Pulsed Doppler Accuracy Assessment Due to Frequency-Dependent Attenuation and Rayleigh Scattering Error Sources

Paul M. Embree, William D. O'brien

Research output: Contribution to journalArticlepeer-review

Abstract

All engineering measurements are subject to inaccurate and imprecise estimates, including the estimate of blood flow velocity. An assessment of specific error sources can minimize such uncertainties. Frequency-dependent attenuation and Rayleigh scattering are significant error sources for pulsed Doppler ultrasound because the transmitted ultrasonic signal has a finite width spectrum. The former causes a frequency downshift and the latter a frequency upshift, both of which are independent of the actual Doppler frequency shift. This communication evaluates these error sources through computer simulation and compares the computed error to experimental data.

Original languageEnglish (US)
Pages (from-to)322-326
Number of pages5
JournalIEEE Transactions on Biomedical Engineering
Volume37
Issue number3
DOIs
StatePublished - Mar 1990
Externally publishedYes

ASJC Scopus subject areas

  • Biomedical Engineering

Fingerprint

Dive into the research topics of 'Pulsed Doppler Accuracy Assessment Due to Frequency-Dependent Attenuation and Rayleigh Scattering Error Sources'. Together they form a unique fingerprint.

Cite this