honestly, it’s quite possible that the deterministic tracker has issues with some datasets, it’s not well tested and I wouldn’t advise to use it at all (will remove it from Lead-DBS at some point). It’s real diffusion tensor imaging (i.e. with the tensor model) and that’s quite outdated.
The Gibbstracker sometimes takes >1 day but should not take 5 days (except it’s a really huge dataset or something similar). Does it still produce fibers at all? There should be a window that opens which should show you progress. If that’s not the case (i.e. no new window popped up), please abort Matlab and paste the error code here (i.e. where Matlab was hung when you aborted).
Also, there should be a third option which is to use DSI studio under the hood (it’s referred to as generalized Q-imaging (by Fang-Cheng Yeh)). It’s an extremely fast and also modern fiber tracking method which should work on all datasets (i.e. single- or multishell). Can definitely recommend that method – but also can recommend the Gibbstracker (which takes ~4-8 hrs. for one subject on a modern computer).
Also, please use the currentmost version of Lead-DBS since we fixed some fibertracking related things in the recent past.
Let me know if that helps!