Hello all,
I have masks that have been generated from T1-volumes that I'd like to
register to the DTI-domain to measure FA and ADC in the regions of interest
defined by the masks (I'd also like to track fibers that pass through
ROI's). There have been some threads on the forum earlier on this subject.
From what I could gather, the best way to do this is to use FLIRT to
register the FA image to the T1 image, and not the other way around, due to
the higher resolution of the T1 image. The affine registration does not give
as good results as I had hoped for, so I'd like to try FNIRT as well. I read
that FNIRT was not really intended for this, but it still worked for some
images. What I'd like to know: is there any consensus on how to use FNIRT
for this purpose, or do I just have to try out different settings and
visually evaluate the results? Do I specify some configuration file, or go
with as few options as possible? Does anyone have experience with this?
P.S. I'm completely new to FSL, so please let me know if I have
misunderstood something crucial.
Thanks,
Martin Ystad
University of Bergen,
Norway.
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