Segment tracts from TDI



I would greatly appreciate your advice on how to segment tracts from a whole brain TDI, as I have not been able to find an answer in the documentation or forum.

My proposed solution (which is probably wrong) is to perform whole brain TDI after SIFT, extract tracts of interest from the SIFTed tracts, perform TDI on the extracted tracts, threshold them (suggestions on this threshold?) and use the resulting binary mask to mask the whole brain TDI and apply threshold (again, suggestions?).

Thanks for any help on this.