Key result
Real-time endocardial edge detection using a novel hardware technique correlated well with manually traced edges for left ventricular cavity areas and perimeters in excised hearts.
A novel hardware technique for real-time endocardial edge detection in 2D echocardiography showed good correlation with manual tracing in excised hearts.
May aid automated LV analysis; leaves open in vivo validation and clinical utility.
Previous approaches to automatic border recognition in two-dimensional echocardiography have utilized off-line computer image analysis. In this paper, we describe a hardware technique for real-time endocardial edge detection during the echocardiographic examination. This technique is based on a new method of line-by-line compensation for ultrasound attenuation. The detected edges and composite edge images can be displayed alone or superimposed upon the usual echocardiographic display. To test the accuracy of our real-time technique, we obtained echocardiograms of excised hearts and compared real-time edges with edges manually traced by an experienced observer. Left ventricular cavity areas and endocardial perimeters derived from real-time edges correlated well with those derived from observer-defined edges.
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Melton et al. (1983) studied this question. Hardware technique for real-time endocardial edge detection vs. Edges manually traced by an experienced observer was evaluated on Correlation of left ventricular cavity areas and endocardial perimeters. Real-time endocardial edge detection using a novel hardware technique correlated well with manually traced edges for left ventricular cavity areas and perimeters in excised hearts.
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