Modal analysis of ultrasound radiation force generated shear waves on arteries

Miguel Bernal, Matthew W Urban, Ivan Nenadic, James F Greenleaf

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

7 Citations (Scopus)

Abstract

Arterial elasticity has gained importance in the past few decades as a predictor of cardiovascular diseases and mortality. Measuring the speed of propagation of the pressure wave traveling in the wall of the arteries has been used for a very long time to estimate the mechanical properties of the artery. Two of the major disadvantages of this method are the low temporal resolution (1 sample per second) and the low spatial resolution (carotid-femoral or carotid-radial segments). In our laboratory, we have been working on an ultrasound radiation force-based method to generate high frequency local shear waves, which will allow the study of the mechanical properties of short arterial segments within the heart cycle. In this work we present a modal analysis of the waves generated by our method on an excised pig artery. By doing a twodimensional fast Fourier transform (2D FFT) of the propagating waves, it was possible to differentiate the multiple Lamb-like modes propagating in the wall. These modes showed changes with varying transmural pressure; this was expected as the arterial stiffness increases with pressure. This work shows the feasibility of our method for the study and characterization of propagating modes in the arterial wall. Future studies include developing a Lamb wave model for cylindrical viscoelastic structures to fit our data.

Original languageEnglish (US)
Title of host publication2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10
Pages2585-2588
Number of pages4
DOIs
StatePublished - 2010
Event2010 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10 - Buenos Aires, Argentina
Duration: Aug 31 2010Sep 4 2010

Other

Other2010 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10
CountryArgentina
CityBuenos Aires
Period8/31/109/4/10

Fingerprint

Shear waves
Modal analysis
Ultrasonics
Radiation
Fast Fourier transforms
Mechanical properties
Surface waves
Elasticity
Stiffness

ASJC Scopus subject areas

  • Biomedical Engineering

Cite this

Bernal, M., Urban, M. W., Nenadic, I., & Greenleaf, J. F. (2010). Modal analysis of ultrasound radiation force generated shear waves on arteries. In 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10 (pp. 2585-2588). [5626667] https://doi.org/10.1109/IEMBS.2010.5626667

Modal analysis of ultrasound radiation force generated shear waves on arteries. / Bernal, Miguel; Urban, Matthew W; Nenadic, Ivan; Greenleaf, James F.

2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10. 2010. p. 2585-2588 5626667.

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

Bernal, M, Urban, MW, Nenadic, I & Greenleaf, JF 2010, Modal analysis of ultrasound radiation force generated shear waves on arteries. in 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10., 5626667, pp. 2585-2588, 2010 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10, Buenos Aires, Argentina, 8/31/10. https://doi.org/10.1109/IEMBS.2010.5626667
Bernal M, Urban MW, Nenadic I, Greenleaf JF. Modal analysis of ultrasound radiation force generated shear waves on arteries. In 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10. 2010. p. 2585-2588. 5626667 https://doi.org/10.1109/IEMBS.2010.5626667
Bernal, Miguel ; Urban, Matthew W ; Nenadic, Ivan ; Greenleaf, James F. / Modal analysis of ultrasound radiation force generated shear waves on arteries. 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10. 2010. pp. 2585-2588
@inproceedings{07420100ed8347899cdf0264b2640d2f,
title = "Modal analysis of ultrasound radiation force generated shear waves on arteries",
abstract = "Arterial elasticity has gained importance in the past few decades as a predictor of cardiovascular diseases and mortality. Measuring the speed of propagation of the pressure wave traveling in the wall of the arteries has been used for a very long time to estimate the mechanical properties of the artery. Two of the major disadvantages of this method are the low temporal resolution (1 sample per second) and the low spatial resolution (carotid-femoral or carotid-radial segments). In our laboratory, we have been working on an ultrasound radiation force-based method to generate high frequency local shear waves, which will allow the study of the mechanical properties of short arterial segments within the heart cycle. In this work we present a modal analysis of the waves generated by our method on an excised pig artery. By doing a twodimensional fast Fourier transform (2D FFT) of the propagating waves, it was possible to differentiate the multiple Lamb-like modes propagating in the wall. These modes showed changes with varying transmural pressure; this was expected as the arterial stiffness increases with pressure. This work shows the feasibility of our method for the study and characterization of propagating modes in the arterial wall. Future studies include developing a Lamb wave model for cylindrical viscoelastic structures to fit our data.",
author = "Miguel Bernal and Urban, {Matthew W} and Ivan Nenadic and Greenleaf, {James F}",
year = "2010",
doi = "10.1109/IEMBS.2010.5626667",
language = "English (US)",
isbn = "9781424441235",
pages = "2585--2588",
booktitle = "2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10",

}

TY - GEN

T1 - Modal analysis of ultrasound radiation force generated shear waves on arteries

AU - Bernal, Miguel

AU - Urban, Matthew W

AU - Nenadic, Ivan

AU - Greenleaf, James F

PY - 2010

Y1 - 2010

N2 - Arterial elasticity has gained importance in the past few decades as a predictor of cardiovascular diseases and mortality. Measuring the speed of propagation of the pressure wave traveling in the wall of the arteries has been used for a very long time to estimate the mechanical properties of the artery. Two of the major disadvantages of this method are the low temporal resolution (1 sample per second) and the low spatial resolution (carotid-femoral or carotid-radial segments). In our laboratory, we have been working on an ultrasound radiation force-based method to generate high frequency local shear waves, which will allow the study of the mechanical properties of short arterial segments within the heart cycle. In this work we present a modal analysis of the waves generated by our method on an excised pig artery. By doing a twodimensional fast Fourier transform (2D FFT) of the propagating waves, it was possible to differentiate the multiple Lamb-like modes propagating in the wall. These modes showed changes with varying transmural pressure; this was expected as the arterial stiffness increases with pressure. This work shows the feasibility of our method for the study and characterization of propagating modes in the arterial wall. Future studies include developing a Lamb wave model for cylindrical viscoelastic structures to fit our data.

AB - Arterial elasticity has gained importance in the past few decades as a predictor of cardiovascular diseases and mortality. Measuring the speed of propagation of the pressure wave traveling in the wall of the arteries has been used for a very long time to estimate the mechanical properties of the artery. Two of the major disadvantages of this method are the low temporal resolution (1 sample per second) and the low spatial resolution (carotid-femoral or carotid-radial segments). In our laboratory, we have been working on an ultrasound radiation force-based method to generate high frequency local shear waves, which will allow the study of the mechanical properties of short arterial segments within the heart cycle. In this work we present a modal analysis of the waves generated by our method on an excised pig artery. By doing a twodimensional fast Fourier transform (2D FFT) of the propagating waves, it was possible to differentiate the multiple Lamb-like modes propagating in the wall. These modes showed changes with varying transmural pressure; this was expected as the arterial stiffness increases with pressure. This work shows the feasibility of our method for the study and characterization of propagating modes in the arterial wall. Future studies include developing a Lamb wave model for cylindrical viscoelastic structures to fit our data.

UR - http://www.scopus.com/inward/record.url?scp=78650808593&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78650808593&partnerID=8YFLogxK

U2 - 10.1109/IEMBS.2010.5626667

DO - 10.1109/IEMBS.2010.5626667

M3 - Conference contribution

SN - 9781424441235

SP - 2585

EP - 2588

BT - 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10

ER -