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Warianty tytułu
Języki publikacji
Abstrakty
The aim of this paper is to compare the results of the mathematical modeling and experimental results of the ultrasonic waves scattering in the inhomogeneous dissipative medium. The research was carried out for an artery model (a pipe made of a latex), with internal diameter of 3, 5 and 8 mm and wall thickness of 0.75, 1.25 and 2 mm. The numerical solver was created for calculation of the fields of ultrasonic beams and scattered fields under different boundary conditions, different angles and transversal displacement of ultrasonic beams with respect to the position of the arterial wall. The investigations employed the VED ultrasonic apparatus. The frequency of the transmitted ultrasound was 6.75 MHz. The good agreement between the numerical calculation and experimental results was obtained. The numerical solver is used for verified proposed methods for determining of the IMT in the artery walls.
Słowa kluczowe
Czasopismo
Rocznik
Tom
Strony
449--458
Opis fizyczny
Bibliogr. 9 poz., wykr.
Twórcy
autor
autor
autor
- Ultrasonic Department, Institute of Fundamental Technological Research, Polish Academy of Sciences, jwojcik@ippt.gov.pl
Bibliografia
- 1. T. Powalowski, Z. Trawinski, L. Hilgertner, Archives of Acoustics 28, 325–337, (2003).
- 2. T. Kawasaki, S. Sasayama, S. YagI, T. Asakawa, T. Hirai, Non-invasive assessment of the Age related changes in stiffness of major branches of the human arteries. Cardiovascular Research 21, 678–687, (1987).
- 3. T. Szymonski, M. Lapinski, T. Powalowski, Z. Trawinski, Evaluation of the reproducibility of vascular echo doppler system for the assessment of the carotid artery elasticity. Acta Angiologica 3, 83–91, (1997).
- 4. J. Wojcik, Conservation of energy and absorption in acoustic fields for linear and nonlinear propagation. J. Acoust. Soc. Am. 104, 2654–2663, (1998).
- 5. J. Wojcik, Nonlinear reflection and transmission of plane acoustics waves. Archives of Acoustics 29, 607–632, (2004).
- 6. A. Nowicki, J. Wójcik, W. Secomski, Harmonic Imaging Using Multitone Nonlinear Coding. Ultrasound in Medicine and Biology (2007).
- 7. J. Wojcik, A. Nowicki, P.A. Lewin, P.E. Bloomfield, T. Kujawska, L. Filipczynski†, Wave Envelopes Method for Description of Nonlinear Acoustic Wave Propagation. Ultrasonics 44, 310–329, (2006).
- 8. J. Wojcik, T. Powalowski, R. Tymkiewicz, A. Lamers, Z. Trawinski, Scattering of ultrasonic wave on a model of the artery. Archives of Acoustics 31. 4, 471–479,(2006).
- 9. T. Powalowski, J. Wojcik, Z. Trawinski, Numerical solver of acoustic field in simulation of artery wall thickness examinations. Hydroacoustics Vol.10. 163-168, (2007).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BWMA-0018-0039