The problem is probably that each label represents a finite amount of
space. If the space between your label points is much more than 1mm,
then you will get the pattern you show. How did you create the label in
the first place?
doug
On 9/16/13 4:43 PM, Lisa Prilop wrote:
Hi Bruce!
The command line I used was: mri_label2label --srcsubject pat3
--srclabel /home/lisap/CIMT/fscal/pat3/label/testsept9 --trgsubject
fsaverage --trglabel /home/lisap/CIMT/fscal/pat3/label/talairach
--regmethod volume . The testsept9 -label looks perfectly normal (but
corresponds to the original patient - on fsaverage it is wrongly
placed), the new talairach-label is the grid i attached as an jpg-file
- the location on fsaverage is correct (but not anymore so on the
individual patient).
Lisa
*Gesendet:* Montag, 16. September 2013 um 14:52 Uhr
*Von:* "Bruce Fischl" <fis...@nmr.mgh.harvard.edu>
*An:* "Lisa Prilop" <lisapri...@web.de>
*Cc:* freesurfer@nmr.mgh.harvard.edu
*Betreff:* Re: [Freesurfer] Mappin lesions labels to Talairach space
Hi Lisa what you are seeing is probably the effects of resampling.
What did the labels look like before mapping? And you need to send us
your full mri_label2label command line so that we (Doug?) can help.
cheers Bruce On Mon, 16 Sep 2013, Lisa Prilop wrote: > Hi, > I have
the following problem: I'm trying to map lesions from different >
patients into talairach space. I hand-drew the lesions and saved them
as > labels, then opened them on fsaverage. I didn't get an
error-message, but in > the direct comparison between the native label
(of the individual patient) > to the transformed label on fsaverage I
could see that the lesions were > wrongly placed. I tried that with
different flags on mri_label2label. Once > the place was roughly
correct but then the label itself looked different (it > was a grid).
What can I do to put that right? I attached a jpg-file > demonstrating
what i mean. > > Thanks for your help! > > Lisa Prilop > > The
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