Excitation and measurement of flexural waves in arterial vessels

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

9 Citations (Scopus)

Abstract

Pulse wave velocity in an artery is a very important indicator of the stiffness and disease of the artery. The pulse wave velocity is directly related to the Young's modulus in the circumferential direction of the artery by the well known Moens-Korteweg equation. Pulse wave velocity in an artery is measured with the standard pulse delay technique. However, the precise timing of the pressure wave is difficult due to the presence of reflected waves. In this paper we propose to excite flexural waves in an artery by low frequency localized radiation force of ultrasound. These waves can be measured very accurately over a short distance. Experimental studies were carried out on a pig carotid artery in gelatin. The flexural wave speed was measured by the phase change at a known distance for a given frequency. Velocity dispersion was found for the flexural wave. This is very important because the Moens-Korteweg equation does not consider dispersion. Viscoelastic properties of the artery were also measured and discussed. The present technique offers a new tool for measuring wave speed in arterial vessels.

Original languageEnglish (US)
Title of host publicationProceedings of the IEEE Ultrasonics Symposium
EditorsD.E. Yuhas, S.C. Schneider
Pages1883-1886
Number of pages4
Volume2
StatePublished - 2003
Event2003 IEEE Ultrasonics Symposium - Proceedings - Honolulu, HI, United States
Duration: Oct 5 2003Oct 8 2003

Other

Other2003 IEEE Ultrasonics Symposium - Proceedings
CountryUnited States
CityHonolulu, HI
Period10/5/0310/8/03

Fingerprint

Elastic waves
Elastic moduli
Ultrasonics
Stiffness
Radiation

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Zhang, X., Kinnick, R. R., Fatemi, M., & Greenleaf, J. F. (2003). Excitation and measurement of flexural waves in arterial vessels. In D. E. Yuhas, & S. C. Schneider (Eds.), Proceedings of the IEEE Ultrasonics Symposium (Vol. 2, pp. 1883-1886)

Excitation and measurement of flexural waves in arterial vessels. / Zhang, Xiaoming; Kinnick, Randall R.; Fatemi, Mostafa; Greenleaf, James F.

Proceedings of the IEEE Ultrasonics Symposium. ed. / D.E. Yuhas; S.C. Schneider. Vol. 2 2003. p. 1883-1886.

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

Zhang, X, Kinnick, RR, Fatemi, M & Greenleaf, JF 2003, Excitation and measurement of flexural waves in arterial vessels. in DE Yuhas & SC Schneider (eds), Proceedings of the IEEE Ultrasonics Symposium. vol. 2, pp. 1883-1886, 2003 IEEE Ultrasonics Symposium - Proceedings, Honolulu, HI, United States, 10/5/03.
Zhang X, Kinnick RR, Fatemi M, Greenleaf JF. Excitation and measurement of flexural waves in arterial vessels. In Yuhas DE, Schneider SC, editors, Proceedings of the IEEE Ultrasonics Symposium. Vol. 2. 2003. p. 1883-1886
Zhang, Xiaoming ; Kinnick, Randall R. ; Fatemi, Mostafa ; Greenleaf, James F. / Excitation and measurement of flexural waves in arterial vessels. Proceedings of the IEEE Ultrasonics Symposium. editor / D.E. Yuhas ; S.C. Schneider. Vol. 2 2003. pp. 1883-1886
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