Accuracy of transcranial doppler compared with CT angiography in diagnosing arterial obstructions in acute ischemic strokes

  • Brunser A
  • Lavados P
  • Hoppe A
 et al. 
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Abstract

BACKGROUND AND PURPOSE: Patients with acute ischemic stroke and intracranial arterial obstructions have a poor prognosis and a high probability of deteriorating at 24 hours. We aimed to evaluate the diagnostic accuracy of power motion mode Doppler (PMD-TCD) compared with CT angiography as standard in diagnosing intracranial arterial obstructions in patients presenting with ischemic stroke of 1000, negative likelihood ratio 0.42, sensitivity 57.1%, and specificity 100%. The post-test probability for any occluded artery when PMD-TCD was positive increased for any admission National Institutes of Health Stroke Scale score but was especially remarkable for National Institutes of Health Stroke Scale scores between 7 and 15 points. CONCLUSIONS: PMD-TCD is valid compared with CT angiography for the diagnosis of arterial occlusions in patients with acute ischemic stroke, especially in middle cerebral artery obstructions.

Author-supplied keywords

  • Doppler ultrasound
  • Intracranial arterial diseases
  • Sensitivity
  • Specificity
  • Stroke
  • Ultrasonography

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Authors

  • Alejandro M. Brunser

  • Pablo M. Lavados

  • Arnold Hoppe

  • Javiera Lopez

  • Marcela Valenzuela

  • Rodrigo Rivas

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