Dear Lena,
If you have this problem only for one surface, I advise you to recreate the pial surface (recon-all -autorecon2-wm -?h, which will preserve your edits). This will very slightly change the topography of your pial surface. Then you can re-run the recon-all -lgi -?h. In 99.9% of the cases it will solve your problem.
Let me know if it doesn't work,
Marie
On 19 févr. 10, at 16:16, Lena Palaniyappan wrote:
Hi all
I am running recon-all –localGI One subjects image is not getting processed and crashes repeatedly with message that there may be a topological defect in a particular vertex. It asks me to check euler number. The wiki indicates that this crash is a known issue and restrating _mris_compute_lgi must solve this.
My questions are how to check the euler number and how to interpret this number in terms of topological defects? mris_compute_lgi does not find lh.pial surface when I TRY TO RESTART - what should I do? I used mris_compute_lgi subjid/surf/ lh.pial
Many thanks in advance Lena _______________________________________________________ Lena Palaniyappan Clinical Lecturer & Honorary StR | Division of Psychiatry ( University of Nottingham) South Block 'A' floor| Queens Medical Centre | Nottingham | NG7 2UH
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