Hi Alex,
the 2mm slice thickness could be trouble. Usually we don't recommend trying to recon cortical models with any dimension greater than 1.5mm. Why do anisotropic? Can you describe the rest of the acquisition parameters?
Bruce
On Tue, 13 Sep 2005, Fornito, Alexander wrote:
HI, I've got some 3T SPGR data (512 x 512 x 104, vox dim. 0.488 x 0.488 x 2). I seem to be able to convert them to .mgz ok, but when I run mri_watershed I get an error saying "main radius too high" (output below). Any ideas as to what's happening? Thanks, Alex
mri_watershed 1001670.mgz 1001670_brain.mgz
The input file is 1001670.mgz The output file is 1001670_brain.mgz If this is incorrect, please exit quickly the program (Ctl-C)
*************************WATERSHED************************** preflooding height equal to 25 percent Sorting... first estimation of the COG coord: x=253 y=50 z=235 r=135 first estimation of the main basin volume: 10415397 voxels Error main radius too high
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