title: Approximating the acoustic reflection coefficient of lossy biological tissues.
abstract: The amplitude acoustic reflection coefficient of an interface between two lossy biological tissues can be approximated as Rlossy approximately Rlossless + i delta/2 where Rlossless is the lossless acoustic reflection coefficient and delta is the change in alpha/kappa (absorption coefficient per wavenumber) across the tissue interface. This approximation is shown to be valid for both normal and oblique angles of incidence.
authors.affiliation: Department of Radiology and Diagnostic Imaging, Walter C Mackenzic Health Sciences Centre, University of Alberta, Edmoñton, Canada. le@raddi.uah.ualberta.ca
authors.forename: L H
authors.initials: LH
authors.lastname: Le
authors.forename: L J
authors.initials: LJ
authors.lastname: Filipow
mesh_terms: D000162:Acoustics; D008962:Models, Theoretical; D015203:Reproducibility of Results; D014463:Ultrasonography / Q000379:methods*