ArticleThe Journal of the Acoustical Society of America2015
An analytic, Fourier domain description of shear wave propagation in a viscoelastic medium using asymmetric Gaussian sources.
Article in The Journal of the Acoustical Society of America, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.
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Who cites it
31 citing papers in PubMed.
- 3D finite-element study for multi-frequency harmonic shear wave elastography: shear wave speed contrast assessment and experimental verification.Journal of biomechanics · 2025Article
- Shear wave elastography primer for the abdominal radiologist.Abdominal radiology (New York) · 2025Review
- Estimation of the phase velocity dispersion curves for viscoelastic materials using Point Limited Shear Wave Elastography.Ultrasonics · 2025Article
- Quality Assurance of Point and 2D Shear Wave Elastography through the Establishment of Baseline Data Using Phantoms.Sensors (Basel, Switzerland) · 2024Article
- Feasibility of Phase Velocity Imaging Using Multi Frequency Oscillation-Shear Wave Elastography.IEEE transactions on bio-medical engineering · 2024Article
- Merging Single-Track Location Elastographic Imaging with the Frequency Shift Method improves Shear Wave Attenuation Measurements.Frontiers in physics · 2024Article
- Recent advances in optical elastography and emerging opportunities in the basic sciences and translational medicine [Invited].Biomedical optics express · 2023Review
- A review of physical and engineering factors potentially affecting shear wave elastography.Journal of medical ultrasonics (2001) · 2021Review
- Phase Velocity Estimation With Expanded Bandwidth in Viscoelastic Phantoms and Tissues.IEEE transactions on medical imaging · 2021Article
- Multiparametric in vivo ultrasound shear wave viscoelastography on farm-raised fatty duck livers: human radiology imaging applied to food sciences.Poultry science · 2021Article
- Shear wave dispersion as a potential biomarker for cervical remodeling during pregnancy: evidence from a non-human primate model.Frontiers in physics · 2021Article
- Dispersion curve calculation in viscoelastic tissue-mimicking materials using non-parametric, parametric, and high-resolution methods.Ultrasonics · 2021Article
- Viscoelastic Response Ultrasound Derived Relative Elasticity and Relative Viscosity Reflect True Elasticity and Viscosity: In Silico and Experimental Demonstration.IEEE transactions on ultrasonics, ferroelectrics, and frequency control · 2020Article
- Two-Point Frequency Shift Method for Shear Wave Attenuation Measurement.IEEE transactions on ultrasonics, ferroelectrics, and frequency control · 2020Article
- Measurement of Viscoelastic Material Model Parameters Using Fractional Derivative Group Shear Wave Speeds in Simulation and Phantom Data.IEEE transactions on ultrasonics, ferroelectrics, and frequency control · 2020Article
- Ultrasonic liver steatosis quantification by a learning-based acoustic model from a novel shear wave sequence.Biomedical engineering online · 2019Article
- Attenuation Measuring Ultrasound Shearwave Elastography as a Method for Evaluating Pancreatic Viscoelasticity.Biomedical physics & engineering express · 2019Article
- Dispersion in Tissue-Mimicking Gels Measured with Shear Wave Elastography and Torsional Vibration Rheometry.Ultrasound in medicine & biology · 2019Article
- Application of a forward model of axisymmetric shear wave propagation in viscoelastic media to shear wave elastography.The Journal of the Acoustical Society of America · 2018Article
- Fourier-Domain Shift Matching: A Robust Time-of-Flight Approach for Shear Wave Speed Estimation.IEEE transactions on ultrasonics, ferroelectrics, and frequency control · 2018Article
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3 authors.
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Abstract
Recent measurements of shear wave propagation in viscoelastic materials have been analyzed by constructing the two-dimensional Fourier transform (2D-FT) of the spatial-temporal shear wave signal and using an analysis procedure derived under the assumption the wave is described as a plane wave, or as the asymptotic form of a wave expanding radially from a cylindrically symmetric source. This study presents an exact, analytic expression for the 2D-FT description of shear wave propagation in viscoelastic materials following asymmetric Gaussian excitations and uses this expression to evaluate the bias in 2D-FT measurements obtained using the plane or cylindrical wave assumptions. A wide range of biases are observed depending on specific values of frequency, aspect ratio R of the source asymmetry, and material properties. These biases can be reduced significantly by weighting the shear wave signal in the spatial domain to correct for the geometric spreading of the shear wavefront using a factor of x(p). The optimal weighting power p is found to be near the theoretical value of 0.5 for the case of a cylindrical source with R = 1, and decreases for asymmetric sources with R > 1.
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