Radionuclide Expert Images Of Cardiac Wall Motion Abnormalities

J. J. Sychra; D. G. Pavel; E. Olea

doi:10.1117/12.961731

18 October 1989 Radionuclide Expert Images Of Cardiac Wall Motion Abnormalities

J. J. Sychra, D. G. Pavel, E. Olea

Proceedings Volume 1137, Science and Engineering of Medical Imaging; (1989) https://doi.org/10.1117/12.961731
Event: 1989 International Congress on Optical Science and Engineering, 1989, Paris, France

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.

Citation Download Citation

J. J. Sychra, D. G. Pavel, and E. Olea "Radionuclide Expert Images Of Cardiac Wall Motion Abnormalities", Proc. SPIE 1137, Science and Engineering of Medical Imaging, (18 October 1989); https://doi.org/10.1117/12.961731

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