Acoustic backscattering from ultrasonically tissuelike media

Michael Insana, James A. Zagzebski, Ernest L. Madsen

Research output: Contribution to journalArticle

Abstract

The acoustic backscattering coefficients of a tissue-mimicking (TM) material have been measured using a modified Sigelmann-Reid technique in order to assess the similarity of its acoustic properties to those of soft tissues. A simple reference scatter material was used to probe the strengths and the limitations of the measurement technique. Backscatter coefficients measured from the TM material exhibit a frequency dependence of the form f(m) in the range 1.0-8.0 MHz where 3.5≤m≤3.8. The backscatter coefficient is also found to be approximately proportional to the particle concentration in the TM material up to concentrations that yield an attenuation coefficient of 0.9 db/cm/MHz. Comparisons of backscatter coefficients measured from the TM material are made with published values for liver, myocardium, and blood.

Original languageEnglish (US)
Pages (from-to)848-855
Number of pages8
JournalMedical Physics
Volume9
Issue number6
DOIs
StatePublished - Nov 1982
Externally publishedYes

Keywords

  • acoustic measurements
  • attenuation
  • backscattering
  • blood
  • dosimetry
  • liver
  • myocardium
  • phantoms
  • tissue−equivalent materials
  • ultrasonic waves

ASJC Scopus subject areas

  • Biophysics
  • Radiology Nuclear Medicine and imaging

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