ULTRASONIC ABSORPTION AND DISPERSION IN BIOLOGICAL MEDIA: A POSTULATED MODEL.

Chabdra M. Sehgal, James F Greenleaf

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

An integrated approach for the absorption of ultrasound by liquids and tissues is proposed from the solution of a one-dimensional wave equation of propagation. The proposed model explains the square and linear power dependence of absorption on frequency for liquids and tissues, respectively. The study also provides a new index, specific heat ratio ( gamma ), in terms of which the physical and the chemical state and thus possibly the pathological state of a tissue can be defined quantitatively.

Original languageEnglish (US)
Pages (from-to)1711-1718
Number of pages8
JournalJournal of the Acoustical Society of America
Volume72
Issue number6
StatePublished - Dec 1982

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ultrasonics
liquids
wave equations
specific heat
propagation
Liquid
Physical
Ultrasound
Heat
Waves
Equations

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

Cite this

ULTRASONIC ABSORPTION AND DISPERSION IN BIOLOGICAL MEDIA : A POSTULATED MODEL. / Sehgal, Chabdra M.; Greenleaf, James F.

In: Journal of the Acoustical Society of America, Vol. 72, No. 6, 12.1982, p. 1711-1718.

Research output: Contribution to journalArticle

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