A model for the propagation and scattering of ultrasound in tissue

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    Abstract

    An inhomogeneous wave equation is derived describing propagation and scattering of ultrasound in an inhomogeneous medium. The scattering term is a function of density and propagation velocity perturbations. The integral solution to the wave equation is combined with a general description of the field from typical transducers used in clinical ultrasound to yield a model for the received pulse-echo pressure field. Analytic expressions are found in the literature for a number of transducers, and any transducer excitation can be incorporated into the model. An example is given for a concave, nonapodized transducer in which the predicted pressure field is compared to a measured field.
    Original languageEnglish
    JournalAcoustical Society of America. Journal
    Volume89
    Issue number1
    Pages (from-to)182-190
    ISSN0001-4966
    DOIs
    Publication statusPublished - 1991

    Bibliographical note

    Copyright (1991) Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America.

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