Title: Iterative reconstruction of the ultrasound attenuation coefficient from the backscattered radio-frequency signal
Authors: Ilyina, Natalia
Hermans, Jeroen
Verboven, Erik
Van Den Abeele, Koen
D'Agostino, Emiliano
D'hooge, Jan
Issue Date: 6-Sep-2014
Publisher: IEEE
Host Document: 2014 IEEE International Ultrasonics Symposium Proceedings pages:2406-2409
Conference: IEEE International Ultrasonics Symposium location:Chicago, IL, USA date:03-06 September 2014
Abstract: Accurate estimation of the local acoustic attenuation based on the backscatter signal has several applications, e.g. ultrasound tissue characterization. Most of the existing techniques determine the attenuation coefficient of the tissue directly from the spectrum of the backscattered signal. In these approaches other effects, such as diffraction, that may influence the attenuation estimation should be corrected for. This correction may be impractical in vivo. In the present study the simulation of ultrasound wave propagation was used for the estimation of the attenuation characteristics. Indeed, the local attenuation coefficient was estimated by iteratively solving the forward wave propagation problem and matching the synthetic backscattered signal to the measured one. The proposed methodology was experimentally validated using tissue-mimicking phantoms with different attenuation characteristics showing promising results.
Publication status: published
KU Leuven publication type: IC
Appears in Collections:Cardiovascular Imaging and Dynamics
Physics, Campus Kulak Kortrijk
Physics and Astronomy - miscellaneous

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