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Journal articles on the topic 'Shear wave imaging'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 June 2024

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1

Fan, Liexiang. "SHEAR WAVE IMAGING." Journal of the Acoustical Society of America 132, no. 6 (2012): 4100. http://dx.doi.org/10.1121/1.4770456.

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2

Yamakoshi, Yoshiki, Mayuko Yamazaki, Toshihiro Kasahara, Naoki Sunaguchi, and Yasushi Yuminaka. "Shear wave transmissivity measurement by color Doppler shear wave imaging." Japanese Journal of Applied Physics 55, no. 7S1 (2016): 07KC08. http://dx.doi.org/10.7567/jjap.55.07kc08.

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3

Archer, Branch T., Yu-Hsuan Chao, John M. Cormack, Kang Kim, Kyle S. Spratt, and Mark F. Hamilton. "Surface excitation of focused shear wave beams in soft elastic media: Theory." Journal of the Acoustical Society of America 152, no. 4 (2022): A46. http://dx.doi.org/10.1121/10.0015489.

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Shear wave propagation is employed in medical ultrasound imaging, because it reveals variation in the viscoelastic properties of tissue. Frequencies below 1 kHz are required for imaging with shear waves in soft tissue due to their high attenuation and low propagation speeds, compared to compressional waves with frequencies above 1 MHz used for ultrasound imaging. Shear waves exhibiting particle motion in the direction of propagation, referred to as longitudinally polarized shear waves, can be generated by applying longitudinal motion of a circular disk to the surface of a soft elastic medium.

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4

Chao, Yu-Hsuan, Branch T. Archer, John M. Cormack, Kang Kim, Kyle S. Spratt, and Mark F. Hamilton. "Surface excitation of focused shear wave beams in soft elastic media: Experiment." Journal of the Acoustical Society of America 152, no. 4 (2022): A46. http://dx.doi.org/10.1121/10.0015490.

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Shear waves are employed in medical imaging to reveal variations in the viscoelastic properties of soft tissues, which are useful biomarkers for pathologies such as breast lesions and liver disease. Shear wave excitation methods that employ acoustic radiation force or surface vibration with a small piston have limitations associated with imaging depth and shear wave amplitude. We introduce a new method for surface excitation of shear waves that employs longitudinal motion of a concave-shaped piston source to generate a focused shear wave beam, thereby increasing shear wave amplitude and penetr

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5

Brum, Javier, Miguel Bernal, Carolina Rabin, Carlos Negreira, and Nicolas Benech. "Shear wave elastography based on noise correlation and time reversal: From 1d to 3d shear elasticity imaging." Journal of the Acoustical Society of America 153, no. 3_supplement (2023): A264. http://dx.doi.org/10.1121/10.0018794.

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Shear wave elastography (SWE) relies on the generation and tracking of coherent shear waves to image soft tissue’s shear elasticity. However, coherent shear wave tracking is not always possible due to scattered or interfering waves that arise from inhomogeneities, muscular activity, heart beating, or external sources. To overcome this limitation, we developed an alternative approach using a complex elastic wave-field. Based on the analogy between time reversal and seismic noise correlation, this complex field is “transformed” into a coherent converging-diverging time-reversal field using spati

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6

Lu, Jian-Yu. "Super-resolution imaging with modulation of point spread function." Journal of the Acoustical Society of America 153, no. 3_supplement (2023): A28. http://dx.doi.org/10.1121/10.0018036.

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The spatial resolution of an imaging system using waves is limited by the spatial bandwidth of the point spread function (PSF) of the system, which is related to the wavelength. However, when the PSF is modulated either in amplitude or phase or in both, the resulting spatial bandwidth of the PSF is increased. In this study, the PSF-modulation method is used to obtain super-resolution imaging of objects and to distinguish wave sources that are closely located in space and are not normally separable due to diffraction limit. In imaging using waves, such as ultrasound, acoustics, optics, electrom

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7

O’Brien, John, and Ron Harris. "Multicomponent VSP imaging of tight-gas sands." GEOPHYSICS 71, no. 6 (2006): E83—E90. http://dx.doi.org/10.1190/1.2335646.

