Demonstration of Complex Shear Wave Patterns in Skeletal Muscle in vivo Using 3D SWEI

Conference Paper

Shear wave elastography imaging (SWEI) of skeletal muscle has previously been used to identify speeds along and across the fibers, with limited success and low repeatability. In this work we show how a tilted configuration can be used to fully characterize muscle as an elastic incompressible TI material using ultrasonic techniques. In the vastus lateralis of a healthy volunteer, a 3D rotational shear wave elastography imaging (SWEI) setup was used to identify shear wave speeds in all directions. Due to the inherent tilt of the muscle fibers relative to the transducer face, multiple shear wave fronts are created. In an elastic incompressible transversely isotropic (TI) material these are the shear vertical (SV) and shear horizontal (SH) mode. By measuring both wave modes and comparing to matched Green's function simulations, this work measures for the first time in vivo all three parameters necessary to fully characterize an elastic incompressible TI material.

Full Text

Duke Authors

Cited Authors

  • Knight, AE; Trutna, CA; Rouze, NC; Hobson-Webb, LD; Palmeri, ML; Caenen, A; Nightingale, KR

Published Date

  • September 7, 2020

Published In

Volume / Issue

  • 2020-September /

Electronic International Standard Serial Number (EISSN)

  • 1948-5727

International Standard Serial Number (ISSN)

  • 1948-5719

International Standard Book Number 13 (ISBN-13)

  • 9781728154480

Digital Object Identifier (DOI)

  • 10.1109/IUS46767.2020.9251599

Citation Source

  • Scopus