A method for measuring wave speed dispersion in arteries by resonance

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

Abstract

Cardiovascular disease (CVD) has been the number one killer in the United States. It has long been recognized that a high percentage of all cardiovascular disease is associated with the hardening of arteries or arteriosclerosis. Several imaging techniques, including x-ray angiography, ultrasound, magnetic resonance imaging (MRI), etc., are available for imaging atherosclerotic arteries. Most imaging techniques measure luminal diameter, wall thickness and plaque volume. However, no current imaging methods can measure elasticity of the arterial wall. Pulse wave velocity (PWV) is a simple and robust method to measure arterial stiffness. However, PWV can not evaluate the local arterial stiffness. We have developed a novel ultrasound method for estimating local elasticity of arteries by the wave speed dispersion. In this paper, we present a method to measure the wave speed dispersion by resonance. Theory was developed to calculate the wave speed in cylindrical tubes. Experiments were done on a rubber tube. The resonance of the tube was generated by an air-coupled ultrasound transducer. The resonance frequency was measured by a laser vibrometer. Theoretical and experimental wave dispersions were compared. This method may be useful in characterizing the elastic properties of arterial samples where the wave speed dispersion can not be easily measured.

Original languageEnglish (US)
Title of host publicationASME International Mechanical Engineering Congress and Exposition, Proceedings
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages453-455
Number of pages3
Volume2
ISBN (Print)9780791843758
DOIs
StatePublished - 2010
Event2009 ASME International Mechanical Engineering Congress and Exposition, IMECE2009 - Lake Buena Vista, FL, United States
Duration: Nov 13 2009Nov 19 2009

Other

Other2009 ASME International Mechanical Engineering Congress and Exposition, IMECE2009
CountryUnited States
CityLake Buena Vista, FL
Period11/13/0911/19/09

Fingerprint

Imaging techniques
Ultrasonics
Elasticity
Stiffness
Angiography
Magnetic resonance
Dispersions
Hardening
Transducers
Rubber
X rays
Lasers
Air
Experiments

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Zhang, X., & Greenleaf, J. F. (2010). A method for measuring wave speed dispersion in arteries by resonance. In ASME International Mechanical Engineering Congress and Exposition, Proceedings (Vol. 2, pp. 453-455). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE2009-10508

A method for measuring wave speed dispersion in arteries by resonance. / Zhang, Xiaoming; Greenleaf, James F.

ASME International Mechanical Engineering Congress and Exposition, Proceedings. Vol. 2 American Society of Mechanical Engineers (ASME), 2010. p. 453-455.

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

Zhang, X & Greenleaf, JF 2010, A method for measuring wave speed dispersion in arteries by resonance. in ASME International Mechanical Engineering Congress and Exposition, Proceedings. vol. 2, American Society of Mechanical Engineers (ASME), pp. 453-455, 2009 ASME International Mechanical Engineering Congress and Exposition, IMECE2009, Lake Buena Vista, FL, United States, 11/13/09. https://doi.org/10.1115/IMECE2009-10508
Zhang X, Greenleaf JF. A method for measuring wave speed dispersion in arteries by resonance. In ASME International Mechanical Engineering Congress and Exposition, Proceedings. Vol. 2. American Society of Mechanical Engineers (ASME). 2010. p. 453-455 https://doi.org/10.1115/IMECE2009-10508
Zhang, Xiaoming ; Greenleaf, James F. / A method for measuring wave speed dispersion in arteries by resonance. ASME International Mechanical Engineering Congress and Exposition, Proceedings. Vol. 2 American Society of Mechanical Engineers (ASME), 2010. pp. 453-455
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