The variance of quantitative estimates in shear wave imaging: Theory and experiments

2012 ◽  
Vol 59 (11) ◽  
Author(s):  
T. Deffieux ◽  
J-L Gennisson ◽  
B. Larrat ◽  
M. Fink ◽  
M. Tanter
Keyword(s):  
Shear Wave ◽  
Shear Wave Imaging ◽  
Quantitative Estimates ◽  
Wave Imaging ◽  
Imaging Theory ◽  
Theory And Experiments

FROM THE BOREHOLE WALL INTO THE FORMATION – COMBINING BOREHOLE IMAGES WITH DEEP SHEAR WAVE IMAGING TECHNOLOGY

2019 ◽  
Author(s):  
Stefan Schimschal ◽  
Stephen Fayers ◽  
Nicklas Ritzmann ◽  
Martin Cox ◽  
Iain Whyte
Keyword(s):  
Shear Wave ◽  
Borehole Wall ◽  
Imaging Technology ◽  
Shear Wave Imaging ◽  
Wave Imaging

scholarly journals Natural shear wave imaging using vocal tract vibrations: Introducing vocal passive elastography (V-PE) to thyroid elasticity mapping

2021 ◽  
Vol 118 (2) ◽  
pp. 023702
Author(s):  
Steve Beuve ◽  
Samuel Callé ◽  
Elise Khoury ◽  
Emmanuel Gilles Simon ◽  
Jean-Pierre Remenieras
Keyword(s):  
Shear Wave ◽  
Vocal Tract ◽  
Shear Wave Imaging ◽  
Wave Imaging

A Color-Doppler Shear-Wave-Imaging Phase-reconstruction Method Using Four Color Flow Images

2016 ◽  
Vol 39 (3) ◽  
pp. 172-188
Author(s):  
Naoki Sunaguchi ◽  
Yoshiki Yamakoshi ◽  
Takahito Nakajima
Keyword(s):  
Image Quality ◽  
Shear Wave ◽  
Initial Phase ◽  
Color Doppler ◽  
Reconstruction Method ◽  
Phase Reconstruction ◽  
Color Flow ◽  
Shear Wave Imaging ◽  
Wave Imaging ◽  
Phase Map

This study investigates shear wave phase map reconstruction using a limited number of color flow images (CFIs) acquired with a color Doppler ultrasound imaging instrument. We propose an efficient reconstruction method to considerably reduce the number of CFIs required for reconstruction and compare this method with Fourier analysis-based color Doppler shear wave imaging. The proposed method uses a two-step phase reconstruction process, including an initial phase map derived from four CFIs using an advanced iterative algorithm of optical interferometry. The second step reduces phase artifacts in the initial phase map using an iterative correction procedure that cycles between the Fourier and inverse Fourier domains while imposing directional filtering and total variation regularization. We demonstrate the efficacy of this method using synthetic and experimental data of a breast phantom and human breast tissue. Our results show that the proposed method maintains image quality and reduces the number of CFIs required to four; previous methods have required at least 32 CFIs to achieve equivalent image quality. The proposed method is applicable to real-time shear wave elastography using a continuous shear wave produced by a mechanical vibrator.

Real time quantitative elastography using Supersonic Shear wave Imaging

2010 ◽  
Author(s):  
Mickael Tanter ◽  
Mathieu Pernot ◽  
Gabriel Montaldo ◽  
Jean-Luc Gennisson ◽  
Eric Bavu ◽  
...  
Keyword(s):  
Real Time ◽  
Shear Wave ◽  
Shear Wave Imaging ◽  
Wave Imaging

Suppression of the influence of surface waves on shear wave imaging for buried pipe location

2021 ◽  
pp. 104517
Author(s):  
Shuan Yan ◽  
Hongyong Yuan ◽  
Yan Gao ◽  
Boao Jin ◽  
Lizheng Deng ◽  
...  
Keyword(s):  
Surface Waves ◽  
Shear Wave ◽  
Buried Pipe ◽  
Shear Wave Imaging ◽  
Wave Imaging

Far _ Near Wellbore Fracture Characterization Using High Resolution Borehole Images and Deep Shear Wave Imaging

2020 ◽  
Author(s):  
N. Kerrouche ◽  
A. Alhammadi ◽  
A. AlMershed ◽  
H. Al-Khateeb ◽  
D.N. Tiwary ◽  
...  
Keyword(s):  
High Resolution ◽  
Shear Wave ◽  
Fracture Characterization ◽  
Shear Wave Imaging ◽  
Wave Imaging

Deep Shear Wave Imaging Helps Making Sidetrack Decisions in Fracture-Cave Carbonate Reservoir

2020 ◽  
Author(s):  
Chenglong Wang ◽  
Chengwen Xiao ◽  
Yi Xin ◽  
Wenxing Duan ◽  
Chengsen Zhang ◽  
...  
Keyword(s):  
Shear Wave ◽  
Carbonate Reservoir ◽  
Shear Wave Imaging ◽  
Wave Imaging

scholarly journals Assessment of the mechanical properties of the muscle-tendon unit by supersonic shear wave imaging elastography: a review

2018 ◽  
Vol 37 (1) ◽  
pp. 3-15 ◽  
Author(s):  
Kelly Mônica Marinho e Lima ◽  
José Francisco Silva Costa Júnior ◽  
Wagner Coelho de Albuquerque Pereira ◽  
Liliam Fernandes de Oliveira
Keyword(s):  
Mechanical Properties ◽  
Shear Wave ◽  
Shear Wave Imaging ◽  
Wave Imaging
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