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 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.

Thanks,

Yunjie
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