Fractional derivative models for ultrasonic characterization of polymer and breast tissue viscoelasticity
| Autor: | C. Coussot, S. Kalyanam, Michael F. Insana, Rebecca D. Yapp |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Materials science
Acoustics and Ultrasonics Polymers Models Biological Sensitivity and Specificity Viscoelasticity Article Viscosity Rheology Elastic Modulus Image Interpretation Computer-Assisted Humans Computer Simulation Breast Electrical and Electronic Engineering Instrumentation Elastic modulus Biorheology Reproducibility of Results Image Enhancement Fractional calculus Kelvin–Voigt material Ultrasonic sensor Ultrasonography Mammary Algorithms Biomedical engineering |
| Zdroj: | IEEE transactions on ultrasonics, ferroelectrics, and frequency control. 56(4) |
| ISSN: | 1525-8955 |
| Popis: | The viscoelastic response of hydropolymers, which include glandular breast tissues, may be accurately characterized for some applications with as few as 3 rheological parameters by applying the Kelvin-Voigt fractional derivative (KVFD) modeling approach. We describe a technique for ultrasonic imaging of KVFD parameters in media undergoing unconfined, quasi-static, uniaxial compression. We analyze the KVFD parameter values in simulated and experimental echo data acquired from phantoms and show that the KVFD parameters may concisely characterize the viscoelastic properties of hydropolymers. We then interpret the KVFD parameter values for normal and cancerous breast tissues and hypothesize that this modeling approach may ultimately be applied to tumor differentiation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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