Hi Yunxin
can you explain a bit more about what you are trying to achieve? We
already provide a tesselated representation of the pial surface. I
don't think it will be possible to discretize it into a volume and
retesseelate with a fast marching algorithm without giving up lots of
accuracy
cheers
Bruce
On Wed, 7 Aug 2013, Yunxin Wang wrote:
Hi Bruce,
Thanks very much for the explanation. According to your suggestion, I think
maybe I should try to figure it out with a 2D fast
marching process. I could extract it to a 2 dimension matrix by matlab with
FreeSurfer package, right?
Best,
Yunxin
2013/8/6 Bruce Fischl <fis...@nmr.mgh.harvard.edu>
Hi Yunxin
could you cc the list so that others can answer? I don't think you will
be able to get a reasonable surface out of a
discretized 256*3 volume for the pial surface. There are many, many
places where the pial surface comes within a
fraction of a mm of itself that you will not be able to represent.
cheers
Bruce
On Tue, 6 Aug 2013, Yunxin Wang wrote:
Hi Bruce,
Thanks for your response. Actually I want to use the fast marching
toolbox
to further analyze the pial surface that FreeSurfer has
reconstructed
automatically, but according to the procedure only the pial surface
will be
used for fast marching process and I found out the input file of
fast
marching is a 256*256*256 matlab file which I could just load in
matlab but
couldn't see any detail. Do you think I can use the
freesurfer_read_surf
function in matlab to transfer the surface?
Best,
Yunxin
2013/8/5 Bruce Fischl <fis...@nmr.mgh.harvard.edu>
Hi Yunxin
the surface lives in a continuum and is 2D. Do you mean
filling
the space between the ?h.white and ?h.pial surfaces? We do
that
as part of recon-all and create ribbon volumes in the mri dir
cheers
Bruce
On Mon, 5 Aug 2013, Yunxin Wang wrote:
Hi dear all,
I'm new here and I've a simple question that how
could I transfer the reconstructed pial surface
file(like lh.pial) into a
256*256*256 matlab matrix used in later fast
marching process?
Any suggestion will be appreciated!
Thank guys.
Best,
Yunxin Wang
The information in this e-mail is intended only for the person to
whom
it is
addressed. If you believe this e-mail was sent to you in error and
the
e-mail
contains patient information, please contact the Partners Compliance
HelpLine at
http://www.partners.org/complianceline . If the e-mail was sent to
you
in error
but does not contain patient information, please contact the sender
and properly
dispose of the e-mail.
_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
The information in this e-mail is intended only for the person to whom it is
addressed. If you believe this e-mail was sent to you in error and the e-mail
contains patient information, please contact the Partners Compliance HelpLine at
http://www.partners.org/complianceline . If the e-mail was sent to you in error
but does not contain patient information, please contact the sender and properly
dispose of the e-mail.
