Dear All:
I would like to know if it is a good idea to smooth DTI raw images
before creating FA and other maps.
The first attached FA map was created without smoothing the raw images
and it is very "noisy". The second attached FA map was created after
smoothing the raw images by using: fslmaths input -s 3 output.
Relative to the first FA map, the second map appears much more "smooth".
Best Regards
Jiansong
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Jiansong Xu, M.D., Ph.D.
Dept. of Psychiatry
Yale Medical School
2 Church St., Suite 215
New Haven, CT 06519
Tel: 203-785-5306
Fax: 203-737-3591
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