Experimental evaluation of the effect of the beam-vessel angle on the received acoustic signal from blood

K. Whittaker Ferrara, A. Kalisz, B. Zagar, V. R. Algazi

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

Abstract

In order to explore the feasibility of algorithms to determine the three dimensional (3D) velocity magnitude from the received ultrasonic blood echo from a single line of sight, the signal from small sample volumes is studied as a function of beam-vessel angle. As opposed to previous treatments of the effect of the beam-vessel angle on the received acoustic signal, a wideband signal is transmitted and the returned signal in each sample volume is analyzed. It is shown that the two major effects limiting the correlated signal interval are the spread of axial velocities within the sample volume and the transit time across the lateral beam width. Particularly for small beam-vessel angles, the spread of velocities limits the correlated signal interval.

Original languageEnglish (US)
Title of host publicationProceedings of the IEEE Ultrasonics Symposium
PublisherIEEE
Pages1691-1695
Number of pages5
Volume3
StatePublished - 1994
Externally publishedYes
EventProceedings of the 1994 IEEE Ultrasonics Symposium. Part 1 (of 3) - Cannes, Fr
Duration: Nov 1 1994Nov 4 1994

Other

OtherProceedings of the 1994 IEEE Ultrasonics Symposium. Part 1 (of 3)
CityCannes, Fr
Period11/1/9411/4/94

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Whittaker Ferrara, K., Kalisz, A., Zagar, B., & Algazi, V. R. (1994). Experimental evaluation of the effect of the beam-vessel angle on the received acoustic signal from blood. In Proceedings of the IEEE Ultrasonics Symposium (Vol. 3, pp. 1691-1695). IEEE.