Experimental comparison of the signal from laminar and disturbed blood flow

K. W. Ferrara, V. R. Algazi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In order to determine the limiting velocity resolution that can be achieved using ultrasound, we have completed an experimental evaluation of the statistics of the received signal from laminar flow and disturbed flow following the transmission of a train of short pulses. Experimental rf M-mode images are presented using a high volume concentration of scatterers in a blood mimicking solution. For laminar flow, when a significant range of velocity components is present within the sample volume, this range is the limiting factor in the length of the correlated signal interval. In addition, we have studied the disturbed flow that occurs distal to a 50% stenosis. Particularly for the low velocities that would be associated with diastole, the duration of the signal correlation increases in a spatial region that is distal to the stenosis and near the vessel walls, rather than the expected decrease.

Original languageEnglish (US)
Title of host publicationProceedings of the IEEE Ultrasonics Symposium
Place of PublicationPiscataway, NJ, United States
PublisherPubl by IEEE
Pages1043-1047
Number of pages5
Volume2
ISBN (Print)0780312783
StatePublished - 1993
Externally publishedYes
EventProceedings of the IEEE 1993 Ultrasonics Symposium - Baltimore, MD, USA
Duration: Oct 31 1993Nov 3 1993

Other

OtherProceedings of the IEEE 1993 Ultrasonics Symposium
CityBaltimore, MD, USA
Period10/31/9311/3/93

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Ferrara, K. W., & Algazi, V. R. (1993). Experimental comparison of the signal from laminar and disturbed blood flow. In Proceedings of the IEEE Ultrasonics Symposium (Vol. 2, pp. 1043-1047). Publ by IEEE.