ArticlePhysics in medicine and biology2014
Ultra wideband (0.5-16 kHz) MR elastography for robust shear viscoelasticity model identification.
Article in Physics in medicine and biology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
11 citing papers in PubMed.
- Quantifying uniaxial prestress and waveguide effects on dynamic elastography estimates for a cylindrical rod.The Journal of the Acoustical Society of America · 2023Article
- Recent advances in optical elastography and emerging opportunities in the basic sciences and translational medicine [Invited].Biomedical optics express · 2023Review
- MR elastography: Principles, guidelines, and terminology.Magnetic resonance in medicine · 2021Review
- 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
- An investigation into the relationship between inhomogeneity and wave shapes in phantoms and ex vivo skeletal muscle using Magnetic Resonance Elastography and finite element analysis.Journal of the mechanical behavior of biomedical materials · 2019Article
- Analytical solution for converging elliptic shear wave in a bounded transverse isotropic viscoelastic material with nonhomogeneous outer boundary.The Journal of the Acoustical Society of America · 2018Article
- Characterization of Viscoelastic Materials Using Group Shear Wave Speeds.IEEE transactions on ultrasonics, ferroelectrics, and frequency control · 2018Article
- Cardiac MR elastography of the mouse: Initial results.Magnetic resonance in medicine · 2016Article
- Scattering and Diffraction of Elastodynamic Waves in a Concentric Cylindrical Phantom for MR Elastography.IEEE transactions on bio-medical engineering · 2016Article
- Mechanical analysis of an axially symmetric cylindrical phantom with a spherical heterogeneity for MR elastography.Physics in medicine and biology · 2016Article
- Interplatform reproducibility of liver and spleen stiffness measured with MR elastography.Journal of magnetic resonance imaging : JMRI · 2016Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
Abstract
Changes in the viscoelastic parameters of soft biological tissues often correlate with progression of disease, trauma or injury, and response to treatment. Identifying the most appropriate viscoelastic model, then estimating and monitoring the corresponding parameters of that model can improve insight into the underlying tissue structural changes. MR Elastography (MRE) provides a quantitative method of measuring tissue viscoelasticity. In a previous study by the authors (Yasar et al 2013 Magn. Reson. Med. 70 479-89), a silicone-based phantom material was examined over the frequency range of 200 Hz-7.75 kHz using MRE, an unprecedented bandwidth at that time. Six viscoelastic models including four integer order models and two fractional order models, were fit to the wideband viscoelastic data (measured storage and loss moduli as a function of frequency). The 'fractional Voigt' model (spring and springpot in parallel) exhibited the best fit and was even able to fit the entire frequency band well when it was identified based only on a small portion of the band. This paper is an extension of that study with a wider frequency range from 500 Hz to 16 kHz. Furthermore, more fractional order viscoelastic models are added to the comparison pool. It is found that added complexity of the viscoelastic model provides only marginal improvement over the 'fractional Voigt' model. And, again, the fractional order models show significant improvement over integer order viscoelastic models that have as many or more fitting parameters.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.