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Low-porosity Bossier and Cotton Valley sands of the East Texas Basin, U. S., have only a small acoustic impedance contrast with the encasing shales but a greater relative contrast in shear-wave impedance. Vertical seismic profile (VSP) data acquired with both a near-offset and far-offset P-wave source clearly demonstrate the P-P reflectivity and P-S mode conversions within the Bossier section. We designate conventional P-wave reflectivity as P-P, shear-wave reflectivity as S-S, and P-wave/shear-wave mode conversion data as P-S. While Bossier P-P reflectivity is low, it appears to be adequate f

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8

Yamakoshi, Yoshiki, Takahito Nakajima, Toshihiro Kasahara, Mayuko Yamazaki, Ren Koda, and Naoki Sunaguchi. "Shear Wave Imaging of Breast Tissue by Color Doppler Shear Wave Elastography." IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control 64, no. 2 (2017): 340–48. http://dx.doi.org/10.1109/tuffc.2016.2626359.

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9

A., Mohammed, Nancy M., and Mohamed I. "A New Shear Wave Speed Estimation Method for Shear Wave Elasticity Imaging." International Journal of Computer Applications 125, no. 8 (2015): 48–53. http://dx.doi.org/10.5120/ijca2015906130.

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10

Ahmed, Rifat, Scott A. Gerber, Stephen A. McAleavey, Giovanni Schifitto, and Marvin M. Doyley. "Plane-Wave Imaging Improves Single-Track Location Shear Wave Elasticity Imaging." IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control 65, no. 8 (2018): 1402–14. http://dx.doi.org/10.1109/tuffc.2018.2842468.

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11

Zhou, Chengyao, Wenjie Yin, Jun Yang, Hongmei Nie, and Xiangyang Li. "Reverse Time Migration Imaging Using SH Shear Wave Data." Applied Sciences 12, no. 19 (2022): 9944. http://dx.doi.org/10.3390/app12199944.

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In this paper, we discussed the reverse time migration imaging of compressional wave (P-wave) and horizontally polarized shear wave (SH shear wave) seismic data, together with P- and SH shear wave constrained velocity model building. In the Sanhu area in Qaidam Basin, there are large areas of gas clouds, which leads to poor P-wave seismic imaging. The P and SH shear wave seismic data of a co-located survey line with the same acquisition geometry were used to access their imaging capability using reverse time migration. We first estimated the change in P-wave and SH shear wave velocity ratio us

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12

Barr, Richard G. "Shear Wave Imaging of the Breast." Journal of Ultrasound in Medicine 31, no. 3 (2012): 347–50. http://dx.doi.org/10.7863/jum.2012.31.3.347.

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13

Gennisson, Jean-luc, Jean Provost, Thomas Deffieux, et al. "4-D ultrafast shear-wave imaging." IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control 62, no. 6 (2015): 1059–65. http://dx.doi.org/10.1109/tuffc.2014.006936.

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14

Ye, Shigong, Junru Wu, and John Peach. "Ultrasound shear wave imaging for bone." Ultrasound in Medicine & Biology 26, no. 5 (2000): 833–37. http://dx.doi.org/10.1016/s0301-5629(00)00214-3.

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15

Archer, Branch T., Yu-hsuan Chao, John M. Cormack, Kang Kim, Kyle S. Spratt, and Mark F. Hamilton. "Longitudinal motion of focused shear wave beams in soft elastic media." Journal of the Acoustical Society of America 153, no. 3 (2023): 1591–99. http://dx.doi.org/10.1121/10.0017434.

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Shear waves are employed in medical ultrasound imaging because they reveal variations in viscoelastic properties of soft tissue. Frequencies below 1 kHz are required due to the substantially higher attenuation and lower propagation speeds than for compressional waves. Shear waves exhibiting particle motion in the direction of propagation, referred to as longitudinal shear waves, can be generated with longitudinal motion of a circular disk on the surface of a soft elastic medium. This approach permits imaging of the longitudinal shear wave with a conventional ultrasound transducer that is coaxi

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16

Nahas, Amir, Mickaël Tanter, Thu-Mai Nguyen, Jean-Marie Chassot, Mathias Fink, and A. Claude Boccara. "From supersonic shear wave imaging to full-field optical coherence shear wave elastography." Journal of Biomedical Optics 18, no. 12 (2013): 121514. http://dx.doi.org/10.1117/1.jbo.18.12.121514.

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17

Park, Jeong Man, Sung Jae Kwon, and Mok Kun Jeong. "Shear wave speed imaging using unfocused plane wave transmission." Biomedical Engineering Letters 3, no. 4 (2013): 242–49. http://dx.doi.org/10.1007/s13534-013-0109-8.

