Abstract #1031
Imposing label priors in global tractography can resolve crossing fibre ambiguities
Daan Christiaens 1,2 , Frederik Maes 1,2 , Stefan Sunaert 2,3 , and Paul Suetens 1,2
1
Electrical Engineering, KU Leuven, Leuven,
Vlaams-Brabant, Belgium,
2
Medical
Imaging Research Center, UZ Leuven, Leuven,
Vlaams-Brabant, Belgium,
3
Translational MRI,
KU Leuven, Leuven, Vlaams-Brabant, Belgium
Ambiguity in the local diffusion profile is an important
cause of spurious fibre tracks in DWI. We propose to use
bundle labels as an additional prior in global
tractography to overcome this issue. We have evaluated
such label prior in a Tractometer study, and
demonstrated its effect on real data using the Catani
atlases of 30 white matter tracts. Results show an
important decrease of invalid connections and spurious
tracks. Additionally, a probabilistic segmentation of
the fibre bundles is obtained.
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