[MINC-users] nu_correct & masking

[Najmeh Khalili M.]

>
> My feeling is that (2) is better.  The more data you give N3 to smooth

Some time ago, I tested the effect of performing NU-correct with and
without a brain mask, and as far as I could tell (and since I was dealing
with pahological tissue, I "could" tell) masking improved the image
processing stages that followed N3! So I would suggest option 2 as well.

Najma

> >
> > 2. A 'filled' brain mask - ie includes the CSF in the sulcal
> >     and ventricular spaces.
> >
> > My question is, which mask is more effective? Intuitively
> > I thought that the CSF mask would be better, as it gives 3
> > classes in the histogram, which gives N3 3 histogram peaks
> > to optimize over.
> >
> > Thanks in advance
> > Richard
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> >
>
>
> --
> Andrew Janke      (a.janke@gmail.com || www.cmr.uq.edu.au/~rotor)
> Canada->Montreal                                   Cell: +1 (514) 924 2012
>
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