Orthogonal frequency ultrasound vibrometry

Yi Zheng, Aiping Yao, Shigao D Chen, Matthew W Urban, Randy Kinnick, James F Greenleaf

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

1 Citation (Scopus)

Abstract

New vibration pulses are proposed to increase the power of shear waves induced by ultrasound radiation force in a tissue region with a preferred spectral distribution. The new pulses are sparsely sampled from an orthogonal frequency wave composed of several sinusoidal signals. Those sinusoidal signals have different frequencies and are orthogonal to each other. The phase and amplitude of each sinusoidal signal are adjusted to control the shape of the orthogonal frequency wave. Amplitude of the sinusoidal signal is increased as its frequency increases to compensate for higher loss at higher frequency in the tissue region. The new vibration pulses and detection pulses can be interleaved for array transducer applications. The experimental results show that the new vibration pulses significantly increases induced tissue vibration with the same peak ultrasound intensity, compared with the binary vibration pulses.

Original languageEnglish (US)
Title of host publicationASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Pages859-863
Number of pages5
Volume2
DOIs
StatePublished - 2010
EventASME 2010 International Mechanical Engineering Congress and Exposition, IMECE 2010 - Vancouver, BC, Canada
Duration: Nov 12 2010Nov 18 2010

Other

OtherASME 2010 International Mechanical Engineering Congress and Exposition, IMECE 2010
CountryCanada
CityVancouver, BC
Period11/12/1011/18/10

Fingerprint

Vibrations (mechanical)
Ultrasonics
Tissue
Shear waves
Transducers
Radiation

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Zheng, Y., Yao, A., Chen, S. D., Urban, M. W., Kinnick, R., & Greenleaf, J. F. (2010). Orthogonal frequency ultrasound vibrometry. In ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE) (Vol. 2, pp. 859-863) https://doi.org/10.1115/IMECE2010-39095

Orthogonal frequency ultrasound vibrometry. / Zheng, Yi; Yao, Aiping; Chen, Shigao D; Urban, Matthew W; Kinnick, Randy; Greenleaf, James F.

ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE). Vol. 2 2010. p. 859-863.

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

Zheng, Y, Yao, A, Chen, SD, Urban, MW, Kinnick, R & Greenleaf, JF 2010, Orthogonal frequency ultrasound vibrometry. in ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE). vol. 2, pp. 859-863, ASME 2010 International Mechanical Engineering Congress and Exposition, IMECE 2010, Vancouver, BC, Canada, 11/12/10. https://doi.org/10.1115/IMECE2010-39095
Zheng Y, Yao A, Chen SD, Urban MW, Kinnick R, Greenleaf JF. Orthogonal frequency ultrasound vibrometry. In ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE). Vol. 2. 2010. p. 859-863 https://doi.org/10.1115/IMECE2010-39095
Zheng, Yi ; Yao, Aiping ; Chen, Shigao D ; Urban, Matthew W ; Kinnick, Randy ; Greenleaf, James F. / Orthogonal frequency ultrasound vibrometry. ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE). Vol. 2 2010. pp. 859-863
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