High speed all optical shear wave imaging optical coherence elastography (Conference Presentation)

2016 ◽  
Author(s):  
Shaozhen Song ◽  
Bao-Yu Hsieh ◽  
Wei Wei ◽  
Tueng Shen ◽  
Matthew O'Donnell ◽  
...  
Keyword(s):  
Shear Wave ◽  
High Speed ◽  
Optical Coherence ◽  
Shear Wave Imaging ◽  
All Optical ◽  
Wave Imaging

From supersonic shear wave imaging to full-field optical coherence shear wave elastography

2013 ◽  
Vol 18 (12) ◽  
pp. 121514 ◽  
Author(s):  
Amir Nahas ◽  
Mickaël Tanter ◽  
Thu-Mai Nguyen ◽  
Jean-Marie Chassot ◽  
Mathias Fink ◽  
...  
Keyword(s):  
Shear Wave ◽  
Shear Wave Elastography ◽  
Optical Coherence ◽  
Full Field ◽  
Shear Wave Imaging ◽  
Wave Imaging

scholarly journals Longitudinal shear wave imaging for elasticity mapping using optical coherence elastography

2017 ◽  
Vol 110 (20) ◽  
pp. 201101 ◽  
Author(s):  
Jiang Zhu ◽  
Yusi Miao ◽  
Li Qi ◽  
Yueqiao Qu ◽  
Youmin He ◽  
...  
Keyword(s):  
Shear Wave ◽  
Longitudinal Shear ◽  
Optical Coherence ◽  
Shear Wave Imaging ◽  
Wave Imaging

scholarly journals Diffuse shear wave imaging: toward passive elastography using low-frame rate spectral-domain optical coherence tomography

2016 ◽  
Vol 21 (12) ◽  
pp. 126013 ◽  
Author(s):  
Thu-Mai Nguyen ◽  
Ali Zorgani ◽  
Maxime Lescanne ◽  
Claude Boccara ◽  
Mathias Fink ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Shear Wave ◽  
Frame Rate ◽  
Spectral Domain ◽  
Optical Coherence ◽  
Shear Wave Imaging ◽  
Wave Imaging ◽  
Low Frame Rate

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.

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