Britni,

Does the brainmask.mgz file look ok? Compare it to the brainmask.mgz file included in the sample subject 'bert' included in the freesurfer/subjects directory. Same for the aseg.mgz and brain.mgz volumes.

Nick

On Mon, 2007-09-10 at 12:34 -0400, Britni Crocker wrote:

after autorecon2, I sometimes get this error:

preserving editing changes in output volume... doing initial intensity segmentation... using local statistics to label ambiguous voxels... computing class statistics for intensity windows... WM: nan +- nan [100000.0 --> -100000.0] GM: nan +- nan [100000.0 --> -100000.0] mri_segment: class statistics not finite - check input volume! Linux theta.cis.jhu.edu 2.6.9-55.0.2.ELsmp #1 SMP Tue Jun 26 14:30:58 EDT 2007 i686 i686 i386 GNU/Linux recon-all exited with ERRORS at Wed Sep 5 15:49:00 EDT 2007

how do i fix this?

britni

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