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Activity Number:
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408
- SPAAC Poster Competition
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Type:
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Topic Contributed
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Date/Time:
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Tuesday, July 31, 2018 : 2:00 PM to 3:50 PM
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Sponsor:
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Scientific and Public Affairs Advisory Committee
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Abstract #330244
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Title:
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Analytic White Matter Tractography and Compositional Distance-Based Summarization of White Matter Brain Structures
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Author(s):
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Wendy Meiring* and Matthew Cieslak and Tegan Brennan and Subhash Suri and Scott T. Grafton
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Companies:
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University of California, Santa Barbara and UCSB and UCSB and UCSB and UCSB
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Keywords:
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Diffusion MRI;
White matter connectivity;
Analytic tractography;
Compositional Data Analysis
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Abstract:
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We present an analytic (simulation free) method for calculating white matter transition probabilities between neighboring brain voxels based on DSI structural MRI, including phantom evaluation, human in-vivo studies, and Voxel Graph tractography illustrations. We also present two new voxel-wise univariate summary measures based on compositional data distances to describe features in white matter, including highlighting complex brain regions with splitting/fanning/kissing fibers. Our new summaries provide valuable additional insights beyond commonly used voxel-wise white matter descriptors such as fractional anisotropy (FA).
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Authors who are presenting talks have a * after their name.
