Shear wave generation with steered ultrasound push beams

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

Abstract

Elasticity imaging is becoming established as a means of assisting in diagnosis of certain diseases. Shear wave-based methods have been developed to perform elasticity measurements in soft tissue. We propose a novel method that uses steered push beams (SPB) that can be applied for beam formation for shear wave generation. In SPB methods we use unfocused beams that are steered at specific angles. The interaction of these steered beams causes shear waves to be generated in more of a random nature than conventional methods. We designed an optimization scheme for designing different configurations. We tested these configurations in elastic phantoms along and compared with results with measurements made with Comb push Ultrasound Shear Elastography (CUSE). The SPB method provides a flexible method to obtain shear wave speed maps with high depth-of-field.

Original languageEnglish (US)
Title of host publicationIEEE International Ultrasonics Symposium, IUS
PublisherIEEE Computer Society
Pages647-650
Number of pages4
ISBN (Print)9781479970490
DOIs
StatePublished - Oct 20 2014
Event2014 IEEE International Ultrasonics Symposium, IUS 2014 - Chicago, United States
Duration: Sep 3 2014Sep 6 2014

Other

Other2014 IEEE International Ultrasonics Symposium, IUS 2014
CountryUnited States
CityChicago
Period9/3/149/6/14

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Keywords

  • axicon
  • CUSE
  • Shear wave

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

Cite this

Nabavizadeh, A., Song, P., Chen, S. D., Greenleaf, J. F., & Urban, M. W. (2014). Shear wave generation with steered ultrasound push beams. In IEEE International Ultrasonics Symposium, IUS (pp. 647-650). [6931849] IEEE Computer Society. https://doi.org/10.1109/ULTSYM.2014.0159