Cited by 114Advanced Neuroimaging Techniques and ApplicationsFunctional Brain Connectivity StudiesAdvanced MRI Techniques and Applications

Limitations and requirements of diffusion tensor fiber tracking: an assessment using simulations

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Tournier, J.‐D., Calamante, F., King, M.D., Gadian, D.G., Connelly, A.·2002·Magnetic Resonance in Medicine

Abstract

Diffusion tensor fiber tracking potentially can give information about in vivo brain connectivity. However, this technique is difficult to validate due to the lack of a gold standard. Fiber tracking reliability will depend on the quality of the data and on the robustness of the algorithms used. Information about the effects of various anatomical and image acquisition parameters on fiber tracking reliability may be used in the design of imaging sequences and of tracking algorithms. In this study, tracking was performed on two different simulated models to study the effects on tracking quality of SNR, anisotropy, curvature, fiber cross‐section, background anisotropy, step size, and interpolation. Tracking was also performed on volunteer data to assess the relevance of the simulations to real data. Our results show that, in general, tracking with high SNR and high anisotropy using interpolation and a low step size gives the most reliable results. Partial volume effects are shown to have a detrimental effect when the background is anisotropic and when tracking narrow fibers. The results derived from real data show similar trends and thus support the findings of the simulations. These simulations may therefore help to determine which structures can be tracked for a given image quality. Magn Reson Med 47:701–708, 2002. © 2002 Wiley‐Liss, Inc.

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  • First-order streamline tractography in curved bundles tends to underestimate curvature, producing erroneous trajectories.

    “Possibly the earliest bias established for dMRI tractography was the fact that if the streamline algorithm simply takes a step of finite size in the direction of the local fiber orientation at the current vertex (a so-called “first-order” method), streamlines in curved bundles will tend to under-estimate the curvature, resulting in erroneous trajectories (Tournier et al., 2002).”

    From Quantitative mapping of the brain’s structural connectivity using diffusion MRI tractography: A review (2022) · cites this paper as Tournier et al., 2002

    The Tracking Algorithm section describes finite steps taken in the local major-eigenvector direction. Model A reports that larger steps increase endpoint offset and that tracks can depart systematically from an ideal curved path, especially without interpolation. The copy does not establish the claimed direction of the bias—that these tracks tend to underestimate curvature. (LLM, conf=0.85)

    Experimental — accuracy not yet measured

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Research works printed but not linked: 14

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Authors
Tournier, J. ‐., Calamante, F., King, M. D., Gadian, D. G., & Connelly, A.
Affiliations
  • Great Ormond Street Hospital (GB)
  • University College London (GB)
Corresponding author
Tournier, J.‐D.
Venue
Magnetic Resonance in Medicine
Publisher
Wiley
Published
2002-03-28
Volume
47
Issue
4
Pages
701-708
ISSN
  • 0740-3194 (ISSN-L)
  • 1522-2594
OpenAlex
W2047050738
Cited by
114
References
0
Citations by year
2025: 2 · 2024: 1 · 2023: 1 · 2022: 2 · 2021: 4 · 2020: 4 · 2018: 5 · 2017: 5 · 2016: 7 · 2015: 4 · 2014: 7 · 2013: 7 · 2012: 9
FWCI
5.47
Type
journal article
Language
en
Open access
Locations
  • Magnetic Resonance in Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
  • Research Portal (King's College London) (submittedVersion)
Funders
  • Wellcome Trust
  • Great Ormond Street Hospital for Children
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced MRI Techniques and Applications
Keywords
signal-to-noise ratio, anisotropy, fiber curvature, partial volume effect, step size, interpolation, tracking algorithm, white matter connectivity, image acquisition parameters
MeSH terms
Algorithms, Brain, Computer Simulation, Diffusion, Humans, Magnetic Resonance Imaging, Anisotropy

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