Hi Bruce,
Thanks for responding so quickly. I think it's the volume label I want although honestly, I'm still not confident that I understand the language. The vectors for which I need the associated label(s) can be almost anywhere in the volume of the head. And for each one, I need to get the label(s) for the nearest vector that freesurfer has identified. It would work for my purpose if that label was for the nearest vector on a surface, particularly orig, white, or pial.
Don
Don Krieger, Ph.D. Department of Neurological Surgery University of Pittsburgh (412)648-9654 Office (412)521-4431 Cell/Text
________________________________________ From: freesurfer-bounces@nmr.mgh.harvard.edu [freesurfer-bounces@nmr.mgh.harvard.edu] on behalf of Bruce Fischl [fischl@nmr.mgh.harvard.edu] Sent: Friday, August 08, 2014 11:15 AM To: Freesurfer support list Subject: Re: [Freesurfer] Tool which will return the labels associated with a RAS vector ?
Hi Don
what kind of label do you mean? Volume (aseg) or surface (annot). I guess you could just pick out the aparc+aseg.mgz label and get both.
cheers Bruce
On Fri, 8 Aug 2014, Krieger, Donald N. wrote:
Hi,
I am almost there and now need to produce what you might call an atlas for an individual. I have a large set of current source locations extracted from MEG recordings for each volunteer. They are in the individual's RAS MRI coordinates so I can easily convert them to tkr or another of the coordinate systems used by freesurfer. I then need to find or create a tool to which I can hand that vector and get back the labels which have been assigned to it. Can you see a way to do it with existing freesurfer tools, even if it's awkward?
Thanks,
Don
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