Thanks Doug,
I am having some trouble downloading this but the tksurfer interface
suffices for now.
I would still be interested in making a label from a volumetric
projection as this is something I can foresee being useful for other
things as well. Is there anyway to do this after a mri_vol2surf
projection? I would want to set a threshold and have anything above that
threshold be made into a label for that surface.
Cheers,
-Morgan
Doug Greve wrote:
I have a relatively new program that does this. Actually, it is an
old program with a cryptic name (mri_cor2label). I've put a new
(linux) version here:
ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/mri_cor2label
See the help.
I don't know why mri_mergelabels does not work. Is it possible that
the tail command is platform dependent?
doug
Morgan Hough wrote:
Hi Bruce,
I have been using mri_vol2surf to project nifti volumes onto subject
surfaces but I am not sure I understand how to then convert the ouput
.mgh file into a label that can then be used to sample the surface
measures of that subject. I have attached an image of one subject
(con_2304_roi_lh_lat.tif) with one volumetric ROI projected to the
surface. As you can see it contains perhaps three patches that I
would like to treat as one label with which I could then use to
sample the surface measures of the subject. Is this something I can
do with mri_vol2surf?
If I draw three labels on that subjects' surface, how do you then
merge those labels together to be able to sample from the combined
area? I have tried mri_mergelabel but I get a tail error when I try
this:
mri_mergelabels -i ./lh.it-sts.roi.label -i ./lh.it.roi.label -o
lh.combo-it.label
tail: cannot open `+3' for reading: No such file or directory
tail: cannot open `+3' for reading: No such file or directory
Done
Cheers,
-Morgan
Bruce Fischl wrote:
Hi Morgan,
what format is your volume ROI in? I think Doug's mri_vol2surf will
do this. If you have it in our label format file, then just loading
it into tksurfer will work if all the vertex #s are -1 (it will
sample it onto the surface)
Bruce
On Thu, 24 May 2007, Morgan Hough wrote:
I was wondering if I can make a cortical label from a volume ROI
from the commandline. I would like to extract thickness values from
a region defined in each subject's volume space. Thanks in advance.
Cheers,
-Morgan
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Douglas N. Greve, Ph.D.
MGH-NMR Center
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Phone Number: 617-724-2358
Fax: 617-726-7422
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