shear wave


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shear wave

A seismic body wave that shakes the ground perpendicularly to the direction in which the wave is moving.
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Shear wave elastography (SWE) is a non-invasive method for measuring tissue elasticity whereby a quantitative estimate is provided of the elasticity of various soft tissues.
Quantitative shear wave ultrasound elastography: initial experience in solid breast masses.
Scientists report that their research shows that Earth's inner core is solid -- a finding made possible by a new method for detecting shear waves, or 'J waves' in the inner core.
where [V.sub.11], [V.sub.22], [V.sub.33] are compression wave velocities measured in the directions 1-1', 2-2', 3-3'; [V.sub.12] and [V.sub.13] are shear wave velocities measured in the direction 1-1' with PVs in the directions 2-2', 3-3'; [V.sub.21], [V.sub.23] - in the direction 2-2' with the PVs of the shear wave in the directions 1-1', 3-3'; [V.sub.31], [V.sub.32] - in the direction 3-3' with the PVs in the directions 1-1', 2-2', respectively (Fig.
As cancerous tissue is stiffer than normal tissue, shear waves are slowed as they pass through a tumour and show up on a scan.
A comparison of strain and shear wave ultrasound elastography in differentiating benign and malignant breast lesions was done by Chang JM et al (15)and their results concluded that strain ultrasound elastography is more specific 93.7% and less sensitive 81.7%.
Newer ARFI models can be used to measure shear wave velocity, which is inversely proportional to tissue elasticity, providing a means of numerical data collection.
His papers were credited with demonstrating the generation of shear waves by artificial sources in a borehole; at the time this was a fundamentally surprising result.
The predominant frequency (Fr), shear wave velocity (Vs) of the different soil layers, and the depth of the soil-rock interface are three important parameters in the characterization of physical and dynamic properties of soils to know the urban seismic hazards in Ica.
Fu, "Elastic modulus of muscle and tendon with shear wave ultrasound elastography: variations with different technical settings," PLoS One, vol.