Estimation of skin elasticity by measuring surface wave velocity under impulse stimulus using compact optical sensors

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

2 Citations (Scopus)

Abstract

Tissue elastography characterizes tissue mechanical properties, which can provide important information for diagnosis. While popular methods track shear wave propagation inside tissue, this paper proposes a method to estimate elasticity by measuring group velocity of the surface Raleigh wave. This method features noncontact, noninvasive and low-cost and have a great potential for clinic applications. By measuring the impulse response of a tissue simulating phantom at multiple points along the direction of surface wave propagation, the group velocity is estimated to be 12.61 m/s, therefore Young's modulus is 526 kPa. This result is consistent with the results obtained by Continuous Wave (CW) excitation.

Original languageEnglish (US)
Title of host publicationProceedings - IEEE Ultrasonics Symposium
DOIs
StatePublished - 2009
Event2009 IEEE International Ultrasonics Symposium, IUS 2009 - Rome, Italy
Duration: Sep 20 2009Sep 23 2009

Other

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

Fingerprint

optical measuring instruments
stimuli
surface waves
impulses
elastic properties
group velocity
wave propagation
wave excitation
S waves
continuous radiation
modulus of elasticity
mechanical properties
estimates

Keywords

  • Compact sensor
  • Surface wave
  • Tissue elasticity

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

Cite this

Estimation of skin elasticity by measuring surface wave velocity under impulse stimulus using compact optical sensors. / Qiang, Bo; Zhang, Xiaoming; Greenleaf, James F.

Proceedings - IEEE Ultrasonics Symposium. 2009. 5441574.

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

Qiang, B, Zhang, X & Greenleaf, JF 2009, Estimation of skin elasticity by measuring surface wave velocity under impulse stimulus using compact optical sensors. in Proceedings - IEEE Ultrasonics Symposium., 5441574, 2009 IEEE International Ultrasonics Symposium, IUS 2009, Rome, Italy, 9/20/09. https://doi.org/10.1109/ULTSYM.2009.5441574
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AB - Tissue elastography characterizes tissue mechanical properties, which can provide important information for diagnosis. While popular methods track shear wave propagation inside tissue, this paper proposes a method to estimate elasticity by measuring group velocity of the surface Raleigh wave. This method features noncontact, noninvasive and low-cost and have a great potential for clinic applications. By measuring the impulse response of a tissue simulating phantom at multiple points along the direction of surface wave propagation, the group velocity is estimated to be 12.61 m/s, therefore Young's modulus is 526 kPa. This result is consistent with the results obtained by Continuous Wave (CW) excitation.

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