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Shadowing and enhancement in ultrasonic echograms by reflection and refraction

Shadowing and enhancement in ultrasonic echograms by reflection and refraction The action of reflection and refraction in producing shadows and enhancement in ultrasonic echograms behind cystic structures is well known, but the physical explanations usually used are incomplete. In this paper the emergent beam patterns for a number of cases are plotted and this data used to explain the shadow and enhancement observed. Cases are also illustrated of echoes displayed incorrectly within the shadow region and of reflectors within the shadow region displayed elsewhere. The use of the echographic appearances to assess the velocity of propagation in cystic structures is described. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Clinical Ultrasound Wiley

Shadowing and enhancement in ultrasonic echograms by reflection and refraction

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References (5)

Publisher
Wiley
Copyright
Copyright © 1981 Wiley Periodicals, Inc., A Wiley Company
ISSN
0091-2751
eISSN
1097-0096
DOI
10.1002/jcu.1870090407
Publisher site
See Article on Publisher Site

Abstract

The action of reflection and refraction in producing shadows and enhancement in ultrasonic echograms behind cystic structures is well known, but the physical explanations usually used are incomplete. In this paper the emergent beam patterns for a number of cases are plotted and this data used to explain the shadow and enhancement observed. Cases are also illustrated of echoes displayed incorrectly within the shadow region and of reflectors within the shadow region displayed elsewhere. The use of the echographic appearances to assess the velocity of propagation in cystic structures is described.

Journal

Journal of Clinical UltrasoundWiley

Published: Apr 1, 1981

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