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Accurate depth-independent determination of acoustic backscatter coefficients with focused transducers
T J Hall1, E L Madsen, J A Zagzebski
1Department of Medical Physics, University of Wisconsin, Madison 53706.
The Journal of the Acoustical Society of America
|June 1, 1989
Abstract:
The accuracy of a method of data reduction for determining acoustic backscatter coefficients was tested using focused transducers and narrow-band pulses. Two phantoms with well-defined scattering properties were the bases of the tests, one having low attenuation and one with tissue-mimicking attenuation. The experimentally determined backscatter coefficients were found to be independent of transducer-to-scattering-volume distance and to agree very well with theoretical values, typically within 10%.