Analysis of the frequency modulation pre
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Julia L. Smith; David H. Evans; A.Ross Naylor
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Article
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1997
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Elsevier Science
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English
β 764 KB
The purpose of this study was to investigate the incidence of frequency modulation in Doppler signals from cerebral emboli and to seek possible explanations for its occurrence. Signals from 200 particulate emboli and 200 presumed gaseous emboli were studies. The Doppler signals were visualised in th