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Proceedings Paper

Use Of The V2G Operator In Automated Border Extraction In Echocardiographic Images
Author(s): Andrew Seit; Kenneth Tsui; Peter Nickolls; Stephen Hunyor
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Paper Abstract

Quantitative analysis of regional heart wall motion provides a useful method for assessing the severity and the extent of ischemia and infarction in patients with coronary artery diseases. Manual tracing of heart borders for such analysis is time consuming and with high inter- and intra-observer variabilty. To overcome these limitations, an automated technique to extract the heart borders is required. Such a technique based on the Laplacian of Gaussian operator (∇2G) has been implemented. Edge points are located by detecting the zero-crossings after the image is convolved with the ∇2G filter. Contiguous edge points are then chained together to form edge lines. Heuristics based on the morphology of the heart cavity are used to select the edge lines corresponding to the endocardium border.

Paper Details

Date Published: 27 June 1988
PDF: 9 pages
Proc. SPIE 0914, Medical Imaging II, (27 June 1988); doi: 10.1117/12.968709
Show Author Affiliations
Andrew Seit, Royal North Shore Hospital (Australia)
Kenneth Tsui, University of Sydney (Australia)
Peter Nickolls, University of Sydney (Australia)
Stephen Hunyor, Royal North Shore Hospital (Australia)

Published in SPIE Proceedings Vol. 0914:
Medical Imaging II
Samuel J. Dwyer III; Roger H. Schneider; Samuel J. Dwyer III; Roger H. Schneider; Roger H. Schneider; Samuel J. Dwyer III, Editor(s)

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