Dear FreeSurfer experts,

I have used dt_recon for tensor fitting of my diffusion data. I used the following syntax:

dt_recon --i dwi.nii.gz --b data.bval data.bvec --s subject_ID --o /DTI --no-reg --no-tal

When I inspect the FA data, the tensor fitting itself looks good, but the data is not skull stripped:

FA map:

mask:

I was wondering if I did something wrong and how I should fix this.

Thanks for your help.

Best,

Vincent