Hi,
I am trying to realign FA-maps of one subject, who was scanned at two
different time points. After running BET I am using FLIRT for realigning
(rigid body transform, 6D OF) the B0 images (extracted from the DTI data
set) of the second measurement to the B0 images of the first measurement
and as secondary images to apply the transform to I take the FA maps of
the second measurement.
The realignment works fine, but the FA-map of the second measuresment
(the realigned one) was "smoothed" during the process. Since the first
FA-map was not processed, the two maps differ in terms of their
"resolution / smootheness".
Is there a way either to turn off the "smoothing" during the realignment
or to smoothe the first FA-map (which was not transformed) in a similar
way? (I do not want to realign all images to a "standard brain" due to
gross pathology)
Any help is appreciated,
Yours , Oliver
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