Binyam,

The recon-all.log indicates that mri_ca_register hit a segmentation fault, which is bad. Can you send me the subject data so that I can try to recreate this segfault in a debugger? You can upload to me via the filedrop:

https://www.nmr.mgh.harvard.edu/facility/filedrop/index.html

In the meantime, also look at the brainmask.mgz file with tkmedit and confirm that it is skull-stripped and that the cerebellum is attached. Also check the talairach registration with tkregister2.

Nick

On Tue, 2007-02-06 at 10:39 -0600, Binyam Nardos wrote:

hi all, I just ran autorecon2 on one of our subjects (for the second time, after getting a similar error, i.e. ERROR: mri_ca_register with non- zero status. I just rerun recon-all with -autorecon2 without removing/changing anything produced by the previous autorecon2). Is there any logical place to start to fix the problem or do I have to rerun mri_ca_register as shown below:

mri_ca_register -align -nobigventricles -mask brainmask.mgz -T transforms/talairach.lta norm.mgz /usr/local/freesurfer//average/RB_all_2006-02-15.gca transforms/talairach.m3z

I have attached the recon-all log for reference. Please advise,

thanks, Binyam

Binyam Nardos Cognitive Rehabilitation Research Group Washington University School of Medicine Box # 8505 4444 Forest Park Blvd St. Louis, MO 63108 Office: (314) 454-7795 Fax: (314) 286-1601

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