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Proceedings Paper

Radionuclide Expert Images Of Cardiac Wall Motion Abnormalities
Author(s): J. J. Sychra; D. G. Pavel; E. Olea
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Paper Abstract

At present, the phase and amplitude images are used in nuclear medicine to aid the diagnosis of cardiac regional wall motion abnormalities (RWMA). These images contain only part of the information present in the original radionuclide images, and have to be mentally integrated with other information to obtain a diagnosis. The proposed expert images offer a direct diagnosis in terms of eight degrees of RWMA of cardiac left ventricle from normal to dyskinetic. They are based on a multiparametric description of the pixel time behavior in equilibrium gated studies, on image filtering, and signal, prediction and pattern analyses: a physician "teaches" the computer by drawing boundaries of domains of regional wall motion abnormality classes into images of well defined cases, and the computer then emulates on new, unknown cases diagnostic drawings as they would be drawn by the physicians. The proposed expert images represent a step beyond the categories of present functional images.

Paper Details

Date Published: 18 October 1989
PDF: 8 pages
Proc. SPIE 1137, Science and Engineering of Medical Imaging, (18 October 1989); doi: 10.1117/12.961731
Show Author Affiliations
J. J. Sychra, University of Illinois (United States)
D. G. Pavel, University of Illinois (United States)
E. Olea, University of Illinois (United States)

Published in SPIE Proceedings Vol. 1137:
Science and Engineering of Medical Imaging
Max A. Viergever, Editor(s)

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