Moving beam shear wave reconstruction for both ultrasound and optical coherence tomography applications

Bao Yu Hsieh, Shaozhen Song, Thu Mai Nguyen, Soon Joon Yoon, Ruikang Wang, Matthew O'Donnell, Tueng Shen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Shear wave elasticity imaging can quantitatively estimate a stiffness map of biological tissues based on speckle-tracking shear wave propagation. However, current approaches cannot directly reconstruct elasticity properties in speckle-less or speckle-free regions, for example within the crystalline lens in ophthalmology. We propose an imaging sequence to reconstruct the elastic properties in speckle-free regions by sequentially launching shear waves with a laterally moving acoustic radiation force, and then detecting the displacement at a specific speckle-generating position. The imaging sequence was tested for both ultrasound and phase-sensitive optical coherence tomography imaging. Tissue-mimicking phantom studies were performed and results demonstrate that elastic properties can be imaged in speckle-free regions. This suggests that the method can potentially map the elasticity of the crystalline lens.

Original languageEnglish
Title of host publication2015 IEEE International Ultrasonics Symposium, IUS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479981823
DOIs
StatePublished - 13 11 2015
Externally publishedYes
EventIEEE International Ultrasonics Symposium, IUS 2015 - Taipei, Taiwan
Duration: 21 10 201524 10 2015

Publication series

Name2015 IEEE International Ultrasonics Symposium, IUS 2015

Conference

ConferenceIEEE International Ultrasonics Symposium, IUS 2015
Country/TerritoryTaiwan
CityTaipei
Period21/10/1524/10/15

Bibliographical note

Publisher Copyright:
© 2015 IEEE.

Keywords

  • acoustic radiation force
  • crystalline lens
  • moving beam
  • optical coherence elasticity imaging
  • presbyopia

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