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18

Li, Yu, Qian Lv, Jiayue Dai, Ye Tian, and Jianzhong Guo. "Shear Wave Velocity Estimation Using the Real-Time Curve Tracing Method in Ultrasound Elastography." Applied Sciences 11, no. 5 (2021): 2095. http://dx.doi.org/10.3390/app11052095.

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The estimation of shear wave velocity is very important in ultrasonic shear wave elasticity imaging (SWEI). Since the stability and accuracy of ultrasonic testing equipment have been greatly improved, in order to further improve the accuracy of shear wave velocity estimation and increase the quality of shear wave elasticity maps, we propose a novel real-time curve tracing (RTCT) technique to accurately reconstruct the motion trace of shear wave fronts. Based on the curve fitting of each frame shear wave, the propagation velocity of two-dimensional shear waves can be estimated. In this paper, s

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19

Grube, Sarah, Maximilian Neidhardt, Sarah Latus, and Alexander Schlaefer. "Influence of the Field of View on Shear Wave Velocity Estimation." Current Directions in Biomedical Engineering 8, no. 1 (2022): 42–45. http://dx.doi.org/10.1515/cdbme-2022-0011.

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Abstract Tissue elasticity contains important information for physicians in diagnosis and treatment, and, e.g., can help in tumor detection because tumors are stiffer than healthy tissue. Ultrasound shear wave elastography imaging (US-SWEI) can be used to estimate tissue stiffness by measuring the velocity of induced shear waves. Commonly, a linear US probe is used to track shear waves at a high imaging frequency in 2D. Realtime US-SWEI is limited by the required time for data processing. Hence, reducing the imaging field of view (FOV) is beneficial as it decreases the size of the acquired dat

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20

Drijkoningen, Guy, Nihed el Allouche, Jan Thorbecke, and Gábor Bada. "Nongeometrically converted shear waves in marine streamer data." GEOPHYSICS 77, no. 6 (2012): P45—P56. http://dx.doi.org/10.1190/geo2012-0037.1.

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Under certain circumstances, marine streamer data contain nongeometrical shear body wave arrivals that can be used for imaging. These shear waves are generated via an evanescent compressional wave in the water and convert to propagating shear waves at the water bottom. They are called “nongeometrical” because the evanescent part in the water does not satisfy Snell’s law for real angles, but only for complex angles. The propagating shear waves then undergo reflection and refraction in the subsurface, and arrive at the receivers via an evanescent compressional wave. The required circumstances ar

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21

Jing, Charlie, Thomas A. Dickens, and Graham A. Winbow. "Vector imaging of converted wave data in laterally uniform media with VTI anisotropy." GEOPHYSICS 71, no. 4 (2006): S141—S145. http://dx.doi.org/10.1190/1.2213048.

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A vector imaging method has been developed for PS-converted waves in laterally homogeneous vertically transverse isotropic (VTI) media. It decomposes the converted-wave data into two upgoing quasi-shear waves ([Formula: see text] and [Formula: see text]) within the prestack migration algorithm according to subsurface image and surface receiver locations. Because the decomposition is performed as part of the migration, it is consistent with the dip and polarization of the seismic events, unlike traditional algorithms that use premigration rotations. Two shear-wave images with potentially enhanc

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22

Garcovich, Matteo, Mattia Paratore, Maria Elena Ainora, et al. "Shear Wave Dispersion in Chronic Liver Disease: From Physical Principles to Clinical Usefulness." Journal of Personalized Medicine 13, no. 6 (2023): 945. http://dx.doi.org/10.3390/jpm13060945.

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The development of new applications in ultrasound (US) imaging in recent years has strengthened the role of this imaging technique in the management of different pathologies, particularly in the setting of liver disease. Improved B-mode imaging (3D and 4D), contrast-enhanced US (CEUS) and especially US-based elastography techniques have created the concept of multiparametric ultrasound (MP-US), a term borrowed from radiological sectional imaging. Among the new elastography techniques, shear wave dispersion is a newly developed imaging technology which enables the assessment of the shear waves’

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23

Zemanova, Marketa. "A Diagnostic Imaging Method – Shear Wave Elastography." Current Trends in Ophthalmology 1, no. 1 (2018): 14–22. http://dx.doi.org/10.18314/ctoy.v1i1.148.

