Dear Nathan,

There are usually 2 workarounds with this error: the first option is simply to try to rerun the lgi for this surface, you may have a little chance that it works fine until the end, which will solve your problem. If not, the second option is to recreate the problematic surface while preserving the manual edit (recon-all -autorecon2-wm - hemi ?h -randomness); the topology will slightly be changed, which will allow the lgi to run until the end in almost all the cases, let me know if not.

Hope it helps,

Marie

On 15 juin 10, at 21:20, Dankner, Nathan (NIH/NIMH) [F] wrote:

Hi All,

I'm running the lGI script on my subjects, and recently received this error:

... remeasuring lGI value for vertex iV = 64101. It may take a few minutes. WARNING -- Problem for vertex iV = 64101, lGI value is aberrantly high (lGI=59.4571)... ...lGI computation will be stopped. This may be caused by topological defects, check mris_euler_number on the pial surface.

ERROR: compute_lgi did not create output file '/misc/data14/jen/ SurfaceStats/BCM/surf/tmp-mris_compute_lgi-lh.pial/lh.pial_lgi.asc'! Linux thalamos 2.6.18-194.3.1.el5 #1 SMP Thu May 13 13:08:30 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux

recon-all exited with ERRORS at Mon Jun 14 19:20:30 EDT 2010

I've gone to the offending vertex in tkmedit and tksurfer to try to determine if there was some manual editing that needed to be done, but the area appeared to be fine. Any ideas on what the cause/ solution might be? Thanks,

Nathan

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