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Ultrasonic Blood Characterization

  • M. Boynard
  • M. Hanss
Part of the Acoustical Imaging book series (ACIM, volume 10)

Abstract

The scattering coefficient of blood, χ, is usually very low in the MHz range. However, it is significantly increased for blood samples with high sedimentation rate (ESR) values. A detailed account is given on the derivation of χ from A. mode echo-graphic signals.Then, it is related to the organization of the erythrocytes (RBC) in the blood, through a simplified statistical model. The mean number of RBC per aggregate can thus be determined.

Experimental results on the value of the backscattering coefficient are given: correlation with the theoretical model for the hematocrit dependence, studies on high ESR samples, studies on artificially aggregated samples.

Keywords

Pressure Amplitude High Sedimentation Rate Packing Factor Voltage Pulse Amplitude Wave Burst 
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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Copyright information

© Plenum Press, New York 1982

Authors and Affiliations

  • M. Boynard
    • 1
  • M. Hanss
    • 1
  1. 1.Laboratoire de Biophysique — Faculté de MédecineBobignyFrance

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