ArticleUltrasound in medicine & biology2019
Dispersion in Tissue-Mimicking Gels Measured with Shear Wave Elastography and Torsional Vibration Rheometry.
Article in Ultrasound in medicine & biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Unveiling the rheological secrets of hydrogels: from lab to clinical translation.RSC advances · 2026Review
- Characterizing dispersion in bovine liver using ARFI-based shear wave rheometry.Biomedical physics & engineering express · 2024Article
- External Hardware and Sensors, for Improved MRI.Journal of magnetic resonance imaging : JMRI · 2023Review
- A Quasi-Static Quantitative Ultrasound Elastography Algorithm Using Optical Flow.Sensors (Basel, Switzerland) · 2021Article
- Resonant acoustic rheometry for non-contact characterization of viscoelastic biomaterials.Biomaterials · 2021Article
- Why Are Viscosity and Nonlinearity Bound to Make an Impact in Clinical Elastographic Diagnosis?Sensors (Basel, Switzerland) · 2020Review
- Kelvin-Voigt Parameters Reconstruction of Cervical Tissue-Mimicking Phantoms Using Torsional Wave Elastography.Sensors (Basel, Switzerland) · 2019Article
Corrections and comments
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Authors and funding
3 authors.
Funding
Abstract
Dispersion, or the frequency dependence of mechanical parameters, is a primary confounding factor in elastography comparisons. We present a study of dispersion in tissue-mimicking gels over a wide frequency band using a combination of ultrasound shear wave elastography (SWE), and a novel torsional vibration rheometry which allows independent mechanical measurement of SWE samples. Frequency-dependent complex shear modulus was measured in homogeneous gelatin hydrogels of two different bloom strengths while controlling for confounding factors such as temperature, water content and material aging. Furthermore, both techniques measured the same physical samples, thereby eliminating possible variation caused by batch-to-batch gel variation, sample geometry differences and boundary artifacts. The wide-band measurement, from 1 to 1800 Hz, captured a 30%-50% increase in the storage modulus and a nearly linear increase with frequency of the loss modulus. The magnitude of the variation suggests that accounting for dispersion is essential for meaningful comparisons between SWE implementations.
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Registered trials
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