PLoS ONE (Jan 2017)

Lesions in deep gray nuclei after severe traumatic brain injury predict neurologic outcome.

  • Frédéric Clarençon,
  • Éric Bardinet,
  • Jacques Martinerie,
  • Vincent Pelbarg,
  • Nicolas Menjot de Champfleur,
  • Rajiv Gupta,
  • Eléonore Tollard,
  • Gustavo Soto-Ares,
  • Danielle Ibarrola,
  • Emmanuelle Schmitt,
  • Thomas Tourdias,
  • Vincent Degos,
  • Jérome Yelnik,
  • Didier Dormont,
  • Louis Puybasset,
  • Damien Galanaud,
  • Neuro Imaging for Coma Emergence and Recovery (NICER) consortium

DOI
https://doi.org/10.1371/journal.pone.0186641
Journal volume & issue
Vol. 12, no. 11
p. e0186641

Abstract

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This study evaluates the correlation between injuries to deep gray matter nuclei, as quantitated by lesions in these nuclei on MR T2 Fast Spin Echo (T2 FSE) images, with 6-month neurological outcome after severe traumatic brain injury (TBI).Ninety-five patients (80 males, mean age = 36.7y) with severe TBI were prospectively enrolled. All patients underwent a MR scan within the 45 days after the trauma that included a T2 FSE acquisition. A 3D deformable atlas of the deep gray matter was registered to this sequence; deep gray matter lesions (DGML) were evaluated using a semi-quantitative classification scheme. The 6-month outcome was dichotomized into unfavorable (death, vegetative or minimally conscious state) or favorable (minimal or no neurologic deficit) outcome.Sixty-six percent of the patients (63/95) had both satisfactory registration of the 3D atlas on T2 FSE and available clinical follow-up. Patients without DGML had an 89% chance (P = 0.0016) of favorable outcome while those with bilateral DGML had an 80% risk of unfavorable outcome (P = 0.00008). Multivariate analysis based on DGML accurately classified patients with unfavorable neurological outcome in 90.5% of the cases.Lesions in deep gray matter nuclei may predict long-term outcome after severe TBI with high sensitivity and specificity.