Table The head impulse test compared with brain MRI in the differentiation of stroke versus vestibular neuritis in patients presenting with acute vestibular syndrome
StrokeVestibular neuritis
Head impulse test normal47 (262+213)3 (32+03)
Head impulse test abnormal20 (172+33)45 (372+83)
  • The two studies included 126 patients. 10 patients already had stroke diagnosed and one did not have the head impulse test, leaving nā€Š=ā€Š115.

  • Sensitivity 94%; specificity 70%; positive predictive value 69%; negative predictive value 94%.