Cited by 228Advanced Neuroimaging Techniques and ApplicationsFunctional Brain Connectivity StudiesMedical Image Segmentation Techniques

Tractometer: Towards validation of tractography pipelines

Côté, Marc-Alexandre, Girard, Gabriel, Boré, Arnaud, Garyfallidis, Eleftherios, Houde, Jean-Christophe, Descoteaux, Maxime·2013·Medical Image Analysis

Abstract

We have developed the Tractometer: an online evaluation and validation system for tractography processing pipelines. One can now evaluate the results of more than 57,000 fiber tracking outputs using different acquisition settings (b-value, averaging), different local estimation techniques (tensor, q-ball, spherical deconvolution) and different tracking parameters (masking, seeding, maximum curvature, step size). At this stage, the system is solely based on a revised FiberCup analysis, but we hope that the community will get involved and provide us with new phantoms, new algorithms, third party libraries and new geometrical metrics, to name a few. We believe that the new connectivity analysis and tractography characteristics proposed can highlight limits of the algorithms and contribute in solving open questions in fiber tracking: from raw data to connectivity analysis. Overall, we show that (i) averaging improves quality of tractography, (ii) sharp angular ODF profiles helps tractography, (iii) seeding and multi-seeding has a large impact on tractography outputs and must be used with care, and (iv) deterministic tractography produces less invalid tracts which leads to better connectivity results than probabilistic tractography.

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Crossref · 10.1016/j.media.2013.03.009

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  • Previous studies have reported high invalid-connection ratios under simplified conditions.

    “Previous studies have reported high invalid-connection ratios under simplified conditions26, 38”
  • The Tractometer definition of a VC is extremely restrictive for current tractography algorithms, as it requires streamlines not to exit the area of the ground truth bundle at any point and to terminate exactly within the endpoint region that is defined by the dilated ground truth fiber endpoints.

    “The Tractometer definition of a VC is extremely restrictive for current tractography algorithms, as it requires streamlines (1) not to exit the area of the ground truth bundle at any point and (2) to terminate exactly within the endpoint region that is defined by the dilated ground truth fiber endpoints (Supplementary Figs. 8, 9)38.”

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Authors
Côté, M.-A., Girard, G., Boré, A., Garyfallidis, E., Houde, J.-C., & Descoteaux, M.
Affiliations
Université de Sherbrooke (CA)
Corresponding author
Descoteaux, Maxime
Venue
Medical Image Analysis
Publisher
Elsevier BV
Published
2013-10
Volume
17
Issue
7
Pages
844-857
ISSN
1361-8415 (ISSN-L)
OpenAlex
W2013160622
Cited by
228
References
66
Citations by year
2026: 7 · 2025: 19 · 2024: 17 · 2023: 9 · 2022: 17 · 2021: 25 · 2020: 21 · 2019: 21 · 2018: 23 · 2017: 24 · 2016: 18 · 2015: 14 · 2014: 11 · 2013: 2
FWCI
11.62
Type
journal article
Language
en
Open access
closed
Locations
  • Medical Image Analysis (publishedVersion)
  • PubMed (publishedVersion)
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
tractography, pipeline validation, connectivity analysis, diffusion MRI, spherical deconvolution, Q-ball imaging, seeding strategies, b-value, phantom evaluation
MeSH terms
Algorithms, Artificial Intelligence, Brain, Humans, Image Enhancement, Image Interpretation, Computer-Assisted, Nerve Fibers, Myelinated, Online Systems, Pattern Recognition, Automated, Sensitivity and Specificity, Software, Reproducibility of Results, Internet, Imaging, Three-Dimensional, Diffusion Tensor Imaging

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