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Abstract
The results of a directional Doppler ultrasound cerebrovascular examination were compared
with arteriographic findings in 56 patients with resolved hemispheric strokes or transient
ischemic attacks. Aortic arch arteriography revealed appropriate internal carotid
artery lesions which were amenable to endarterectomy in 36 patients (64 percent).
Of this group, abnormal Doppler findings were present in only 11 patients (31 percent).
The definitive clinical applications of the Doppler cerebrovascular examination are
limited to those settings in which demonstration of altered hemodynamics is decisive.
In view of the apparent preponderance of embolic rather than hemodynamic mechanisms
in the pathogenesis of focal cerebral ischemia, the Doppler examination has only an
adjunctive role in the evaluation of most patients with hemispheric symptoms of cerebrovascular
occlusive disease. In such patients, preselection of candidates for diagnostic arteriography
is an inappropriate application of the Doppler cerebrovascular examination.
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Article info
Publication history
Accepted:
November 28,
1975
Identification
Copyright
© 1976 Published by Elsevier Inc.