        Thanks!

                        stephen




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