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Shear Wave Elastography (SWE) is a non-invasive diagnostic imaging technique, that maps the elastic properties of tissues. Nowadays this modality develops increasingly in medicine across its disciplines and opens a new era of high-quality ultrasound examination because it increases the specificity and thus improves diagnostic assurance. This method is similar to manual palpation, shows elastic properties of biological tissues and provides a kind of reconstruction of the internal structure of soft tissues based on measurement of the response of tissue compression. Results: This method is alread

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24

Zhang, D., and G. M. Crean. "Shear wave imaging for deep nondestructive evaluation." Electronics Letters 27, no. 24 (1991): 2248. http://dx.doi.org/10.1049/el:19911391.

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25

Yamamoto, Atsushi, Yoshiki Yamakoshi, Takashi Ohsawa, et al. "Shear wave velocity measurement of upper trapezius muscle by color Doppler shear wave imaging." Journal of Medical Ultrasonics 45, no. 1 (2017): 129–36. http://dx.doi.org/10.1007/s10396-017-0803-8.

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26

Liu, Zhi-Ying, Ping Zhang, Bi-Xing Zhang, and Wen Wang. "Multi Spherical Wave Imaging Method Based on Ultrasonic Array." Sensors 22, no. 18 (2022): 6800. http://dx.doi.org/10.3390/s22186800.

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The imaging range of traditional plane wave imaging is usually limited by the directivity of the plane wave. In this paper, a multi spherical wave imaging method based on an ultrasonic array is proposed, which radiates both compression and shear waves in a solid medium to form the multi spherical wave. Firstly, excitation characteristics of the multi spherical wave are analyzed theoretically and the calculation method of echo delay of multi spherical wave imaging is derived. Multi spherical wave imaging is compared with conventional ultrasonic plane wave imaging by designing experiments. Compa

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27

Miwa, Takashi, and Yoshiki Yamakoshi. "Anisotropy Evaluation of In Vivo Tissue Elasticity Measurement by Using Wavenumber Filtering." Key Engineering Materials 534 (January 2013): 262–66. http://dx.doi.org/10.4028/www.scientific.net/kem.534.262.

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Tissue elasticity measurements by an ultrasonic wave are a promising technique to qualitative diagnosis of tumor or liver diseases. The elasticity in the soft tissue can quantitatively be estimated by velocity of a shear wave propagating through the tissue. For safer and more accurate estimation of the velocity, an elasticity imaging method using continuous vibration wave excitation has been proposed. This method utilizes wave number vector analysis to individually estimate the velocity of the shear waves generated by multiple reflections. In this paper, applicability of the wave number filter

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28

Granli, John R., Børge Arntsen, Anders Sollid, and Eilert Hilde. "Imaging through gas‐filled sediments using marine shear‐wave data." GEOPHYSICS 64, no. 3 (1999): 668–77. http://dx.doi.org/10.1190/1.1444576.

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Marine multicomponent sea‐floor data of excellent quality have been acquired over the Tommeliten Alpha field. The most dominating wave modes are interpreted to be conventional compressional PP-waves and converted PS-waves. The most important geophysical problem associated with the Tommeliten Alpha field is the presence of a gas chimney obscuring the conventional 3-D seismic image of the reservoir zone. The converted PS-waves effectively undershoot the gas chimney, leading to substantially improved images of the reservoir. Subsequent interpretation indicates the Tommeliten Alpha structure is a

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29

Masud, Abdullah A., and Jingfei Liu. "A Scholte wave based ultrasound elastography method for imaging superficial tissue." Journal of the Acoustical Society of America 153, no. 3_supplement (2023): A265. http://dx.doi.org/10.1121/10.0018798.

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Pathological changes in tissues are often related to changes in tissue mechanical properties, making elastography an important tool for medical applications. Among the existing elastography methods, ultrasound elastography is of great interest due to the inherent advantages of ultrasound imaging technology, such as low cost, portability, safety, and wide availability. However, the current ultrasound elastography methods, including shear wave elastography, can readily image deep tissue but cannot assess superficial tissue. To address this challenge, we proposed an ultrasonic Scholte-wave-based

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30

Wei, Zhou-Tuo, and Xiao-Ming Tang. "Numerical simulation of radiation, reflection, and reception of elastic waves from a borehole dipole source." GEOPHYSICS 77, no. 6 (2012): D253—D261. http://dx.doi.org/10.1190/geo2012-0061.1.

