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Related Experiment Video

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Acquisition of Resting-State Functional Magnetic Resonance Imaging Data in the Rat
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A consensus protocol for functional connectivity analysis in the rat brain.

Joanes Grandjean1,2, Gabriel Desrosiers-Gregoire3,4, Cynthia Anckaerts5,6

  • 1Donders Institute for Brain, Behaviour, and Cognition, Radboud University, Nijmegen, The Netherlands. joanes.grandjean@radboudumc.nl.

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|March 27, 2023
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Summary

Researchers developed StandardRat, a consensus functional magnetic resonance imaging protocol for rats, improving the reliability of brain connectivity studies across multiple research centers. This standardized approach enhances data comparability in neuroscience research.

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Area of Science:

  • Neuroscience
  • Neuroimaging
  • Animal Models

Background:

  • Task-free functional connectivity in animal models is crucial for understanding brain networks under controlled conditions.
  • Current variations in animal imaging protocols hinder data comparison and integration across studies.

Purpose of the Study:

  • To introduce StandardRat, a consensus functional magnetic resonance imaging (fMRI) acquisition protocol for rats.
  • To establish a reproducible analysis pipeline for rat fMRI data.
  • To enhance the comparability and reliability of functional connectivity findings in rat models.

Main Methods:

  • Aggregated 65 functional imaging datasets from 46 centers to inform protocol development.
  • Developed and tested a consensus rat fMRI acquisition protocol (StandardRat) across 20 centers.
  • Created a reproducible data analysis pipeline for diverse rat fMRI protocols.

Main Results:

  • The standardized protocol demonstrated enhanced detection of biologically plausible functional connectivity patterns.
  • The developed pipeline identified experimental and processing parameters for robust functional connectivity detection.
  • Significant improvement in the consistency of functional connectivity results across centers using the StandardRat protocol.

Conclusions:

  • StandardRat provides a standardized framework for rat fMRI acquisition, promoting interoperability.
  • The shared protocol and pipeline facilitate cooperation and data integration in rodent neuroscience.
  • This initiative aims to advance the understanding of brain connectivity by enabling robust cross-center comparisons.