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Stroke, Vol 23, 1073-1077, Copyright © 1992 by American Heart Association

ARTICLES

Transcranial Doppler correlation with cerebral angiography in sickle cell disease

RJ Adams, FT Nichols, R Figueroa, V McKie and T Lott
Department of Neurology, Medical College of Georgia, Augusta 30912.

BACKGROUND AND PURPOSE: Cerebral infarction in sickle cell disease is associated with arterial narrowing or occlusions of intracranial arteries. Primary stroke prevention would be feasible if a noninvasive screening test could be developed to detect intracranial disease in patients before symptoms develop. METHODS: To determine the sensitivity and specificity of transcranial Doppler in detecting significant (greater than or equal to 50% lumen diameter reduction) intracranial arterial lesions, we compared transcranial Doppler and cerebral angiography in a primarily young, symptomatic group of 33 patients (18 males and 15 females) with sickle cell disease. RESULTS: From a total of 34 examinations, transcranial Doppler detected significant abnormalities in 26 of 29 (sensitivity 90%, specificity 100%). Five were normal by both techniques. The transorbital examination detected abnormalities in two patients whose studies were otherwise unremarkable. CONCLUSIONS: Transcranial Doppler is sensitive and specific for the detection of arterial vasculopathy of sickle cell disease. Screening should include a transorbital examination of the distal internal carotid artery as well as examination using the transtemporal approach.

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