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Activity Number:
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297
- SPEED: Food, Environment, Biomedical Imaging and Physical System Visualization/Learning, Part 1
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Type:
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Contributed
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Date/Time:
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Tuesday, July 30, 2019 : 8:30 AM to 10:20 AM
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Sponsor:
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Section on Statistics in Imaging
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Abstract #306690
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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 At Santa Barbara and U.Penn 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 invivo studies, and Voxel Graph tractography illustrations. We also present two new voxelwise 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 voxelwise white matter descriptors such as fractional anisotropy (FA).
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Authors who are presenting talks have a * after their name.
