Those are giant defects. Check the inflated.nofix to see if the skull or 
cerebellum  is attached 



On Aug 19, 2011, at 11:38 AM, Catherine Wan <cyc...@gmail.com> wrote:

> Dear List, 
> 
> I've been encountering a series of error messages when I did recon-all on a 
> number of subjects, using Freesurfer v5.1
> 
> Below are the error messages for 3 different subjects (all with lesions). I 
> tried them using both dicom and nifti, and on various computers, but the same 
> messages appeared. 
> Any advice would be much appreciated. 
> 
> Many thanks!
> Catherine
> 
> 
> 
> SUBJECT 1
> 
> Correction of the Topology
> Finding true center and radius of Spherical Surface...done
> Surface centered at (0,0,0) with radius 100.0 in 15 iterations
> marking ambiguous vertices...
> 188852 ambiguous faces found in tessellation
> segmenting defects...
> 1 defects found, arbitrating ambiguous regions...
> analyzing neighboring defects...
> 1 defects to be corrected 
> 0 vertices coincident
> reading input surface 
> /mnt/nfs/hippo1/freesurfer5/freesurfer/subjects/Aphasia_MIT/DMAR_pre1_nii/surf/lh.qsphere.nofix...
> reading brain volume from brain...
> reading wm segmentation from wm...
> Computing Initial Surface Statistics
>       -face       loglikelihood: -10.1436  (-5.0718)
>       -vertex     loglikelihood: -8.7336  (-4.3668)
>       -normal dot loglikelihood: -3.6140  (-3.6140)
>       -quad curv  loglikelihood: -7.5212  (-3.7606)
>       Total Loglikelihood : -30.0124
> 
> CORRECTING DEFECT 0 (vertices=98583, convex hull=1425)
> Excessive topologic defect encountered: could not allocate 1019599903 edges 
> for retessellation
> Cannot allocate memory
> 
> 
> 
> 
> SUBJECT 2
> 
> mris_inflate ../surf/lh.smoothwm ../surf/lh.inflated 
> avg radius = 51.9 mm, total surface area = 58524 mm^2
> writing inflated surface to ../surf/lh.inflated
> writing sulcal depths to ../surf/lh.sulc
> step 060: RMS=0.039 (target=0.015)   
> inflation complete.
> inflation took 0.3 minutes
> 
>  mris_curvature -thresh .999 -n -a 5 -w -distances 10 10 ../surf/lh.inflated 
> 
> normalizing curvature values.
> averaging curvature patterns 5 times.
> sampling 10 neighbors out to a distance of 10 mm
> Segmentation fault
> 
> 
> 
> SUBJECT 3 (stuck on this step for > 48 hrs)
> 
> 
> CORRECTING DEFECT 0 (vertices=130, convex hull=179)
> After retessellation of defect 0, euler #=-30 (62919,184624,121675) : 
> difference with theory (-51) = -21 
> 
> CORRECTING DEFECT 1 (vertices=46, convex hull=64)
> After retessellation of defect 1, euler #=-29 (62936,184700,121735) : 
> difference with theory (-50) = -21 
> 
> CORRECTING DEFECT 2 (vertices=75, convex hull=105)
> After retessellation of defect 2, euler #=-28 (62974,184859,121857) : 
> difference with theory (-49) = -21 
> 
> CORRECTING DEFECT 3 (vertices=54486, convex hull=3968)
> 
> 
> _______________________________________________
> Freesurfer mailing list
> Freesurfer@nmr.mgh.harvard.edu
> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer


The information in this e-mail is intended only for the person to whom it is
addressed. If you believe this e-mail was sent to you in error and the e-mail
contains patient information, please contact the Partners Compliance HelpLine at
http://www.partners.org/complianceline . If the e-mail was sent to you in error
but does not contain patient information, please contact the sender and properly
dispose of the e-mail.

Reply via email to