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Theoretical Study of Pulsed Echographic Focusing Procedures

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Acoustical Imaging

Part of the book series: Acoustical Imaging ((ACIM,volume 10))

Abstract

This paper is devoted to a theoretical evaluation of the pulsed echographic response of spherical focusing apertures used in B-scan imagery. Loss-less as well as absorbing medium are investigated. The effects of transducer bandwidth on lateral resolution and side lobe level is studied. The differences observed between the pressure pattern and the complete echographic response pattern is emphasized for well damped and for narrow-band transducers. The influence of a frequency dependant attenuation on these patterns is shown, and an explanation of the defocusing process observed in biological medium [l] is given.

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References

  1. F.S. FOSTER, and J.W. HUNT Transmission of ultrasound beams through human tissue–Focusing and attenuation studies. Ultrasound in Med. and Biol., Vol. 5, 257–269, 1979.

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Author information

Authors and Affiliations

  1. Laboratoire de Mécanique Physique, Université P. et M. Curie, 78210, Saint-Cyr, France

    Mathias Fink

Authors
  1. Mathias Fink
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Editor information

Editors and Affiliations

  1. Henri Beghin Laboratory of Physical Mechanics, University of Paris VI, Saint-Cyr-l’Ecole, France

    Pierre Alais

  2. Department of Radiology, South Bay Hospital, Redondo Beach, California, USA

    Alexander F. Metherell

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© 1982 Plenum Press, New York

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Fink, M. (1982). Theoretical Study of Pulsed Echographic Focusing Procedures. In: Alais, P., Metherell, A.F. (eds) Acoustical Imaging. Acoustical Imaging, vol 10. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-3944-1_30

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  • DOI: https://doi.org/10.1007/978-1-4684-3944-1_30

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4684-3946-5

  • Online ISBN: 978-1-4684-3944-1

  • eBook Packages: Springer Book Archive

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