Chapter 7 of the MRtrix tutorial of Andy's Brain Book: [ Ссылка ]
Table of Contents:
0:00 Overview of tractography
0:44 Creating streamlines with tckgen
2:30 Extracting a subset of streamlines with tckedit and viewing the tracks in mrview
3:20 Sifting the tracks with tcksift2
Commands Used:
Creating streamlines with tckgen:
tckgen -act 5tt_coreg.mif -backtrack -seed_gmwmi gmwmSeed_coreg.mif -nthreads 8 -maxlength 250 -cutoff 0.06 -select 10000000 wmfod_norm.mif tracks_10M.tck
Extracting a subset of tracks:
tckedit tracks_10M.tck -number 200k smallerTracks_200k.tck
Viewing the tracks in mrview:
mrview sub-02_den_preproc_unbiased.mif -tractography.load smallerTracks_200k.tck
Sifting the tracks with tcksift2:
tcksift2 -act 5tt_coreg.mif -out_mu sift_mu.txt -out_coeffs sift_coeffs.txt -nthreads 8 tracks_10M.tck wmfod_norm.mif sift_1M.txt
