I keep getting this error when trying to skullstrip a scan...

*************************WATERSHED************************** preflooding height equal to 25 percent Sorting... T1-weighted MRI image modification of the preflooding height to 15 percent Count how many 110 voxels are present : 53463

Find the largest 110-component... heap usage = 133076 Kbytes. removing small segments (less than 1 percent of maxarea).done And identify it as the main brain basin...done Main component: 46289 voxels first estimation of the COG coord: x=124 y=107 z=123 r=86 first estimation of the main basin volume: 2722274 voxels

******************************************* *********************************************** *********************************************** White matter intensity 4 is lower than CSF intensity 24. Please examine input images. Will terminate ... *********************************************** *********************************************** ***********************************************

********************************************************** MRIstripSkull failed. ************************************************************ Linux localhost.localdomain 2.6.9-5.ELsmp #1 SMP Wed Jan 5 19:29:47 EST 2005 x86_64 x86_64 x86_64 GNU/Linux

recon-all exited with ERRORS at Mon Jul 31 11:25:35 EDT 2006

Attached are some slices from my T1 images, numbered according to coronal slice number. I noted that they do look a little odd/different than previous scans. Suggestions?

Thanks Dave