Use of Transcranial Doppler (TCD) Ultrasound in the Neurocritical Care Unit

Atul Kalanuria, Paul A. Nyquist, Rocco A. Armonda, Alexander Razumovsky

Research output: Contribution to journalReview articlepeer-review

20 Scopus citations


Transcranial Doppler (TCD) is a portable device that uses a handheld 2-MHz transducer. It is most commonly used in subarachnoid hemorrhage where cerebral blood flow velocities in major intracranial blood vessels are measured to detect vasospasm in the first 2 to 3 weeks. TCD is used to detect vasospasm in traumatic brain injury and post-tumor resection, measurement of cerebral autoregulation and cerebrovascular reactivity, diagnosis of acute arterial occlusions in stroke, screening for patent foramen ovale and monitoring of emboli. It can be used to detect abnormally high intracranial pressure and for confirmation of total cerebral circulatory arrest in brain death.

Original languageEnglish (US)
Pages (from-to)441-456
Number of pages16
JournalNeurosurgery clinics of North America
Issue number3
StatePublished - Jul 2013


  • Intracranial hypertension
  • Neurocritical care unit
  • Stroke
  • Transcranial Doppler
  • Vasospasm

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology


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