ArticleThe Journal of the Acoustical Society of America2008
Negative dispersion in bone: the role of interference in measurements of the apparent phase velocity of two temporally overlapping signals.
Article in The Journal of the Acoustical Society of America, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Clinical Devices for Bone Assessment.Advances in experimental medicine and biology · 2022Review
- Mechanisms of Interaction of Ultrasound With Cancellous Bone: A Review.IEEE transactions on ultrasonics, ferroelectrics, and frequency control · 2020Review
- Conventional, Bayesian, and Modified Prony's methods for characterizing fast and slow waves in equine cancellous bone.The Journal of the Acoustical Society of America · 2015Article
- Nonlinear attenuation and dispersion in human calcaneus in vitro: statistical validation and relationships to microarchitecture.The Journal of the Acoustical Society of America · 2015Article
- Cancellous bone fast and slow waves obtained with Bayesian probability theory correlate with porosity from computed tomography.The Journal of the Acoustical Society of America · 2012Article
- Determining attenuation properties of interfering fast and slow ultrasonic waves in cancellous bone.The Journal of the Acoustical Society of America · 2011Article
- Quantitative photoacoustic imaging: correcting for heterogeneous light fluence distributions using diffuse optical tomography.Journal of biomedical optics · 2011Article
- Multi-frequency characterization of the speed of sound and attenuation coefficient for longitudinal transmission of freshly excised human skulls.Physics in medicine and biology · 2011Article
- Inverse problems in cancellous bone: estimation of the ultrasonic properties of fast and slow waves using Bayesian probability theory.The Journal of the Acoustical Society of America · 2010Article
- Cancellous bone analysis with modified least squares Prony's method and chirp filter: phantom experiments and simulation.The Journal of the Acoustical Society of America · 2010Article
- Decomposition of two-component ultrasound pulses in cancellous bone using modified least squares prony method--phantom experiment and simulation.Ultrasound in medicine & biology · 2010Article
- The dependencies of phase velocity and dispersion on volume fraction in cancellous-bone-mimicking phantoms.The Journal of the Acoustical Society of America · 2009Article
- Bone sonometry: reducing phase aberration to improve estimates of broadband ultrasonic attenuation.The Journal of the Acoustical Society of America · 2009Article
- Interference between wave modes may contribute to the apparent negative dispersion observed in cancellous bone.The Journal of the Acoustical Society of America · 2008Article
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
In this study the attenuation coefficient and dispersion (frequency dependence of phase velocity) are measured using a phase sensitive (piezoelectric) receiver in a phantom in which two temporally overlapping signals are detected, analogous to the fast and slow waves typically found in measurements of cancellous bone. The phantom consisted of a flat and parallel Plexiglas plate into which a step discontinuity was milled. The phase velocity and attenuation coefficient of the plate were measured using both broadband and narrowband data and were calculated using standard magnitude and phase spectroscopy techniques. The observed frequency dependence of the phase velocity and attenuation coefficient exhibit significant changes in their frequency dependences as the interrogating ultrasonic field is translated across the step discontinuity of the plate. Negative dispersion is observed at specific spatial locations of the plate at which the attenuation coefficient rises linearly with frequency, a behavior analogous to that of bone measurements reported in the literature. For all sites investigated, broadband and narrowband data (3-7 MHz) demonstrate excellent consistency. Evidence suggests that the interference between the two signals simultaneously reaching the phase sensitive piezoelectric receiver is responsible for this negative dispersion.
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