NDLI: Automated contour detection of the left ventricle in short axis view and long axis view on 2D echocardiograms

Content Provider	IEEE Xplore Digital Library
Author	Maes, L. Delaere, D. Suetens, P. Aubert, A. Van de Werf, F.
Copyright Year	1990
Description	Author affiliation: Interdisciplinary Res. Unit for Radiol. Imaging, Katholieke Univ., Leuven, Belgium (Maes, L.)
Abstract	An algorithm is presented to automatically delineate the endocardium in echocardiograms. The algorithm uses an optimization technique to overcome the poor image quality of existing algorithms and to use dynamic information. The information used in the process consists of grey level gradient, texture gradient, smoothness of the contour, and deviation of the present contour with respect to one of the previous video frames. The optimization algorithm locates the best compromise between image information and continuity in space and time. The automatic delineation is used for wall motion analysis and calculation of volumes and volume changes of the left ventricle (LV). An assessment of the accuracy of the volume calculations and indirectly the delineation was made by comparing the actual and calculated volume of the LV of excised dog hearts filled with a known amount of water. It is demonstrated that the dynamic programming technique is promising in detecting the myocardial borders.<>
Starting Page	603
Ending Page	606
File Size	401453
Page Count	4
File Format	PDF
ISBN	0818622253
DOI	10.1109/CIC.1990.144291
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1990-09-23
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Myocardium Ultrasonic imaging Cardiology Image quality Motion analysis Heart Echocardiography Radiology Dogs Signal to noise ratio
Content Type	Text
Resource Type	Article

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