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Local Extraction of Extra-Axial CSF from structural MRI.

Tahya Deddah1, Martin Styner1,2, Juan Prieto1

  • 1Department of Psychiatry, University of North Carolina, Chapel Hill, North Carolina, United States.

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|June 20, 2022
PubMed
Summary

A new software tool, LocalEACSF, quantifies local extra-axial cerebrospinal fluid (EA-CSF) distribution in infants. This tool aids research into autism spectrum disorder (ASD) and brain development by providing accurate EA-CSF measurements.

Keywords:
Cerebrospinal FluidExtra-axial CSFOpen-Source Software

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Area of Science:

  • Neuroimaging
  • Developmental Neuroscience
  • Computational Anatomy

Background:

  • Extra-axial cerebrospinal fluid (EA-CSF) volume is implicated in infant autism spectrum disorder (ASD) neuropathology.
  • Previous methods lacked tools for quantifying localized EA-CSF distribution, hindering detailed analysis.
  • Existing local EA-CSF quantification methods had limitations, including software unavailability and redundant measurements.

Purpose of the Study:

  • To introduce LocalEACSF, a novel, user-friendly software tool for local EA-CSF quantification.
  • To provide a graphical user interface for accessible neuroimaging analysis.
  • To improve the accuracy and interpretability of EA-CSF measurements in research.

Main Methods:

  • Development of a graphical user interface (GUI) based software tool.
  • Adaptation of a pipeline combining probabilistic brain tissue segmentation, cortical surface reconstruction, and streamline-based quantification.
  • Integration of quality control visualizations for assessing EA-CSF quantification accuracy.

Main Results:

  • LocalEACSF enables straightforward local EA-CSF extraction using an adapted pipeline.
  • The tool offers quality control visualizations for assessing quantification accuracy.
  • Improvements and optimizations enhance prior EA-CSF assessment methods.

Conclusions:

  • LocalEACSF empowers neuroimaging labs to investigate local EA-CSF in brain development studies.
  • The software facilitates research into the role of EA-CSF in typical and atypical development, including ASD.
  • No extensive technical expertise is required to utilize the LocalEACSF tool.