Hi ,
I am running through the TBSS processing stream .When creating FA images from your diffusion study data ,a step is to create a brain mask by running bet on one of the B=0 (no diffusion weighting) images . I use the command "fslroi data nodif 0 1 " to extract b=0 image .
As far as I know , b=0 image is used as mask when extracting brain .Could you explain it ? Why is b=0 image chose as mask ? How does it works? What's is its function ?
Regards .
Shi Xin-Fa.
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