Abstract
Transcranial Doppler ultrasound is a noninvasive technique of cerebral blood velocity measurement that is being increasingly used to detect untoward hemodynamic changes. In this report, we describe striking transcranial Doppler ultrasound changes occurring in 2 patients after cervical carotid artery occlusion that led to cerebral infarction. These changes consist of the sudden appearance of a Doppler signal of extremely low pulsatility and moderately high velocity in the middle cerebral artery distribution. In 1 patient, this signal was the first sign of carotid occlusion. We suggest that these transcranial Doppler ultrasound changes can provide an early warning of carotid artery compromise.
Original language | English (US) |
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Pages (from-to) | 101-103 |
Number of pages | 3 |
Journal | Annals of Neurology |
Volume | 31 |
Issue number | 1 |
DOIs | |
State | Published - Jan 1992 |
ASJC Scopus subject areas
- Neurology
- Clinical Neurology