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Considerations for Diagnostic Ultrasonic Imaging

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Acoustical Holography

Abstract

It is becoming increasingly apparent that ultrasonic imaging (focused and holographic) will develop into a useful tool for diagnostic medicine. In this paper we examine the benefits to be derived with this application, particularly as they compare to the results obtainable with currently-used techniques of diagnostic ultrasonics.

A list of performance requirements for a practical, general purpose diagnostic imager is set forth. Among the factors considered are frame rate, sensitivity, resolution, mode of operation (transmission, backscatter), and physical configuration.

In general, ultrasonic images formed of planes within internal organs will suffer degradation due to the inhomogeneous tissue surrounding the plane of interest. The results of an experimental study of this problem are presented. The effects examined are loss of contrast, nonuniform insonification, distortion, and the creation of false detail. Comparisons are made of images produced by transmission and by backscatter of ultrasonic waves. Images of excised organs are presented to illustrate these phenomena.

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References

  1. P. S. Green, “A New Liquid-Surface-Relief Method of Acoustic Image Conversion,” in Acoustical Holography, Vol. 3, A. F. Metherell, ed., Plenum Press, New York, pp. 173–187 (1971).

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  2. F. Dunn, “Ultrasonic Absorption by Biological Materials,” in Ultrasonic Energy, E. Kelly, ed., University of Illinois Press, Urbana, Illinois, pp. 51–65 (1965).

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  3. P. S. Green, “Methods of Acoustic Visualization,” Internat. J. Nondestr. Test., (1):1–27 (1969).

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  4. G.E.P.M. Van Venrooij, “Measurement of Ultrasound Velocity in Tissue,” Ultrasonics, 9:240–242 (1971).

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Author information

Authors and Affiliations

  1. Stanford Research Institute, Menlo Park, California, 94025, USA

    Philip S. Green, Louis F. Schaefer & Albert Macovski

Authors
  1. Philip S. Green
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  2. Louis F. Schaefer
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  3. Albert Macovski
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Editor information

Editors and Affiliations

  1. Department of Electrical Engineering, University of California, Santa Barbara, California, USA

    Glen Wade

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© 1972 Plenum Press, New York

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Cite this paper

Green, P.S., Schaefer, L.F., Macovski, A. (1972). Considerations for Diagnostic Ultrasonic Imaging. In: Wade, G. (eds) Acoustical Holography. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-8213-7_6

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  • DOI: https://doi.org/10.1007/978-1-4615-8213-7_6

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4615-8215-1

  • Online ISBN: 978-1-4615-8213-7

  • eBook Packages: Springer Book Archive

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