Cited by 1,216Advanced Neuroimaging Techniques and ApplicationsFunctional Brain Connectivity StudiesMedical Image Segmentation Techniques

Anatomically-constrained tractography: improved diffusion MRI streamlines tractography through effective use of anatomical information

Smith, Robert E., Tournier, Jacques-Donald, Calamante, Fernando, Connelly, Alan·2012·NeuroImage

Abstract

Diffusion MRI streamlines tractography suffers from a number of inherent limitations, one of which is the accurate determination of when streamlines should be terminated. Use of an accurate streamlines propagation mask from segmentation of an anatomical image confines the streamlines to the volume of the brain white matter, but does not take full advantage of all of the information available from such an image. We present a modular addition to streamlines tractography, which makes more effective use of the information available from anatomical image segmentation, and the known properties of the neuronal axons being reconstructed, to apply biologically realistic priors to the streamlines generated; we refer to this as "Anatomically-Constrained Tractography". Results indicate that some of the known false positives associated with tractography algorithms are prevented, such that the biological accuracy of the reconstructions should be improved, provided that state-of-the-art streamlines tractography methods are used.

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Crossref · 10.1016/j.neuroimage.2012.06.005

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3 of 3 references verified0 citation errors · 0 not checkable

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  • Common termination criteria based on heuristic thresholds are not adequate to ensure biologically plausible streamline generation.

    “These common termination criteria are therefore not adequate to ensure biologically plausible streamline generation”
  • Anatomically constrained tractography and similar methods constrain streamline propagation and termination using knowledge of where neuronal fibers locate, preventing streamlines that cannot represent biological connectivity.

    “the Anatomically-Constrained Tractography (ACT) framework (Smith et al., 2012) and similar methods (Girard and Descoteaux, 2012; Lemkaddem et al., 2014; Yeh et al., 2017) ensure that both streamline propagation and termination are constrained based on knowledge of where neuronal fibers locate, e.g., connecting between gray matter areas via the white matter.”

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Authors
Smith, R. E., Tournier, J.-D., Calamante, F., & Connelly, A.
Affiliations
The University of Melbourne (AU)
Corresponding author
Smith, Robert E.
Venue
NeuroImage
Publisher
Elsevier BV
Published
2012-09
Volume
62
Issue
3
Pages
1924-1938
ISSN
1053-8119 (ISSN-L)
OpenAlex
W2094435366
Cited by
1,216
References
3
Citations by year
2026: 128 · 2025: 160 · 2024: 152 · 2023: 122 · 2022: 152 · 2021: 144 · 2020: 127 · 2019: 67 · 2018: 55 · 2017: 43 · 2016: 24 · 2015: 21 · 2014: 12 · 2013: 8 · 2012: 1
FWCI
10.14
Type
journal article
Language
en
Open access
closed
Locations
  • NeuroImage (publishedVersion)
  • PubMed (publishedVersion)
  • Research Portal (King's College London) (submittedVersion)
Funders
  • National Health and Medical Research Council (NHMRC) of Australia
  • the Australian Research Council
  • Austin Health
  • Dowd Foundation Research Scholarship for Neuroscience
  • Victorian Government
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Medical Image Segmentation Techniques
Keywords
biological priors, white matter, connectome reconstruction, axon reconstruction
MeSH terms
Brain, Brain Mapping, Humans, Image Interpretation, Computer-Assisted, Diffusion Tensor Imaging

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