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Brain Network Disruption in Whiplash.

J P Higgins1, J M Elliott2,3, T B Parrish4

  • 1From the Departments of Radiology (J.P.H., T.B.P.).

AJNR. American Journal of Neuroradiology
|June 6, 2020
PubMed
Summary
This summary is machine-generated.

Whiplash-associated disorders show altered brain network structure. Lower brain network modularity correlates with increased cervical muscle fat infiltration, suggesting a link between whiplash severity and neurological changes.

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Area of Science:

  • Neuroscience
  • Radiology
  • Orthopedics

Background:

  • Whiplash-associated disorders (WAD) are common after car accidents, causing cognitive and affective symptoms.
  • The underlying neural mechanisms of chronic WAD remain largely unknown.
  • Understanding WAD pathophysiology is crucial for effective treatment.

Purpose of the Study:

  • To investigate brain network changes in individuals with chronic WAD using resting-state fMRI.
  • To explore associations between brain network structure and clinical outcome metrics in WAD.
  • To identify potential neuroimaging biomarkers for WAD severity.

Main Methods:

  • Resting-state functional magnetic resonance imaging (fMRI) was used to assess brain network modularity in 23 WAD participants.
  • Network modularity, a measure of functional segregation, was analyzed.
  • Associations were examined with neck disability, distress, depression, pain, and cervical muscle fat infiltration.

Main Results:

  • A significant association was found between brain network structure and cervical muscle fat infiltration.
  • Lower network modularity correlated with higher amounts of cervical muscle fat infiltration (t = -4.02, R² = 0.49, P < .001).
  • This relationship persisted after controlling for age, sex, BMI, and motion.

Conclusions:

  • Reduced brain network modularity is linked to increased cervical muscle fat infiltration in WAD.
  • These findings suggest a connection between WAD severity and neurological alterations.
  • Neuroimaging may play a role in understanding the pathophysiology of chronic WAD.