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Quantitative comparison of new image processing methods for volumetric analysis of left ventricular contrast echocardiograms

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6 Author(s)
Steinmetz, E. ; Med. Clinic II, Johannes Gutenberg-Univ., Mainz, Germany ; Brennecke, R. ; Wittlich, N. ; Schon, F.
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An effort has been made to develop image processing methods which allow a definite and precise tracking of the borderline of the ventricle in two-dimensional echocardiograms. Experience is reported with two new methods, which are based on the gray-level rise (GL) and the signal-to-noise ratio (SNR) in combined heart-phase-triggered image series. A quantitative comparison of these time-series methods is presented with respect to the interpretation of a single native image (noncontrast image), a single contrast-material image, the corresponding subtraction image, and the corresponding color superposition image. The comparison is based on the calculation of the ejection fraction using the above-mentioned methods, interobserver variability, and intraobserver variability. The color superposition method and the two new methods described here (GL and SNR) are shown to be especially well suited for left-ventricle function evaluation

Published in:

Computers in Cardiology 1989, Proceedings.

Date of Conference:

19-22 Sep 1989