Tissue Attenuation Estimation Based on Standard Ultrasonographic Data

Abstract

Space-variant ultrasound attenuation in tissue is one of the phenomena that should be taken into account when reconstructing images from ultrasonographic data. This contribution presents a method to estimate automatically one-dimensional attenuation profiles along isolated "rays", forming ultrasonic images. The estimates are based entirely on digital ultrasonographic data, without any reference to a-priori knowledge on anatomical structures involved. Using a standard model of ultrasound propagation, the "layered" and discretised formulation allowed for simplified, thus manageable, least-squares-error estimation of the attenuation profiles. The results of analyzing ultrasonographic data obtained from biological objects, as presented on figures, are rather promising.

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Document Details

Document Type
Technical Report
Publication Date
Oct 25, 2001
Accession Number
ADA412367

Entities

People

  • Antonin Misek
  • Jiri Jan

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Amplitude
  • Attenuation
  • Biomedical Engineering
  • Coefficients
  • Computations
  • Czech Republic
  • Delphi Method
  • Engineering
  • Frequency
  • Mathematical Models
  • Models
  • Radio Frequency
  • Republic
  • Specular Reflection
  • Standards
  • Ultrasounds

Readers

  • Computational Modeling and Simulation
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Medical Imaging.

Technology Areas

  • Space