Two-dimensional shear elasticity imaging using external mechanical vibration

Heng Zhao, Pengfei Song, Armando Manduca, Randall R. Kinnick, Matthew W. Urban, James F. Greenleaf, Shigao Chen, Stefan Catheline

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

2 Scopus citations

Abstract

Compared to ultrasound radiation force, mechanical vibration is capable of delivering larger motion into deep tissues. However, the propagation direction of the shear waves generated by such method can be complicated and unpredictable, which make it difficult to measure shear wave speed (c s). In this study, we propose using multiple vibration sources to produce a multi-directional shear wave field, and calculating a two-dimensional (2D) cs map based on cross-correlation after applying directional filtering to the field. The proposed method is tested using homogeneous and inclusion phantoms as well as in vivo liver in a healthy subject. Results show that the method has good penetration, boundary delineation, and consistent elasticity measurement.

Original languageEnglish (US)
Title of host publication2013 IEEE International Ultrasonics Symposium, IUS 2013
Pages1256-1259
Number of pages4
DOIs
StatePublished - Dec 1 2013
Event2013 IEEE International Ultrasonics Symposium, IUS 2013 - Prague, Czech Republic
Duration: Jul 21 2013Jul 25 2013

Publication series

NameIEEE International Ultrasonics Symposium, IUS
ISSN (Print)1948-5719
ISSN (Electronic)1948-5727

Other

Other2013 IEEE International Ultrasonics Symposium, IUS 2013
CountryCzech Republic
CityPrague
Period7/21/137/25/13

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Keywords

  • Directional filter
  • Mechanical vibration
  • Shear wave speed

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

Cite this

Zhao, H., Song, P., Manduca, A., Kinnick, R. R., Urban, M. W., Greenleaf, J. F., Chen, S., & Catheline, S. (2013). Two-dimensional shear elasticity imaging using external mechanical vibration. In 2013 IEEE International Ultrasonics Symposium, IUS 2013 (pp. 1256-1259). [6725156] (IEEE International Ultrasonics Symposium, IUS). https://doi.org/10.1109/ULTSYM.2013.0321