3D modeling and segmentation of diffusion weighted MRI data

Leonid Zhukov; Ken Museth; David E. Breen; Ross T. Whitaker

doi:10.1117/12.428081

28 May 2001 3D modeling and segmentation of diffusion weighted MRI data

Leonid Zhukov, Ken Museth, David E. Breen, Ross T. Whitaker

Proceedings Volume 4319, Medical Imaging 2001: Visualization, Display, and Image-Guided Procedures; (2001) https://doi.org/10.1117/12.428081
Event: Medical Imaging 2001, 2001, San Diego, CA, United States

Abstract

Diffusion weighted magnetic resonance imaging (DW MRI) is a technique that measures the diffusion properties of water molecules to produce a tensor-valued volume dataset. Because water molecules can diffuse more easily along fiber tracts, for example in the brain, rather than across them, diffusion is anisotropic and can be used for segmentation. Segmentation requires the identification of regions with different diffusion properties. In this paper we propose a new set of rotationally invariant diffusion measures which may be used to map the tensor data into a scalar representation. Our invariants may be rapidly computed because they do not require the calculation of eigenvalues. We use these invariants to analyze a 3D DW MRI scan of a human head and build geometric models corresponding to isotropic and anisotropic regions. We then utilize the models to perform quantitative analysis of these regions, for example calculating their surface area and volume.

Citation Download Citation

Leonid Zhukov, Ken Museth, David E. Breen, and Ross T. Whitaker "3D modeling and segmentation of diffusion weighted MRI data", Proc. SPIE 4319, Medical Imaging 2001: Visualization, Display, and Image-Guided Procedures, (28 May 2001); https://doi.org/10.1117/12.428081

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