Shearwave dispersion ultrasound vibrometry applied to in vivo myocardium

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

34 Citations (Scopus)

Abstract

Diastolic properties of the myocardium are important for normal cardiac function and may contribute to the condition of heart failure. Measuring the viscoelastic properties of the left ventricular myocardium is difficult in vivo using noninvasive methods. In this study, we used a mechanical actuator to create harmonic, propagating mechanical waves in the myocardial tissue in vivo. The motion was measured using ultrasound imaging techniques. The wave propagation velocities were measured over the 50-350Hz frequency range. The dispersion curves were fit with an asymmetrical Lamb wave model to obtain estimates of the shear elasticity and viscosity of the myocardial tissue. The method was applied to estimate viscoelastic properties of the myocardium during diastole and systole.

Original languageEnglish (US)
Title of host publicationProceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009
Pages2891-2894
Number of pages4
DOIs
StatePublished - 2009
Event31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009 - Minneapolis, MN, United States
Duration: Sep 2 2009Sep 6 2009

Other

Other31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009
CountryUnited States
CityMinneapolis, MN
Period9/2/099/6/09

Fingerprint

Myocardium
Mechanical actuators
Ultrasonics
Mechanical waves
Tissue
Surface waves
Wave propagation
Elasticity
Diastole
Systole
Viscosity
Imaging techniques
Ultrasonography
Heart Failure

ASJC Scopus subject areas

  • Cell Biology
  • Developmental Biology
  • Biomedical Engineering
  • Medicine(all)

Cite this

Pislaru, C. D., Urban, M. W., Nenadic, I., & Greenleaf, J. F. (2009). Shearwave dispersion ultrasound vibrometry applied to in vivo myocardium. In Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009 (pp. 2891-2894). [5333114] https://doi.org/10.1109/IEMBS.2009.5333114

Shearwave dispersion ultrasound vibrometry applied to in vivo myocardium. / Pislaru, Cristina D; Urban, Matthew W; Nenadic, Ivan; Greenleaf, James F.

Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009. 2009. p. 2891-2894 5333114.

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

Pislaru, CD, Urban, MW, Nenadic, I & Greenleaf, JF 2009, Shearwave dispersion ultrasound vibrometry applied to in vivo myocardium. in Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009., 5333114, pp. 2891-2894, 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009, Minneapolis, MN, United States, 9/2/09. https://doi.org/10.1109/IEMBS.2009.5333114
Pislaru CD, Urban MW, Nenadic I, Greenleaf JF. Shearwave dispersion ultrasound vibrometry applied to in vivo myocardium. In Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009. 2009. p. 2891-2894. 5333114 https://doi.org/10.1109/IEMBS.2009.5333114
Pislaru, Cristina D ; Urban, Matthew W ; Nenadic, Ivan ; Greenleaf, James F. / Shearwave dispersion ultrasound vibrometry applied to in vivo myocardium. Proceedings of the 31st Annual International Conference of the IEEE Engineering in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009. 2009. pp. 2891-2894
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