Assessment of lamb wave dispersion in cornea using shear wave imaging optical coherence tomography (SWI-OCT)

2014 ◽  
Author(s):  
Shang Wang ◽  
Kirill V. Larin
Keyword(s):  
Optical Coherence Tomography ◽  
Shear Wave ◽  
Lamb Wave ◽  
Wave Dispersion ◽  
Optical Coherence ◽  
Shear Wave Imaging ◽  
Wave Imaging ◽  
Imaging Optical Coherence Tomography

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 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 Evaluation of tensile stress in carotid artery: evidence from ultrasonography

2019 ◽  
Author(s):  
Xianghong Luo ◽  
Rong Wu ◽  
Lianfang Du ◽  
Zhaojun Li
Keyword(s):  
Mechanical Properties ◽  
Tensile Stress ◽  
Shear Wave ◽  
Carotid Arteries ◽  
Pearson Correlation ◽  
Shear Wave Elastography ◽  
Wave Dispersion ◽  
Cerebrovascular Diseases ◽  
Shear Wave Imaging ◽  
Wave Imaging

Abstract Background Arterial remodeling reflects adaptation of the vessel wall to mechanical and hemodynamic stimuli and contributes to the progression of cardiovascular and cerebrovascular diseases. Tensile stress (TS) is one of the mechanical properties of the artery wall. We sought to investigate the effects of carotid viscoelasticity on its tensile stress (TS) in different age subjects.Methods Forty-five subjects were recruited and divided into the group1 (≥50 years old) and the group2 (<50 years old) according to the median age. The carotid arteries were examined by ultrasonography, including shear wave elastography (SWE), shear wave dispersion (SWD) and radiofrequency (RF) technologies. The values were obtained, including the carotid elastic modulus (SWE R ) and viscous index (SWD R ), as well as the peak and mean TS of the left and right carotid arteries (L-PTS, R-PTS, L-MTS and R-MTS). The correlations between SWE R , SWD R and tensile stress were investigated, respectively.Results In the group1, the carotid arteries had lower SWE R and SWD R than those in the group2 (SWE R , [10.29±9.57] kPa vs. [17.24±14.07] kPa; SWD R [11.99±3.51] (m/s)/kHz vs. [13.97±3.71] (m/s)/kHz, all P values < 0.05). In addition, the R-PTS was also lower in the group 1 ( P <0.05). Pearson correlation analysis showed that the carotid SWE R was positively correlated with tensile stress. R -values for R-PTS, R-MTS, L-PTS and L-MTS were r =0.218, r =0.359, r =0.209 and r =0.369, respectively (all P <0.05). However, the carotid SWD R was not significantly associated with TS.Conclusion Ultrasonic shear wave imaging could be used to quantitatively assess carotid viscoelasticity. The carotid TS was related to its elasticity while little related to its viscosity, suggesting that mechanical properties of the arterial wall might be better revealed.

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

Application of shear wave imaging and shear wave dispersion ultrasound vibrometry in assessing viscoelastic properties of human thyroid: In vivo pilot study

2013 ◽  
Vol 134 (5) ◽  
pp. 4009-4009 ◽  
Author(s):  
Mohammad Mehrmohammadi ◽  
Pengfei Song ◽  
Carolina A. Carrascal ◽  
Matthew W. Urban ◽  
Matthew R. Callstrom ◽  
...  
Keyword(s):  
Pilot Study ◽  
Shear Wave ◽  
Viscoelastic Properties ◽  
Wave Dispersion ◽  
Human Thyroid ◽  
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

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
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