Hi freesurfer experts,
I have a single subject anatomical data in freesurfer. If I know the
volume index of a point on the surface of the cortex ( from T1.mgz in
TkMedit), how can I find out the corresponding vertex index or the
vertex RAS in TkSurfer. Thanks. BTW, I am using matlab.
Than
if you have the voxel index (col, row, slice) then you can:
V2R = [
-1.00.00.0 128.0
0.00.01.0 -128.0
0.0 -1.00.0 128.0
0.00.00.01.0 ]
crs = [col row slice]';
xyz = V2R[crs+1; 1];
then f
Hi Yunjie,
check out:
http://surfer.nmr.mgh.harvard.edu/fswiki/CoordinateSystems?action=AttachFile&do=view&target=fscoordinates.ppt
there is also more coordinate system info on the wiki that should let you
know what you need.
cheers,
Bruce
On
Fri, 19 Dec 2008, Yunjie Tong wrote:
Hi free
Hi everyone,
what is the difference in functionality between the mri_*
commands and the mris_*
commands?
How does the mris_fill command maintain the distinction
between the left and the
right hemisphere? I see only one filled.mgz having 2 labels? does it write
Hi Sid,
the mri_* command in general operate on volumes and the mris_* commands
on surfaces. mri_fill uses different label for the lh and rh, and one
call will fill both hemispheres, but if you mean mris_fill, then it takes
any surface and fills the interior, so it would only do 1 hemi at a ti
Hi Bruce,
Thanks a lot. In case mris_fill operates on one hemisphere at a
time, i would
expect there to be 2 filled.mgz, one per hemisphere. At what stage (and how)
are they combined?
Yes, i did mean mri_morphology, sorry for the typo.
thanks again,
