Numerical Techniques for Modeling Ultrasound Systems
The relationship between the electrical output signal from an ultrasound pulse-echo system and the features of the reflecting structure or interface is complex, yet the ability to model the complete electro-acoustic interaction between an ultrasound system and a reflecting structure is essential for the development of quantitative ultrasound measurement techniques. A number of variables affect the electrical output signal: i) parameters of the transmitting and receiving transducers (geometry, aperture size, frequency response and excitation signal), ii) properties of the medium (density, speed of sound, absorption and scattering), and iii) features of the reflecting structure (size, shape, surface characteristics, orientation, and location).
KeywordsAttenuation Convolution Acoustics Huygens Lewin
Unable to display preview. Download preview PDF.
- 5.R. Lerch, H. Landes, and H.T. Karman, Finite element modeling of the pulse-echo behavior of ultrasound transducers, Ultrasonics Symp Proc, Cannes, France, Nov. 1994, 1021.Google Scholar
- 10.P.C. Pedersen and D. Orofino, Modeling of received signals from finite reflectors in pulse-echo ultrasound, 1994 IEEE Ultrasonics Symp Proceedings, Cannes, France, Nov. 1994, 1177.Google Scholar
- 13.S.K. Jespersen, P.C. Pedersen, and J.E. Wilhjelm, “Modeling of received signals from interfaces of arbitrary geometry,” 1995 IEEE Ultrasonics Symp Proc, Seattle, WA, Nov. 1995, 1561.Google Scholar
- 14.P.C. Pedersen and S.K. Jespersen, “The diffraction response interpolation method. Part I: Theoretical foundation,” submitted to IEEE Trans UFFC, 1996.Google Scholar
- 15.S.K. Jespersen, P.C. Pedersen and J.E. Wilhjelm, “The diffraction response interpolation method. Part II: Implementation and results,” submitted to IEEE Trans UFFC, August, 1996.Google Scholar