Single track location Shear Wave Elasticity Imaging of the liver with reduced propagation windows

Conference Paper

Shear Wave Elasticity Imaging (SWEI) measures the elastic properties of the liver noninvasively, with application to staging liver fibrosis. To make a useful estimate, a shear wave of sufficient amplitude must be generated in the liver. Tracking speckle size determines the distance over which the wave must be tracked, as speckle bias overwhelms estimates made over only a few speckles, but amplitude decays with propagation due to geometric spreading and attenuation. Single-track-location SWEI (STL-SWEI) has shown promise for eliminating speckle bias, and is demonstrated here to yield accurate measurements with reduced propagation windows in an in vivo volunteer study. Transmit focusing for displacement tracking is demonstrated to be important for both MTL-SWEI and STL-SWEI.

Full Text

Duke Authors

Cited Authors

  • Hollender, P; Palmeri, M; Trahey, G

Published Date

  • November 1, 2016

Published In

Volume / Issue

  • 2016-November /

Electronic International Standard Serial Number (EISSN)

  • 1948-5727

International Standard Serial Number (ISSN)

  • 1948-5719

International Standard Book Number 13 (ISBN-13)

  • 9781467398978

Digital Object Identifier (DOI)

  • 10.1109/ULTSYM.2016.7728826

Citation Source

  • Scopus