title: Accurate depth-independent determination of acoustic backscatter coefficients with focused transducers.
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%.
authors.affiliation: Department of Medical Physics, University of Wisconsin, Madison 53706.
authors.forename: T J
authors.initials: TJ
authors.lastname: Hall
authors.forename: E L
authors.initials: EL
authors.lastname: Madsen
authors.forename: J A
authors.initials: JA
authors.lastname: Zagzebski
authors.forename: E J
authors.initials: EJ
authors.lastname: Boote
mesh_terms: D000161:Acoustic Stimulation; D004581:Electronics; D014159:Transducers