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A recent advance in single-well reflection imaging is the use of a dipole acoustic system in a borehole to radiate and receive elastic waves to and from a remote geologic reflector in formation. This dipole-acoustic imaging technology is evaluated by numerically simulating the radiation and reflection of the wavefield generated by the borehole dipole source and analyzing the receiving sensitivity of the dipole system to the incoming reflected waves. The analyses show that a borehole dipole source can radiate a compressional wave (P-wave) and two types of shear waves (i.e., SV- and SH-waves) in

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31

Song, Pengfei, Matthew W. Urban, Armando Manduca, James F. Greenleaf, and Shigao Chen. "Coded excitation plane wave imaging for shear wave motion detection." IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control 62, no. 7 (2015): 1356–72. http://dx.doi.org/10.1109/tuffc.2015.007062.

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32

MacBeth, Colin, and Stuart Crampin. "Processing of seismic data in the presence of anisotropy." GEOPHYSICS 56, no. 9 (1991): 1320–30. http://dx.doi.org/10.1190/1.1443153.

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Processing techniques for extracting the polarization directions of the fast, and slower split shear waves, together with their traveltime splitting from vector wavefield data, form the basis of prospective procedures for imaging details of the internal structure of subsurface rocks. A recently developed technique involving the independent rotation of the source polarization direction, and geophone axes, provides an effective processing tool for extracting the effects of anisotropy from shear‐wave data. It is theoretically capable of handling nonorthogonal polarization directions of split shea

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33

Yada, Norihisa, Nobuhura Tamaki, Yohei Koizumi, et al. "Diagnosis of Fibrosis and Activity by a Combined Use of Strain and Shear Wave Imaging in Patients with Liver Disease." Digestive Diseases 35, no. 6 (2017): 515–20. http://dx.doi.org/10.1159/000480140.

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Objective: Performing shear wave imaging is simple, but can be difficult when inflammation, jaundice, and congestion are present. Therefore, the correct diagnosis of liver fibrosis using shear wave imaging alone might be difficult in mild-to-moderate fibrosis cases. Strain imaging can diagnose liver fibrosis without the influence of inflammation. Therefore, the combined use of strain and shear wave imaging (combinational elastography) for cases without jaundice and congestion might be useful for evaluating fibrosis and inflammation. Methods: We enrolled consecutive patients with liver disease,

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34

Phan, H. T. "Shear Wave Elastography with Supersonic Shear Imaging of 69 Liver Tumors." Ultrasound in Medicine & Biology 37, no. 8 (2011): S85. http://dx.doi.org/10.1016/j.ultrasmedbio.2011.05.380.

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35

Le Ngal, Nwai, Subagyo Pramumijoyo, Iman Satyarno, Kirbani Sri Brotopuspito, Junji Kiyono, and Eddy Hartantyo. "Multi-channel analysis of surface wave method for geotechnical site characterization in Yogyakarta, Indonesia." E3S Web of Conferences 76 (2019): 03006. http://dx.doi.org/10.1051/e3sconf/20197603006.

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On May 27th 2006, Yogyakarta earthquake happened with 6.3 Mw. It was causing widespread destruction and loss of life and property. The average shear wave velocity to 30 m (Vs30) is useful parameter for classifying sites to predict their potential to amplify seismic shaking (Boore, 2004) [1]. Shear wave velocity is one of the most influential factors of the ground motion. The average shear wave velocity for the top 30 m of soil is referred to as Vs30. In this study, the Vs30 values were calculated by using multichannel analysis of surface waves (MASW) method. The Multichannel Analysis of Surfac

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36

Lewis, Catherine, Thomas L. Davis, and Claude Vuillermoz. "Three‐dimensional multicomponent imaging of reservoir heterogeneity, Silo Field, Wyoming." GEOPHYSICS 56, no. 12 (1991): 2048–56. http://dx.doi.org/10.1190/1.1443017.

