Matched filter identification of left-ventricular endocardial borders in transesophageal echocardiograms
- 1 January 1990
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Medical Imaging
- Vol. 9 (4), 396-404
- https://doi.org/10.1109/42.61755
Abstract
The use of one-dimensional spatial matched filtering for identifying the left ventricular endocardial borders in human transesophageal echocardiograms recorded during surgery is investigated. A maximum-likelihood method was used to choose the endocardial intensity profiles centered within the ventricle. The computer-generated border points were compared to those identified by an experienced ultrasonographer. A 16-pixel step template located 63.2% of the border points within 2 mm of the manual border. Median prefiltering of the images reduced detection accuracy by 3% to 6%. No statistically significant difference in accuracy was found between longer and shorter templates or between data-derived and step templates. Compared to manual estimates, computer generated cross-sectional area determinations were correlated with a coefficient of 0.93. Matched filtering executes rapidly, does not require prefiltering, and performs as well as other reported methods in estimating ventricular area.Keywords
This publication has 17 references indexed in Scilit:
- Detecting left ventricular endocardial and epicardial boundaries by digital two-dimensional echocardiographyIEEE Transactions on Medical Imaging, 1988
- Semiautomated Border Tracking of Cine Echocardiographic Ventnrcular ImagesIEEE Transactions on Medical Imaging, 1987
- Computer-assisted edge detection in two-dimensional echocardiography: Comparison with anatomic dataThe American Journal of Cardiology, 1984
- Validation of a computerized edge detection algorithm for quantitative two-dimensional echocardiography.Circulation, 1983
- An Approach to Optimal Threshold Selection on a Sequence of Two-Dimensional Echocardiographic ImagesIEEE Transactions on Biomedical Engineering, 1982
- Reproducibility of EchocardiographyChest, 1981
- Acoustic Speckle: Theory and Experimental AnalysisUltrasonic Imaging, 1979
- Signal Enhancement for Automatic Identification of Arterial Wall Echoes from an Intravessel ScannerPublished by Springer Science and Business Media LLC ,1978
- An introduction to digitial matched filtersProceedings of the IEEE, 1976
- An introduction to matched filtersIEEE Transactions on Information Theory, 1960