Dear FSL experts,
I have some questions about TBSS for which I have not found answers in the
mailing list.
1. Which is the influence of the number of directions on the quality of TBSS?
I have a set of DTI images with B0=800 and number of directions=16 and
another set with the same B0 and 32 directions.
I guess that probabilistic tracking is not reliable with only 16
directions, but what about TBSS? Can images of the two groups be compared
with TBSS in some way?
2. During the TBSS procedure there is a registration to the standard image
with resultion 1mm*1mm*1mm. This result in a very long time when
performing statistics with randomise. My original scanning resolution is
2mm. Do you think that registration of the skeletonised images and mask to
a 2mm resolution would impair the statistical analyses? Or is it a
feasable approach?
Thank you for your help!
Angela
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