Dependence of ultrasonic nonlinear parameter B A on fat

R. L. Errabolu, C. M. Sehgal, James F Greenleaf

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

This study deals with the relationship between the magnitude of acoustic nonlinearity, sound speed of tissues and the amount of fat present in them. A two-component model, i.e., nonfat and fat, has been assumed and equations that relate the nonlinear parameter ( B A) of a medium to the properties of its components have been derived for two cases. In the first case, the density and sound speed are the same for the two components; B A is a linear function of fat concentration. To represent this case, mixtures of egg white and yolk were studied. Even though the differences in density and sound speed of the two egg components were within 1 percent of each other, B A showed a deviation from linearity. In the second case, i.e., when the density and sound speed of the two components are not equal, a quadratic equation has been derived using mixture laws. Livers, fats, egg mixtures, and oil data were used to represent this case. B A increased quadratically with fat concentration. The presence of proteins on the binary aqueous/fat mixtures modified the quadratic rule.

Original languageEnglish (US)
Pages (from-to)180-194
Number of pages15
JournalUltrasonic Imaging
Volume9
Issue number3
DOIs
StatePublished - 1987

Fingerprint

fats
Ultrasonics
ultrasonics
Fats
eggs
acoustics
quadratic equations
Egg White
Egg Yolk
liver
Acoustics
linearity
Ovum
oils
nonlinearity
proteins
deviation
Liver
Proteins

Keywords

  • Fat
  • nonlinear parameter B A
  • sound speed
  • ultrasound

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Acoustics and Ultrasonics

Cite this

Dependence of ultrasonic nonlinear parameter B A on fat. / Errabolu, R. L.; Sehgal, C. M.; Greenleaf, James F.

In: Ultrasonic Imaging, Vol. 9, No. 3, 1987, p. 180-194.

Research output: Contribution to journalArticle

Errabolu, R. L. ; Sehgal, C. M. ; Greenleaf, James F. / Dependence of ultrasonic nonlinear parameter B A on fat. In: Ultrasonic Imaging. 1987 ; Vol. 9, No. 3. pp. 180-194.
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