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Sixty-five B-mode carotid sonograms were obtained at random on patients undergoing cerebral arteriography. A 5 mHz transducer was used.
The results were correlated with magnified cervical carotid arteriograms obtained on these patients. B-mode sonography was accurate in evaluating the carotid arteries for surgical stenosis in 72 per cent of the cases.
The feasibility of using B-mode sonography as a screening test in patients with asymptomatic carotid bruits is discussed.
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