Collaborative processing to extract myocardium from a sequence of two-dimensional echocardiograms

Shriram V. Revankar; David B. Sher; Steven Rosenthal

doi:10.1117/12.44402

1 June 1991 Collaborative processing to extract myocardium from a sequence of two-dimensional echocardiograms

Shriram V. Revankar, David B. Sher, Steven Rosenthal

Proceedings Volume 1459, Extracting Meaning from Complex Data: Processing, Display, Interaction II; (1991) https://doi.org/10.1117/12.44402
Event: Electronic Imaging '91, 1991, San Jose, CA, United States

Abstract

Echocardiography is an important clinical method for identification and assessment of the entire spectrum of cardiac diseases. Visual assessment of the echocardiograms is tedious and subjective, but on the other hand, owing to the poor quality of the data, the automatic techniques are unreliable. One can minimize these drawbacks through collaborative processing. The authors describe a collaborative method to extract the myocardium from a sequence of two-dimensional echocardiograms. Initially, a morphologically adaptive thresholding scheme generates a rough estimate of the myocardium, and then a collaborative scheme refines the estimate. The threshold is computed at each pixel as a function of the local morphology and a default threshold. The points that have echodensities greater than the threshold form a rough estimate of the myocardium. This is collaboratively refined in accordance with the corrections specified by the operator, through mouse gestures. The gestures are mapped on to an image processing scheme that decides the precise boundaries of the intended regions that are to be added to or deleted from the estimated myocardium.

Citation Download Citation

Shriram V. Revankar, David B. Sher, and Steven Rosenthal "Collaborative processing to extract myocardium from a sequence of two-dimensional echocardiograms", Proc. SPIE 1459, Extracting Meaning from Complex Data: Processing, Display, Interaction II, (1 June 1991); https://doi.org/10.1117/12.44402

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