Detection of shear wave propagation in an artery using pulse echo ultrasound and Kalman filtering

Research output: Contribution to journalConference article

18 Scopus citations

Abstract

Oscillatory radiation force from ultrasound can be used to excite monochromatic waves on an artery. The wave propagation speed is related to the elasticity and viscosity of the artery, and can be estimated from phase changes over a short distance traveled. In our earlier phantom experiments, a laser vibrometer was used as a detection method because the motion of the artery is very small (submicron). We have proposed a novel method using pulse echo ultrasound and Kalman filtering to detect such small harmonic motions, which facilitates the measurements in opaque tissues. In this work, we apply this new method to estimate the shear wave velocity of an artery.

Original languageEnglish (US)
Pages (from-to)1251-1253
Number of pages3
JournalProceedings - IEEE Ultrasonics Symposium
Volume2
StatePublished - Dec 1 2004
Event2004 IEEE Ultrasonics Symposium - Montreal, Que., Canada
Duration: Aug 23 2004Aug 27 2004

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Keywords

  • Artery
  • Kalman filter
  • Pulse echo ultrasound
  • Radiation force
  • Shear weave
  • Stiffness
  • Vibration

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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