Effect of ultrasound acoustic characteristics in cattle liver under ultrasound exposure

Kawan Soetanto, Yoshifumi Saisu, Motoyoshi Okujima

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The effects of ultrasound exposure on the living body can be divided into thermal and non-thermal effects. In this study, the thermal effect was considered and temperature elevation due to ultrasound exposure was examined. First, experimental apparatus for measurement of temperature elevation was considered. Then, fundamental experiments to record the thermal effect of ultrasound waves on different substances were carried out. These included measuring the acoustic characteristics and temperature elevation of degassed water, tissue samples and samples made from agar, having properties similar to those of tissues. It was clarified on noted that the attenuation constant of tissue decreases after ultrasound exposure. Finally, it proposed that the viscosity of a target changes according to ultrasound exposure, and the proposition was investigated experimentally.

Original languageEnglish
Pages (from-to)3228-3232
Number of pages5
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume36
Issue number5 SUPPL. B
Publication statusPublished - 1997 May 1
Externally publishedYes

Keywords

  • Attenuation constant
  • Bioeffects
  • Diagnostic ultrasound
  • Temperature elevation
  • Thermal effect
  • Viscosity

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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