Theoretical and experimental studies on group velocity for estimating the elasticity of arteries

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

1 Scopus citations

Abstract

Pulse wave velocity (PWV) is widely used for estimating the stiffness of an artery. However, PWV is an average indicator of artery stiffness between two measuring points, and therefore does not identify local stiffness. We have developed a noninvasive method for generating and detecting the wave propagation in the arterial wall. The phase velocity can be measured accurately over a few millimeters. In this paper, a mathematical model for group velocity analysis is developed from a three-dimensional cylindrical shell theory. Experimental studies on group velocity are carried out on natural latex tubes in air. The theoretical analysis agrees with the experiments well. The theory can be used for estimating the elasticity of arteries from the group velocity measurements.

Original languageEnglish (US)
Title of host publication2009 IEEE International Ultrasonics Symposium and Short Courses, IUS 2009
DOIs
StatePublished - Dec 1 2009
Event2009 IEEE International Ultrasonics Symposium, IUS 2009 - Rome, Italy
Duration: Sep 20 2009Sep 23 2009

Publication series

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

Other

Other2009 IEEE International Ultrasonics Symposium, IUS 2009
CountryItaly
CityRome
Period9/20/099/23/09

Keywords

  • Artery
  • Elasticity
  • Group velocity
  • Implse wave

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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