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Measurement of Acoustic Impedance of Skin

  • I. Ogura
  • T. Kidokoro
  • K. Iinuma
  • Y. Takehara
  • K. Tanaka
  • A. Matsuda

Abstract

It is important to know the characteristics of the acoustic impedance of a living tissue in order to diagnose with ultrasonic equipment or to design the equipment. Especially, in the immersion method of ultrasonic diagnosis, if strong reflections are produced from mis-matched interface between the skin and the water-bag and that between transducer and water, reverberations occur. The echo from the deep portion of body is disturbed by the reverberation and the strong echo from the mis-matched interface between the skin and the water-bag masks the weak echo from just under the skin. In these cases, it is difficult to make the diagnosis from the echo.

Keywords

Reflection Coefficient Acoustic Impedance Adhesive Disk Ultrasonic Equipment Ultrasonic Diagnosis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    J. Saneyoshi et al., “Tyoonpa-binran (Ultrasound Technology Handbook)”, Nikkankoogyo, p.1202, 1968Google Scholar
  2. 2.
    Tokyo Observatory (edition), “Rika-nepyo (Science yearbook)”, Maruzen, physics, p.22, 1971Google Scholar

Copyright information

© American Institute of Ultrasound in Medicine and Plenum Press, New York 1978

Authors and Affiliations

  • I. Ogura
    • 1
  • T. Kidokoro
    • 1
  • K. Iinuma
    • 1
  • Y. Takehara
    • 2
  • K. Tanaka
    • 2
  • A. Matsuda
    • 3
  1. 1.Toshiba Research and Development CenterKanagawaJapan
  2. 2.Kanto Central HospitalSetagaya, TokyoJapan
  3. 3.Ibaraki Central HospitalIbarakiJapan

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