Dear freesurfer users,
I run the command *'recon-all -lgi' *for my participants and for two of
them I get the following error message:
... remeasuring lGI value for vertex iV = 39301. It may take a few minutes.
WARNING -- Problem for vertex iV = 39301, lGI value is aberrantly high
(lGI=44.2971)...
...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
'/data_august/Geo/freesurfer_OCD/subjects_converted/KuTo67/surf/tmp-mris_compute_lgi-lh.pial/lh.pial_lgi.asc'!
On the freesurfer weppage (http://freesurfer.net/fswiki/LGI), it is
supposed to be a known issue and they suggest to relaunch
*mris_compute_lgi *,
quote:
/In case of topological defects of the pial surface (run
mris_euler_number), mris_compute_lgi crashes. Usually, simply
relaunching mris_compute_lgi is sufficient to overcome this issue. /
I already tried that several times and i still get the same error . The
script always crashes at the same vertex. However when I check the
mris_euler_number for the subject's rh.pial it interestingly does not
show me any topological defect.
Has anybody encounter the same problem? or what should be a possible
solution?
Thanks a lot in advance for your answer.
Best
Georgiana
--
Oana Georgiana Rus
PhD Student
Neuroimaging Center TUM-NIC
Klinikum rechts der Isar
Technische Universität München
Einsteinstr.1
81675 München
Raum 5.8
Tel. 089 4140 7971
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