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Clinical significance of dilated Virchow-Robin spaces in mild traumatic brain injury

Matilde Inglese1, Robert I Grossman, Leonard Diller

  • 1Department of Radiology, New York University School of Medicine, NY 10016, USA. matilde.inglese@med.nyu.edu

Brain Injury
|January 13, 2006
PubMed
Abstract

Insights

Dilated Virchow-Robin spaces (VRS) were more numerous in traumatic brain injury (TBI) patients but not directly linked to neurocognitive deficits. This suggests VRS may result from shear-strain injury in TBI.

Area of Science:

  • Neuroimaging
  • Neurology
  • Trauma Research

Background:

  • Virchow-Robin spaces (VRS) are perivascular spaces in the brain.
  • Their role in traumatic brain injury (TBI) and neurocognitive function is not fully understood.

Purpose of the Study:

  • To examine the association between the number of dilated VRS and neurocognitive outcomes in TBI patients.
  • To compare VRS counts and neurocognitive performance between TBI patients and healthy controls.

Main Methods:

  • Magnetic Resonance Imaging (MRI) was used to assess VRS in 38 TBI patients and 21 controls.
  • Neuropsychological (NP) tests were administered to evaluate cognitive functions.

Main Results:

  • TBI patients exhibited a significantly higher average number of dilated VRS compared to controls.
  • No significant differences in overall NP test performance were observed between groups.
  • A short delay after trauma showed an inverse correlation between VRS count and processing speed, and a positive correlation with visual attention.

Conclusions:

  • Dilated VRS are not directly associated with neurocognitive deficits in TBI.
  • The findings suggest that increased VRS may be a consequence of shear-strain injury from TBI.

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