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Related Experiment Video

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TractoFlow: A robust, efficient and reproducible diffusion MRI pipeline leveraging Nextflow & Singularity.

Guillaume Theaud1, Jean-Christophe Houde1, Arnaud Boré2

  • 1Sherbrooke Connectivity Imaging Laboratory (SCIL), Université de Sherbrooke, Canada; Imeka Solutions Inc, Sherbrooke, Canada.

Neuroimage
|May 25, 2020
PubMed
Summary

TractoFlow is a new automated pipeline that ensures reproducible diffusion MRI tractography. This tool enhances brain connectivity mapping by providing efficient and user-friendly processing of diffusion weighted images.

Keywords:
BIDSDiffusion MRINextflowPipelineReproducibilitySingularityTractography

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Area of Science:

  • Neuroimaging
  • Computational Neuroscience
  • Biomedical Engineering

Background:

  • Diffusion MRI tractography involves numerous processing steps, making reproducibility challenging.
  • Inconsistent parameter control, thread management, and random seeds lead to non-reproducible tractography results.
  • Existing pipelines often lack user-friendliness and standardization.

Purpose of the Study:

  • To develop an automated and reproducible diffusion MRI tractography processing pipeline.
  • To ensure consistency and reliability in structural brain connectivity mapping.
  • To provide an accessible tool for researchers with varying technical expertise.

Main Methods:

  • Developed TractoFlow, a fully automated pipeline from raw diffusion weighted images to tractography.
  • Integrated Nextflow and Singularity engines for robust pipeline execution.
  • Supported the Brain Imaging Data Structure (BIDS) format for standardized input.
  • Included processing for diffusion tensor imaging and fiber orientation distribution function measures.

Main Results:

  • TractoFlow demonstrated high efficiency and reproducibility (98-100%) across three independent databases.
  • The pipeline is user-friendly, requiring minimal technical expertise and installation.
  • Fully automated processing from raw diffusion weighted images to comprehensive tractography outputs.

Conclusions:

  • TractoFlow significantly improves the reproducibility and reliability of diffusion MRI tractography.
  • The pipeline facilitates advanced structural brain connectivity mapping.
  • TractoFlow is a valuable, publicly available resource for the neuroimaging research community.