I have DTI data for two groups; and I wish to compare the FA differences
in WM between groups.
I am planning to do the following:
1. After normalising the bo and the DWI images, the FA map will be
generated for both groups.
2. In order to compare FA maps between groups with in WM I ahave copmuted
a product FA.* WM (WM is segmented from high res anatomical and is in same
space as the FA maps).
3. FA.*WM will be smoothed.
4. The smoothed product will then be used to do two sample t-test under
basic models in SPM2.
Is this method correct ? or am I missing anything.
Thanks in advance
Anusha
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