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Acoustic backscattering from ultrasonically tissuelike media
Author(s) -
Insana Michael F.,
Zagzebski James A.,
Madsen Ernest L.
Publication year - 1982
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.595194
Subject(s) - backscatter (email) , attenuation , materials science , attenuation coefficient , optics , ultrasound , range (aeronautics) , acoustics , physics , composite material , telecommunications , computer science , wireless
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.