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Segmentation of echocardiographic images using mathematical morphology

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4 Author(s)
Klingler, J.W., Jr. ; Med. Coll. of Ohio, Toledo, OH, USA ; Vaughan, C.L. ; Fraker, T.D., Jr. ; Andrews, L.T.

A semiautomatic technique for isolating the ventricular endocardial border in echocardiograms from a commercially available two-dimensional phased array ultrasound system is presented. This method processes echo images using mathematical morphology to reduce the effects of range and azimuth variation inherent in echo. After morphological filtering, the endocardial border is extracted with traditional segmentation methods. Further processing of the resulting border using binary morphology produces a region of interest suitable for derivation of motion parameters of the endocardium. The area and the shape of semiautomatically-derived regions correlate well (r>0.93) with those defined by expert observers in a study of induced ischemia in seven canines.

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Biomedical Engineering, IEEE Transactions on  (Volume:35 ,  Issue: 11 )