Abstract #2668
A semi-local tractography approach using neighborhood information
Helen Schomburg 1 , Thorsten Hohage 1 , and Christoph Rgge 1
1
Institute for Numerical and Applied
Mathematics, University of Gttingen, Gttingen, Germany
We present an approach for semi-local fiber tractography
on HARDI data extending local tractography by including
diffusion information of neighboring regions to reduce
accumulation of noise. Considering the neighborhood
located behind the current path position we obtain a
guiding direction from the previously tracked path.
Then, the region in front is explored by determining a
set of candidate directions. In addition, we take into
account right and left neighbors to observe the position
on the fiber bundle perpendicular to the stepping
direction and shift the fiber path point toward the
center if necessary. Tests are performed on diffusion
phantom data.
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