check if the whitematter in the file T1.mgz is around value 110.  if
not, then put some control points in the white matter in nu.mgz and
re-run recon-all.

n.

On Wed, 2009-10-07 at 15:34 -0400, Gonzalo Rojas wrote:
> Hi:
> 
>    I got the following error... How can I solve it ?...
> 
> recon-all.log
> -----------------------------------------------------------------
>   mri_watershed -T1 -brain_atlas 
> /usr/local/freesurfer/average/RB_all_withskull_2008-03-26.gca 
> transforms/talairach_with_skull.lta T1.mgz brainmask.auto.mgz
> 
> 
> Mode:          T1 normalized volume
> Mode:          Use the information of atlas (default parms, --help for 
> details)
> 
> *********************************************************
> The input file is T1.mgz
> The output file is brainmask.auto.mgz
> If this is incorrect, please exit with CTL-C
> 
> Weighting the input with atlas information before watershed
> 
> *************************WATERSHED**************************
> Sorting...
>        first estimation of the COG coord: x=125 y=122 z=99 r=84
>        first estimation of the main basin volume: 2562881 voxels
>        Looking for seedpoints
>          2 found in the cerebellum
>          16 found in the rest of the brain
>        global maximum in x=103, y=120, z=70, Imax=255
>        CSF=17, WM_intensity=110, WM_VARIANCE=5
>        WM_MIN=110, WM_HALF_MIN=110, WM_HALF_MAX=110, WM_MAX=110
>   preflooding height equal to 10 percent
> done
> Analyze
> 
>        main basin size=33359051 voxels, voxel volume =1.000
>                       = 33359051 mmm3 = 33359.051 cm3
> done
> PostAnalyze...Basin Prior
>   86 basins merged thanks to atlas
>        ***** 0 basin(s) merged in 1 iteration(s)
>        ***** 0 voxel(s) added to the main basin
> done
> Weighting the input with prior template
> 
> ****************TEMPLATE DEFORMATION****************
> 
>        second estimation of the COG coord: x=127,y=125, z=105, r=9959 
> iterations
>     GLOBAL      CSF_MIN=0, CSF_intensity=9, CSF_MAX=52 , nb = 22212
>    RIGHT_CER    CSF_MIN=0, CSF_intensity=5, CSF_MAX=22 , nb = 1368
>    LEFT_CER     CSF_MIN=0, CSF_intensity=9, CSF_MAX=26 , nb = 1242
>   RIGHT_BRAIN   CSF_MIN=0, CSF_intensity=9, CSF_MAX=56 , nb = 9603
>   LEFT_BRAIN    CSF_MIN=0, CSF_intensity=9, CSF_MAX=49 , nb = 9792
>      OTHER      CSF_MIN=0, CSF_intensity=33, CSF_MAX=47 , nb = 207
> mri_watershed Error:
>   GLOBAL region of the brain empty !
> Linux image 2.6.28-15-generic #49-Ubuntu SMP Tue Aug 18 18:40:08 UTC 
> 2009 i686 GNU/Linux
> 
> recon-all exited with ERRORS at Wed Oct  7 15:29:31 CLT 2009
> 
> 

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