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Proceedings Paper

Texture In Amplitude Modulated (AM) And Phase Derivative (PD) Echograms
Author(s): Johan M. Thijssen; Bernard J. Oosterveld; R. Leo Romijn
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Paper Abstract

The information about the condition of parenchymal tissues is obscured by the performance characteristics of echographic equipment. The authors investigated by realistic 3-D simulations the so-called beam diffraction effects on two echographic imaging modalities: amplitude modulated (AM) and phase derivative (PD) echograms. Furthermore the modification of the image texture by attenuation was quantified. In order to assess the potentials of statistical analysis of texture for medical diagnostics the effects caused by varying the density of scattering particles in a homogeneous medium were studied. It is concluded, that unless beam diffraction effects are either prevented, or adequately corrected for, quantitative texture analysis is not meaningful. In addition, the data have to be corrected for the non-linear and time dependent amplifier characteristics. Data-acquisition and preprocessing equipment performing these tasks has been developed at the authors' laboratory.

Paper Details

Date Published: 10 September 1987
PDF: 6 pages
Proc. SPIE 0768, Pattern Recognition and Acoustical Imaging, (10 September 1987); doi: 10.1117/12.940262
Show Author Affiliations
Johan M. Thijssen, University of Nijmegen (The Netherlands)
Bernard J. Oosterveld, University of Nijmegen (The Netherlands)
R. Leo Romijn, University of Nijmegen (The Netherlands)

Published in SPIE Proceedings Vol. 0768:
Pattern Recognition and Acoustical Imaging
Leonard A. Ferrari, Editor(s)

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