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The Reservoir Characterization Project at Colorado School of Mines acquired a three‐dimensional (3-D) multicomponent survey over Silo field in southeastern Wyoming with the objective of imaging reservoir heterogeneity. A 3-D shear‐wave survey resolved spatial variations in the fracture distribution of Niobrara chalks by detecting small percentages of anisotropy induced by fractures in chalks of the Niobrara reservoir. In addition, the compressional‐wave survey imaged structural drape over a zone of deeper salt dissolution, which fractured the brittle chalks. Rotation analysis of the shear‐wave

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Schulz, Marten, Anne-Christin B. Wilde, Münevver Demir, Tobias Müller, Frank Tacke, and Alexander Wree. "Shear wave elastography and shear wave dispersion imaging in primary biliary cholangitis—a pilot study." Quantitative Imaging in Medicine and Surgery 12, no. 2 (2022): 1235–42. http://dx.doi.org/10.21037/qims-21-657.

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38

Parajuli, Raj Kumar, Reisen Tei, Daisuke Nakai, and Yoshiki Yamakoshi. "Shear Wave Imaging Using Phase Modulation Component of Harmonic Distortion in Continuous Shear Wave Excitation." Japanese Journal of Applied Physics 52, no. 7S (2013): 07HF22. http://dx.doi.org/10.7567/jjap.52.07hf22.

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Tamimi, Naser, and Thomas L. Davis. "Imaging the Morrow A Sandstone Using Shear Wave VSP Data, Postle Field, Oklahoma." International Journal of Geophysics 2012 (2012): 1–14. http://dx.doi.org/10.1155/2012/231256.

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Morrow sandstones constitute important oil-producing reservoirs in the Anadarko Basin in the Mid-Continent Region of the USA. Characterization of the Morrow A sandstone reservoir in Postle Field, Texas County, Oklahoma, is challenging due to its small thickness, low acoustic impedance contrast with the surrounding Morrow shale, and lithological heterogeneity. Shear wave data have been documented as a promising solution for imaging the Morrow A sandstone. Vertical seismic profiling (VSP) offers the potential to enhance shear wave imaging of the thin heterogeneous Morrow A sandstone at Postle Fi

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Elmeliegy, Abdelrahman M., and Murthy Guddati. "Full-waveform shear wave elastography for imaging tumors." Journal of the Acoustical Society of America 151, no. 4 (2022): A212. http://dx.doi.org/10.1121/10.0011077.

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Shear wave elastography (SWE) is a method of reconstructing the stiffness of soft biological tissues by matching the observed and the simulated wavefields using an inverse optimization scheme. SWE reconstruction algorithms can be classified into two main categories, local and global methods. Global methods consider more complete physics of the waves, i.e., refraction and scattering, and, thus, have the potential to better characterize the heterogeneity of the domain. These approaches require full-waveform inversion (FWI), which is computationally expensive. More importantly, due to highly nonl

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Faris, Inas H., Juan Melchor, Antonio Callejas, Jorge Torres, and Guillermo Rus. "Viscoelastic Biomarkers of Ex Vivo Liver Samples via Torsional Wave Elastography." Diagnostics 10, no. 2 (2020): 111. http://dx.doi.org/10.3390/diagnostics10020111.

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The clinical ultrasound community demands mechanisms to obtain the viscoelastic biomarkers of soft tissue in order to quantify the tissue condition and to be able to track its consistency. Torsional Wave Elastography (TWE) is an emerging technique proposed for interrogating soft tissue mechanical viscoelastic constants. Torsional waves are a particular configuration of shear waves, which propagate asymmetrically in-depth and are radially transmitted by a disc and received by a ring. This configuration is shown to be particularly efficient in minimizing spurious p-waves components and is sensit

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Venegas, Gabriel R., Yu-hsuan Chao, Kang Kim, and John M. Cormack. "Shear and Scholte wave measurements on surficial intertidal mudflat sediments using medical sonoelastography techniques." Journal of the Acoustical Society of America 154, no. 4_supplement (2023): A165—A166. http://dx.doi.org/10.1121/10.0023146.

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In low-energy environments, the water–sediment interface often contains a dynamic fluffy transition layer (FTL) of suspended organic and inorganic matter, which is transformed by complex physical, biological, and chemical processes. The FTL mechanical properties are important for understanding carbon cycle dynamics and for robust sediment acoustic characterization, but erodibility and size make it difficult to study non-invasively and at sufficient resolution. In medical ultrasound sonoelastography, shear waves are excited within the body either using the acoustic radiation force (ARF) or via

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Wang, Yu, and Jingfeng Jiang. "Influence of Tissue Microstructure on Shear Wave Speed Measurements in Plane Shear Wave Elastography: A Computational Study in Lossless Fibrotic Liver Media." Ultrasonic Imaging 40, no. 1 (2017): 49–63. http://dx.doi.org/10.1177/0161734617719055.

