Measurement of shear wave using ultrasound and Kalman filter with large background motion for cardiovascular studies

Y. Zheng, A. Yao, S. Chen, J. F. Greenleaf

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

4 Scopus citations

Abstract

Phases of tissue harmonic motions, induced by the ultrasound radiation force, over a distance can be detected by pulse echo ultrasound and Kalman filter. However, large background motions due to cardiovascular motion distort the weak harmonic vibration. The background motion can be modeled by the Wiener process or random-walk process. The harmonic motion and the background motion are represented by a fourth-order differential equation and four state variables. Based on this model, the Kalman filter estimates phase shifts of shear wave over a short distance in a tissue region from large background motions. The study shows that the estimates are valid when the velocity and acceleration of background motion are less than 3 m/s and 3 m/s/s, respectively.

Original languageEnglish (US)
Title of host publication2006 IEEE International Ultrasonics Symposium, IUS
Pages718-721
Number of pages4
DOIs
StatePublished - Dec 1 2006

Publication series

NameProceedings - IEEE Ultrasonics Symposium
Volume1
ISSN (Print)1051-0117

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Keywords

  • Harmonic motion
  • Kalman filter
  • Phase shift
  • Random process
  • Shear wave
  • Shear wave speed
  • Vibration

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

Cite this

Zheng, Y., Yao, A., Chen, S., & Greenleaf, J. F. (2006). Measurement of shear wave using ultrasound and Kalman filter with large background motion for cardiovascular studies. In 2006 IEEE International Ultrasonics Symposium, IUS (pp. 718-721). [4152050] (Proceedings - IEEE Ultrasonics Symposium; Vol. 1). https://doi.org/10.1109/ULTSYM.2006.194