A Transmitter for Diagnostic Imaging—A Progress Report

  • K. Wang
  • H. Shen
  • H. Chang
  • G. Wade
  • K. Su
  • M. Lo
  • S. Elliott


An imaging approach utilizing a scanning-focused-beam and piezoelectric detection possesses the best inherent sensitivity with potential to produce an effective image with the least tissue exposure to ultrasound. A possible embodiment of a system based on this highly-desirable approach is being worked on. The key element is an opto-acoustic transducer (OAT) addressed by light carrying a focus-inducing pattern.

The OAT must be carefully designed and evaluated before construction. Two basic types of OAT structures have been investigated by means of equivalent circuit models and computer simulation, which takes into consideration the dependence of OAT performance on device geometry, amplitude and phase distortions, material properties and operating conditions. The simulations indicate that certain configurations with available materials have the proper characteristics to qualify as candidates for OAT construe tion. Designs for prototype OATs have been made. The construction and testing of the prototypes are initiated.


Elemental Area Transparent Electrode Acoustic Image Acoustical Holography Normalize Peak Intensity 
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.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    P. Green, L. Sch aefer, and A. Macovski, „Considerations for Diagnostic Ultrasonic Imaging,“ in Acoustical Holography, G. Wade, Ed. (Plenum, New York, 1972), Vol. 4, pp. 97 - 111.Google Scholar
  2. 2.
    See, for instance, R. Anderson, „Potential Medical Applications for Ultrasonic Holography,“ in Acoustical Holography, P. Green, Ed. (Plenum, New York, 1974), Vol. 5, pp. 505 - 513.Google Scholar
  3. 3.
    K. Wang and G. Wade, „Comparison of N. Booth, Ed., Acoustical Holography (Plenum, New York, 1975), Vol. 6.Google Scholar
  4. 4.
    G. Wade Ed., Acoustic maging (Plenum, New York, 1976). Vol.4.Google Scholar
  5. 5.
    P. Green, Ed., Acoustical Holography (Plenum, New York,1974), Vol. 5.Google Scholar
  6. 6.
    N. Booth, Ed., Acoustical Holog raphy (plenum, New York, 1975 ), Vol. 6.Google Scholar
  7. 7.
    G. Wade Ed., Acoustic lmaging (plenum, New York, 1976 ).Google Scholar
  8. 8.
    K. Wang and G. Wade, “Comparison of Ideal Performance of Some Real-Time Acoustic Imaging Systems,“ in Journal of Acoustical Society of America, Vol. 56, No. 3, September 1974, pp. 922- 928.Google Scholar
  9. 9.
    B. B. Brendon, „Real Time Acoustical imaging by Means of Liquid Surface Holography,“ Ref. 4, pp. 1 - 9.Google Scholar
  10. 10.
    R. L. Whitman, M. Ahmed, and A. Korpel, „A Progress Report on the Laser Scanned Acoustic Camera,“ Ref. 4, pp. 11 - 32.Google Scholar
  11. 11.
    J. Landry, H. Keyani and G. Wade, „Bragg-Diffraction Imaging: A Potential Technique for Medical Diagnosis and Material Inspection,“ Ref. 4, pp. 127 - 146.Google Scholar
  12. 12.
    P. Green, L. Schaefer, E. Jones and J. Suarez, „A New, High-Performance Ultrasonic Camera System,“ Ref. 5, pp. 493-513.Google Scholar
  13. 13.
    C. Sabet and C. W. Turner, „Parametric Transducer for HighSpeed Real-Time Acoustic Imaging,“ Elec. Let., Vol. 12, No. Jan. 1976, pp. 44, 45.ADSCrossRefGoogle Scholar
  14. 14.
    C. G.Roberts, „Optically Scanned Acoustic Imaging,“ ML Report 2361, Stanford University, Calif., 1974.Google Scholar
  15. 15.
    H. Shen, „Some Design Aspects of a High-Sensitivity Ultrasonic Imaging System,“ Master’s Thesis, University of Houston, Dec., 1975, unpublished.Google Scholar
  16. 16.
    K. Wang and H. Shen, „Design of an Optically Controlled Transducer for Ultrasonic Imaging,“ submitted to Applied Optics.Google Scholar
  17. 17.
    B. A. Auld, R. C. Addison, and D. C. Webb, „Focusing and Scanning of Acoustic Waves in Solids,“ Acoustical Holography, Vol. 2, Metherell & Larmore Ed., Plenum Press, New York (1970), pp. 117 - 132.Google Scholar
  18. 18.
    S. A. Farnow and B. A. Auld, „An Acoustic Phase Plate Imaging Device,“ Acoustical Holography, Vol. 6, N Booth Ed., Plenum Press, New York, (1975), PP. 259-274..Google Scholar
  19. 19.
    I. D. McKinney, „Technique for Vapor Depositing Thin-Film In203/Sn02 Transparent Electrodes,“ Sandia Labs Report No Sc-RR-72079$, (Nov. 1972).Google Scholar
  20. 20.
    Private communication with DaVid B. Fraser. Also see David B. Fraser, “Sputtered Films for Display Devices” Proceedings of IEEE(July 1973 ), pp. 1013 - 1018.Google Scholar
  21. 21.
    D. B. Fraser and H. D. Cook, “Sputter Deposition of Cd1-xZnxsogy, Vol. 11, No. 1, pp. 56 - 59 (1974).Google Scholar

Copyright information

© Springer Science+Business Media New York 1977

Authors and Affiliations

  • K. Wang
    • 1
  • H. Shen
    • 1
  • H. Chang
    • 1
  • G. Wade
    • 2
  • K. Su
    • 2
  • M. Lo
    • 2
  • S. Elliott
    • 2
  1. 1.Dept. of Electrical EngineeringUniversity of HoustonHoustonUSA
  2. 2.Dept. of EECSU.C.S.B.Santa BarbaraUSA

Personalised recommendations