Acoustic shear wave displacement measurement using ultrasound

Echo ultrasound can be used to detect and measure acoustic shear waves. Earlier it has been shown that a phase contrast based magnetic resonance imaging technique can be used for cyclic shear wave displacement measurement. Echo ultrasound presents an alternate method for imaging of such shear waves....

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Bibliographic Details
Published in1996 IEEE Ultrasonics Symposium. Proceedings Vol. 2; pp. 1185 - 1188 vol.2
Main Authors Dutt, V., Kinnick, R.R., Greenleaf, J.F.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1996
Subjects
Acoustic imaging
Acoustic measurements
Acoustic signal detection
Acoustic waves
Displacement measurement
Frequency estimation
Magnetic resonance imaging
Phase estimation
Ultrasonic imaging
Ultrasonic variables measurement
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Summary:Echo ultrasound can be used to detect and measure acoustic shear waves. Earlier it has been shown that a phase contrast based magnetic resonance imaging technique can be used for cyclic shear wave displacement measurement. Echo ultrasound presents an alternate method for imaging of such shear waves. The ultrasound based method uses the phase of quadrature echo signals to estimate the local displacements due to shear wave propagation and allows for real-time measurement of such displacements. The shear wave displacements were measured in tissue-mimicking gel phantom specimens and beef muscle specimens. From the displacement measurements of propagating waves, it is possible to estimate the local wave speed using local frequency estimation techniques. The wave speeds can be used to characterize the material under investigation in terms of shear modulus and dispersion. These shear wave parameters can thus provide additional tissue characterization tools.
ISBN:0780336151
9780780336155
ISSN:1051-0117
DOI:10.1109/ULTSYM.1996.584202