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Language mapping in children using resting-state functional connectivity: comparison with a task-based approach.

Anne Gallagher1, Julie Tremblay1, Phetsamone Vannasing1

  • 1CHU Sainte-Justine Research Center, Laboratoire d'Imagerie Optique en Neurodéveloppement (LIONLab), 3175 Chemin de la Côte-Sainte-Catherine, Montréal, Québec H3T 1C5, CanadabUniversité de Montréal, Centre de Recherche en Neuropsychologie et Cognition, Department of Psychology, Marie-Victorin Building, P.O. Box 6128 Centre-ville Station, 2900 Boulevard Édouard-Montpetit, Montréal, Québec H3T 1J4, Canada.

Journal of Biomedical Optics
|December 20, 2016
PubMed
Summary
This summary is machine-generated.

Resting-state functional connectivity near-infrared spectroscopy (fcNIRS) accurately maps language networks in children, offering a valuable alternative to task-based methods for neurosurgical planning.

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Area of Science:

  • Neuroscience
  • Medical Imaging
  • Pediatric Neurology

Background:

  • Neurosurgery for brain tumors or epilepsy requires presurgical language mapping.
  • Current language mapping techniques face challenges in pediatric populations.
  • Near-infrared spectroscopy (NIRS) shows promise for pediatric language localization.

Purpose of the Study:

  • To evaluate the effectiveness of resting-state functional connectivity NIRS (fcNIRS) for pediatric language mapping.
  • To compare fcNIRS with conventional task-based NIRS in children and adults.
  • To assess fcNIRS as a tool for presurgical language assessment.

Main Methods:

  • Compared fcNIRS with task-based NIRS in 33 healthy participants (25 children, 8 adults).
  • Acquired fNIRS data during rest and a language task.
  • Analyzed language localization and hemispheric dominance using Dice similarity coefficient and kappa statistics.

Main Results:

  • fcNIRS demonstrated high concordance with task-based NIRS for language localization (Dice = 0.81 ± 0.13).
  • Excellent agreement was found for hemispheric language dominance (kappa = 0.86, p < 0.006).
  • fcNIRS effectively identified language networks at rest.

Conclusions:

  • Resting-state fcNIRS is a valuable, non-invasive tool for pediatric language mapping.
  • This technique offers a promising alternative for patients unable to perform tasks.
  • fcNIRS may enhance presurgical planning in pediatric neurosurgery and for patients with cognitive impairments.