Iterative reconstruction of the ultrasound attenuation coefficient from the backscattered radio-frequency signal

Research output: Contribution to report/book/conference proceedingsIn-proceedings paper

Authors

  • Natalia Ilyina
  • Jeroen Hermans
  • Erik Verboven
  • Koen Van Den Abeele
  • Emiliano D'Agostino
  • Jan D'hooge

Institutes & Expert groups

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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.

Details

Original languageEnglish
Title of host publication2014 IEEE International Ultrasonics Symposium Proceedings
Place of PublicationUnited States
Publication statusPublished - Sep 2014
EventIEEE International Ultrasonics Symposium - Chicago, United States
Duration: 3 Sep 20143 Sep 2014

Conference

ConferenceIEEE International Ultrasonics Symposium
CountryUnited States
CityChicago
Period2014-09-032014-09-03

Keywords

  • attenuation estimation, ultrasound simulation, tissue characterization

ID: 211019