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Abstract #4529

Orientation-dependent rendering of diffusion fiber tractography streamlines for improved visualization of complex tissue organization

Chantal M.W. Tax 1 , Marijn van Stralen 1 , Max A. Viergever 1 , Nick Ramsey 2,3 , and Alexander Leemans 1

1 Image Sciences Institute, University Medical Center Utrecht, Utrecht, Utrecht, Netherlands, 2 Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, Utrecht, Utrecht, Netherlands, 3 Department of Neurology and Neurosurgery, University Medical Center Utrecht, Utrecht, Utrecht, Netherlands

The complex nature of diffusion MRI data has triggered the development of new approaches to visualize the architectural organization of diffusion MRI trajectories, which is becoming increasingly important with emerging human connectome studies and the growing interest of applying diffusion MRI tractography in clinical applications. We propose a visualization approach that interactively and selectively visualizes these tracts based on their local orientation, by applying an orientation-dependent transparency rendering to the fiber pathways. This greatly improves the visualization and exploration of the 3D architectural organization of pathways and the underlying tissue configurations that otherwise would be largely covered by other pathways.

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