"A diffusion-weighted image was rigidly transformed to T1 images and each T1 image was non linearly transformed to MNI space"

Well, I have done it, but then it follows:  The concatenation of these two transformations was used to transform FA images to MNI space?!! How??

- Second point it says:

....the deep white matter regions from the ICBM-DTI-81 white matter labels atlas were removed from the resulting mask?! How?? I figure that I have to binarize and set to 0 the labels from ICBM_DTI_81 atlas....but I am unsure about if this is correct....