Tcksample and SIFT2

1

Dear MRtrix community,

I am in the process of analyzing the streamlines that I generated using tcksample. However, I would like to apply sift2 to apply weightings to the streamline and remove the ones below certain threshold. I couldn’t find an option to include weights in tcksample. I’d appreciate any guidance you might have on this matter.

Thanks,
Parand

1 Like
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Hi Parand,

Looks like some confusion around what each command is responsible for:

… analyzing the streamlines that I generated using tcksample

tcksample can’t “generate” streamlines; it’s only responsible for sampling quantitative values along the trajectories of pre-calculated streamlines.

… and remove the ones below certain threshold

This is a very different operation to what tcksample does. See tckedit -minweight.

I couldn’t find an option to include weights in tcksample.

There’s no operation within tcksample that would either be modulated by the availability of streamline weights, or have any effect on the streamline weights.

Cheers
Rob