Abstract:
:The value of the concomittant use of a real time frequency analyzer along with a continuous wave carotid Doppler scanner is demonstrated in this study of 118 cases. With a colour-coded Doppler scanner alone, internal carotid stenoses greater than 35% were diagnosed with a sensitivity of 95% and a specificity of 82%. With the addition of frequency analysis certain inherent problems with Doppler scanning were overcome and with the measurement of the peak Doppler frequency, the specificity was improved to 93%.
journal_name
Strokejournal_title
Strokeauthors
Johnston KW,Brown PM,Kassam Mdoi
10.1161/01.str.13.5.660subject
Has Abstractpub_date
1982-09-01 00:00:00pages
660-6issue
5eissn
0039-2499issn
1524-4628journal_volume
13pub_type
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