Characterization of Anisotropic Lattice Structured Phantoms Using 3D-Rotational Shear Wave Elasticity Imaging (3D-RSWEI)

Shruthi Srinivasan, Daniel Yoon, Margrethe Ruding, Kevin Eckstein, Ned C. Rouze, Wren E. Wightman, Mark L. Palmeri, David P. Bradway, Derek Y. Chan, Kaden D. Bock, Philip V. Bayly, Kathryn R. Nightingale

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

Abstract

We present a 3D-RSWEI characterization of anisotropic lattice phantoms. Shear wave speeds versus rotational angle were measured while the lattices were submerged in water and after embedding in a softer, isotropic polyvinyl alcohol cryogel. In both cases, shear wave propagation was anisotropic and fit to an ellipse, with faster wave speeds observed along the material symmetry direction. Measured shear wave speeds and shear anisotropy decreased between lattices in water versus embedded in PVA. Linear wave dispersion slopes were higher along versus across the material symmetry direction. Measured speed of sound was higher and acoustic attenuation was lower than that of biological tissue. These results showcase applicability of 3D-RSWEI to characterize novel anisotropic lattice phantoms.

Original languageEnglish
Title of host publicationIEEE Ultrasonics, Ferroelectrics, and Frequency Control Joint Symposium, UFFC-JS 2024 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350371901
DOIs
StatePublished - 2024
Event2024 IEEE Ultrasonics, Ferroelectrics, and Frequency Control Joint Symposium, UFFC-JS 2024 - Taipei, Taiwan, Province of China
Duration: Sep 22 2024Sep 26 2024

Publication series

NameIEEE Ultrasonics, Ferroelectrics, and Frequency Control Joint Symposium, UFFC-JS 2024 - Proceedings

Conference

Conference2024 IEEE Ultrasonics, Ferroelectrics, and Frequency Control Joint Symposium, UFFC-JS 2024
Country/TerritoryTaiwan, Province of China
CityTaipei
Period09/22/2409/26/24

Keywords

  • SWEI
  • anisotropy
  • hydrogel
  • lattice
  • phantom

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