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Shear wave elastography (SWE) has been used to measure viscoelastic properties for characterization of fibrotic livers. In this technique, external mechanical vibrations or acoustic radiation forces are first transmitted to the tissue being imaged to induce shear waves. Ultrasonically measured displacement/velocity is then utilized to obtain elastographic measurements related to shear wave propagation. Using an open-source wave simulator, k-Wave, we conducted a case study of the relationship between plane shear wave measurements and the microstructure of fibrotic liver tissues. Particularly, t

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Nguyen, Thao Thi Phuong, Rie Tanabe-Yamagishi, and Yoshiro Ito. "Rayleigh wave and super-shear evanescent wave excited by laser-induced shock at a soft solid–liquid interface observed by photoelasticity imaging technique." Journal of Applied Physics 131, no. 12 (2022): 123102. http://dx.doi.org/10.1063/5.0081237.

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We investigated laser-induced shock excitation of elastic surface waves at a free surface and a soft solid–liquid interface using a custom-designed photoelasticity imaging technique. Epoxy-resin and pure water were selected as the solid and liquid media. The elastic surface waves were excited via a shock process induced by focusing a single nanosecond laser pulse on the solid surface. To confirm the experimental observations, the roots of the Rayleigh and Stoneley equations were calculated. For a free surface, we present an entire-field observation of elastic surface waves, which includes a su

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Gaiser, James, Hermes Malcotti, Ranjan Dash, James DiSiena та Gary Murphy. "Imaging faults and fractures with the difference of fast and slow shear-wave splitting reflectivity, Δγ^(S): 3D/9C survey in Midland Basin, West Texas, and 3D/3C survey in Washakie Basin, Wyoming". Leading Edge 43, № 3 (2024): 155–64. http://dx.doi.org/10.1190/tle43030155.1.

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One of the most important applications of shear-wave (S-wave) seismic exploration has been in reservoir fracture characterization. While many advancements have been made over the past 30 years to compute and correct for the long-wavelength kinematics of S-wave splitting (SWS) (fast S-wave polarization directions and slow S-wave time delays), practically no progress has been made in imaging the short-wavelength reflectivity of fractures directly with Δγ(S). This property is the contrast in the SWS anisotropy parameter, γ(S), and represents the reflection amplitude at vertical incidence for chan

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Jeng, Geng-Shi, Chia-Lun Yeh, Chia-Lin Lee, Yung-Shao Yang, Ling-Yi Tseng, and Pai-Chi Li. "Ultrasound shear-wave computed tomography for elasticity imaging." Applied Physics Letters 121, no. 4 (2022): 043702. http://dx.doi.org/10.1063/5.0100628.

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Shear-wave elasticity imaging (SWEI) has been routinely used for measuring the elastic properties of tissues. It is potentially applicable to three-dimensional (3D) cell culture systems and may outperform existing methods such as atomic force microscopy and shear rheology in terms of being contactless and having higher spatial resolution and penetration. However, applying clinical SWEI to 3D cell culture systems requires the developments of high-frequency SWEI systems operating at >20 MHz that are compatible with the scale of cell culture systems, and C-scan 3D SWEI well suited to such obse

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Zhang, D., and G. M. Crean. "Acoustic shear wave imaging using an annular lens." Applied Physics Letters 62, no. 3 (1993): 318–20. http://dx.doi.org/10.1063/1.108945.

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Hoyt, Kenneth, and Kevin J. Parker. "SONOELASTOGRAPHIC SHEAR VELOCITY IMAGING USING CRAWLING WAVE EXCITATION." Journal of the Acoustical Society of America 133, no. 3 (2013): 1856. http://dx.doi.org/10.1121/1.4795104.

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Sarvazyan, Armen P. "Method and device for shear wave elasticity imaging." Journal of the Acoustical Society of America 102, no. 4 (1997): 1927. http://dx.doi.org/10.1121/1.419679.

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Badal, Jose, Victor Corchete, G. Payo, L. Pujades, and J. A. Canas. "Imaging of shear-wave velocity structure beneath Iberia." Geophysical Journal International 124, no. 2 (1996): 591–611. http://dx.doi.org/10.1111/j.1365-246x.1996.tb07039.x.

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