Hi Emily - Depends on what you're doing. If you're doing an ROI-based or tractography-based analysis, where you extract average FA in a part of white matter, there is no need to warp. If you're doing a voxel-based analysis, obviously all the subjects need to be in a common space to compare their FA values voxel-by-voxel.
a.y
On Tue, 1 Jul 2014, ebelleau@uwm.edu wrote:
Hello,
I was wondering if it is better to keep the FA results from a DTI analysis in diffusion space for group analysis or if you should warp them into standard space as you would typically do with functional MRI data.
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