Constructive shearwave interference (CSI): Concept and feasibility

Conference Paper

This paper introduces the design of a constructive shear wave interference (CSI) probe: a hemi-torroid annular mechanical ring array with a center ultrasonic tracking element. The idea is to induce shear wave displacements in a ring, then track the resultant constructively interfering displacement sum at the center. The target application is in sclerotic skin conditions where current ARFI and SWEI methods are SNR limited, and could benefit from large displacements without increasing acoustic exposure. This study demonstrates in simulations and in phantoms the feasibility of using this technique and probe in a range of material stiffnesses to accurately represent the expected shear wave speed (SWS). Finally, the results were validated against a custom Siemens S3000 STL SWEI sequence to show the accuracy of CSI speed reconstruction.

Full Text

Duke Authors

Cited Authors

  • Knight, A; Hollender, P; Shashikumar, N; Nightingale, K; Palmeri, M

Published Date

  • October 31, 2017

Published In

Electronic International Standard Serial Number (EISSN)

  • 1948-5727

International Standard Serial Number (ISSN)

  • 1948-5719

International Standard Book Number 13 (ISBN-13)

  • 9781538633830

Digital Object Identifier (DOI)

  • 10.1109/ULTSYM.2017.8092564

Citation Source

  • Scopus