Dear Paul,
mris_expand can be used only in the hypothetical cases, where in all brain
systematically the surface is shifted to equal amount from the position which
is anatomically relevant.
Therefore it cannot be used to correct for local errors. To ilustrate the use
of this tool, see the scre
Hello Antonin,
GM/WM boundary = thickness. correct me if i am wrong. Shouldn't
expanding/shrinking the ?h.white or ?h.pial surface to the correct size and
shape help with that? I have moved the position of the ?h.white to capture
most of the WM using mris_expand but i haven't been successfully with
Dear Paul,
I am quite surprised that you were successful to estimate correct GM/WM
boundary using this tool. As far as I know and looking at the source code, this
tool GLOBALLY moves the position of the specified surface to some amount, so it
cannot be used to correct local errors. It is used e
Thanks bruce for your response. I am trying to expand the pial surface (see
attached image) in order to estimate the GM/WM boundary properly. I have
successfully expanded the white matter but when i tried the mris_expand
scripts for pial surface (mris_expand -thickness lh.pial 0.5 lh.newpial),
the
Hi Paul
it's hard to answer your questions without knowing what you are trying to
achieve
cheers
Bruce
On Wed, 11 Jan 2017, miracle ozzoude wrote:
Hello freesurfer,
I have several questions about mris_expand command. I know it can be used to
expand or shrink a point on a surface by a fixed
Hello freesurfer,
I have several questions about mris_expand command. I know it can be used
to expand or shrink a point on a surface by a fixed amount or distance. My
questions are:
1) Can it be used to expand the pial surface? if yes, please can you
confirm if this is the right script= mris_expan
