Direction-independent bulk shear wave speed in 3D

Natural shear waves in the neonatal brain potentially provide more information about mechanical properties of the brain in healthy and diseased state. Since these shear waves can be omnipresent, a direction-independent method to determine the propagation speeds of these shear waves is needed. In thi...

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Bibliographic Details
Published in2019 IEEE International Ultrasonics Symposium (IUS) pp. 209 - 212
Main Authors Kortenbout, A. Jorinde, Keijzer, Lana B.H., Jong, Nico de, Bosch, Johan G., Vos, Hendrik J.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2019
Subjects
k-domain
natural shear waves
neonatal brain
Pediatrics
Phantoms
Probes
Shear wave elastography
three-dimensional
Three-dimensional displays
Two dimensional displays
Ultrasonic imaging
Ultrasonic variables measurement
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Summary:Natural shear waves in the neonatal brain potentially provide more information about mechanical properties of the brain in healthy and diseased state. Since these shear waves can be omnipresent, a direction-independent method to determine the propagation speeds of these shear waves is needed. In this study, we developed a direction-independent 3D wavenumber-frequency-domain technique to estimate the shear wave propagation speeds. Furthermore, a dominant propagation direction of the shear waves can potentially be determined with this technique. Measurements were performed in a homogeneous bulk phantom. The obtained results show a good agreement with the propagation speeds obtained with a Radon transform applied on 2D measurements and a clinical system with an elasticity mode.
ISSN:1948-5727
DOI:10.1109/ULTSYM.2019.8925636