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Proposal for Blood-Flow Imaging by Contrast Echo Using Counter-Crossed Beams

  • T. EuraEmail author
  • K. Yoshida
  • Y. Watanabe
  • T. Takayasu
  • K. Nakamura
  • I. Akiyama
Conference paper
Part of the Acoustical Imaging book series (ACIM, volume 30)

Abstract

We propose a new contrast-echo method using counter-crossed beams of two ultrasonic frequencies as an ultrasound diagnostic for cancer. We call this the Counter-Cross Beam Contrast-Echo (C-CBCE) method. Sum and difference frequency components derived from nonlinear vibration of the contrast agents (microbubbles) driven by dual-frequency ultrasound are used in the C-CBCE method. In this study, we used Sonazoid microbubbles as we attempted to detect the sum frequency component generated by Sonazoid fixed in agar gel. We also measured the in-channel flow velocity of the Sonazoid.

Keywords

Contrast-echo method Dual-frequency drive Contrast agents Nonlinear vibration Microbubbles Sum frequency component 

Notes

Acknowledgements

This work was supported by KAKENHI (20300181).

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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • T. Eura
    • 1
    Email author
  • K. Yoshida
    • 2
  • Y. Watanabe
    • 2
  • T. Takayasu
    • 3
  • K. Nakamura
    • 3
  • I. Akiyama
    • 4
  1. 1.Faculty of EngineeringDoshisha UniversityKyotoJapan
  2. 2.Faculty of Life and Medical SciencesDoshisha UniversityKyotoJapan
  3. 3.Department of Electrical and Electronic EngineeringTokyo Institute of TechnologyTokyoJapan
  4. 4.Department of Electrical and Electronic EngineeringShonan Institute of TechnologyFujisawaJapan

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