Viscoelasticity measurement of heart wall in in vivo

Hiroshi Kanai

doi:10.1109/ULTSYM.2004.1417767

Viscoelasticity measurement of heart wall in in vivo

Hiroshi Kanai

ENG - Electronic Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

Abstract

By measuring spatial distribution of the minute vibrations in the heart wall from the chest wall using ultrasound, we find that some impulses propagate along the heart wall in healthy human subjects just after closure of the aortic valve for the first time. Their amplitude is found to be on the order of several tens of micrometers, and up to 100 Hz. Their propagation speed shows frequency dispersion, which agrees with the theoretical characteristics of the Lamb wave. The instantaneous viscoelasticity of the wall is then noninvasively determined. These findings have a novel potential for myocardial tissue characterization in clinical diagnosis.

Original language	English
Title of host publication	Proceedings - 2004 IEEE Ultrasonics Symposium
Subtitle of host publication	A Conference of the IEEE International Ultrasonics, Ferroelectrics, and Frequency Control Society, UFFC-S
Editors	M.P. Yuhas
Pages	482-485
Number of pages	4
DOIs	https://doi.org/10.1109/ULTSYM.2004.1417767
Publication status	Published - 2004
Event	2004 IEEE Ultrasonics Symposium - Montreal, Que., Canada Duration: 2004 Aug 23 → 2004 Aug 27

Publication series

Name	Proceedings - IEEE Ultrasonics Symposium
Volume	1
ISSN (Print)	1051-0117

Other

Other	2004 IEEE Ultrasonics Symposium
Country/Territory	Canada
City	Montreal, Que.
Period	04/8/23 → 04/8/27

ASJC Scopus subject areas

Acoustics and Ultrasonics

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1109/ULTSYM.2004.1417767

Cite this

Viscoelasticity measurement of heart wall in in vivo. / Kanai, Hiroshi.

Proceedings - 2004 IEEE Ultrasonics Symposium: A Conference of the IEEE International Ultrasonics, Ferroelectrics, and Frequency Control Society, UFFC-S. ed. / M.P. Yuhas. 2004. p. 482-485 U2-E-4 (Proceedings - IEEE Ultrasonics Symposium; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Kanai, H 2004, Viscoelasticity measurement of heart wall in in vivo. in MP Yuhas (ed.), Proceedings - 2004 IEEE Ultrasonics Symposium: A Conference of the IEEE International Ultrasonics, Ferroelectrics, and Frequency Control Society, UFFC-S., U2-E-4, Proceedings - IEEE Ultrasonics Symposium, vol. 1, pp. 482-485, 2004 IEEE Ultrasonics Symposium, Montreal, Que., Canada, 04/8/23. https://doi.org/10.1109/ULTSYM.2004.1417767

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AB - By measuring spatial distribution of the minute vibrations in the heart wall from the chest wall using ultrasound, we find that some impulses propagate along the heart wall in healthy human subjects just after closure of the aortic valve for the first time. Their amplitude is found to be on the order of several tens of micrometers, and up to 100 Hz. Their propagation speed shows frequency dispersion, which agrees with the theoretical characteristics of the Lamb wave. The instantaneous viscoelasticity of the wall is then noninvasively determined. These findings have a novel potential for myocardial tissue characterization in clinical diagnosis.

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ER -

Viscoelasticity measurement of heart wall in in vivo

Abstract

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ASJC Scopus subject areas

UN SDGs

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