Document Detail

Transcranial Doppler in cerebrovascular disease.
MedLine Citation:
PMID:  3532436     Owner:  NLM     Status:  MEDLINE    
Doppler analysis of flow in intracranial arteries is now possible using a 2 MHz probe allowing sufficient penetration of bone to obtain signals noninvasively. Thirty-two normal subjects, and 11 patients with cerebrovascular diseases including vasospasm following subarachnoid hemorrhage, middle cerebral artery stenosis, and extracranial internal carotid artery stenosis were studied by transcranial Doppler. Increased peak velocity and spectral broadening of the reflected signal corresponded to clinical and angiographic evidence of middle cerebral artery vasospasm or stenosis. Decreased peak velocity and blunted waveforms occurred in the middle cerebral artery ipsilateral to severe extracranial internal carotid stenosis with poor crossfilling from the contralateral carotid artery. Abnormalities resolved following carotid endarterectomy. Transcranial Doppler identifies vasospasm or stenosis of the middle cerebral artery and may allow noninvasive evaluation of collateral flow across the anterior circle of Willis in patients with extracranial carotid artery stenosis.
L R Wechsler; A H Ropper; J P Kistler
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Publication Detail:
Type:  Case Reports; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Stroke; a journal of cerebral circulation     Volume:  17     ISSN:  0039-2499     ISO Abbreviation:  Stroke     Publication Date:    1986 Sep-Oct
Date Detail:
Created Date:  1986-11-19     Completed Date:  1986-11-19     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0235266     Medline TA:  Stroke     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  905-12     Citation Subset:  IM    
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MeSH Terms
Aged, 80 and over
Cerebral Arterial Diseases / diagnosis
Cerebrovascular Disorders / diagnosis*
Middle Aged
Subarachnoid Hemorrhage / diagnosis
Tomography, X-Ray Computed

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