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Performance evaluation of anisotropic diffusion simulation based tractography on phantom images

Published: 23 March 2007 Publication History

Abstract

White matter tractography using diffusion tensor MR images is a promising method for estimating the pathways of white matter tracts in the human brain. The success of this method ultimately depends upon the accuracy of the white matter tractography algorithms. In this study, a central database of simulated common fiber tract trajectories was used to investigate the impact of SNR, tensor anisotropy, and diffusion tensor encoding directions on the accuracy of our fiber tracking method. The accuracy was assessed in six kinds of tracts and tract geometrics with divergence properties. In general the tract dispersion increases with distance and decreases with SNR and anisotropy. The tract orientation with respect to the encoding scheme also influences tract dispersion. Divergent tract geometries enhance tract dispersion, whereas convergent tract geometries reduce dispersion.

References

[1]
Lazar, M., and Alexander, A. L. An error analysis of white matter tractography methods: synthetic diffusion field simulations. NeuroImage, 20:1140--1153, 2003.
[2]
Lazar, M., et al. White matter tractography using diffusion tensor deflection. Human Brain Mapping, 18:306--321, 2003.
[3]
Kang, N., et al. White matter fiber tractography via anisotropic diffusion simulation in the human brain, IEEE Transaction on Medical Imaging, 24:1127--1137, 2005.

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  • (2009)A 3D Vector-Additive Iterative Solver for the Anisotropic Inhomogeneous Poisson Equation in the Forward EEG problemProceedings of the 9th International Conference on Computational Science: Part I10.1007/978-3-642-01970-8_50(511-520)Online publication date: 20-May-2009

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  1. Performance evaluation of anisotropic diffusion simulation based tractography on phantom images

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    cover image ACM Conferences
    ACMSE '07: Proceedings of the 45th annual ACM Southeast Conference
    March 2007
    574 pages
    ISBN:9781595936295
    DOI:10.1145/1233341
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    New York, NY, United States

    Publication History

    Published: 23 March 2007

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    Author Tags

    1. diffusion simulation based tractography (DST)
    2. diffusion tensor magnetic resonance imaging (DT-MRI)
    3. phantom images for simulating tractography errors (PISTE)

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    ACM SE07
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    ACM SE07: ACM Southeast Regional Conference
    March 23 - 24, 2007
    North Carolina, Winston-Salem

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    ACMSE '07 Paper Acceptance Rate 81 of 137 submissions, 59%;
    Overall Acceptance Rate 502 of 1,023 submissions, 49%

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    • (2009)A 3D Vector-Additive Iterative Solver for the Anisotropic Inhomogeneous Poisson Equation in the Forward EEG problemProceedings of the 9th International Conference on Computational Science: Part I10.1007/978-3-642-01970-8_50(511-520)Online publication date: 20-May-2009

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