DAI

Medical abbreviation · Neurology

DAI
Stands forDiffuse axonal injury
CategoriesMedical

DAI stands for Diffuse axonal injury, a neurology abbreviation.

Widespread shearing damage to nerve fibers caused by rapid rotational acceleration and deceleration of the head, as in high-speed crashes. Patients are often deeply unconscious despite a CT scan that looks nearly normal.

Example: Comatose after rollover crash with unremarkable CT; MRI SWI shows microbleeds in the corpus callosum and brainstem: grade III DAI.

Usage notes

MRI, especially susceptibility-weighted imaging, shows small hemorrhages at the junction of gray and white matter, in the corpus callosum and in the brainstem; the Adams grading system classifies severity by these locations (grade I to III). Prognosis is worse with brainstem involvement. Shaken infants can sustain similar injuries.

More neurology abbreviations

  • CP – Cerebral palsy
  • CPP – Cerebral perfusion pressure
  • CSC – Comprehensive stroke center
  • CTE – Chronic traumatic encephalopathy
  • CVA – Cerebrovascular accident
  • CVST – Cerebral venous sinus thrombosis
  • DBS – Deep brain stimulation
  • DCI – Delayed cerebral ischemia
  • DLB – Dementia with Lewy bodies
  • DMD – Duchenne muscular dystrophy
  • DMT – Disease-modifying therapy
  • DTN – Door-to-needle time

See all 131 neurology abbreviations →

This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.