System for measuring myocardium in cardiac images

Details System for measuring myocardium in cardiac images System for measuring myocardium in cardiac images

1996-11-19

1997-09-23

Jaworski, Francis

Surgery

Truss

Pad

382272, A61B 600

Patent

active

056693826

ABSTRACT:
The present invention determines the epicardial boundary, being a closed curve dividing the myocardium from the tissue and blood surrounding the left ventricle. A mean and standard deviation is determined for pixels of a medical image of the subject's myocardial tissue. These are used to define a "goodness function" over the image which is positive for pixels statistically likely to be myocardial tissue, and negative for other pixels. An initial curve for modeling the epicardium in radial coordinates starts with a curve of inner myocardial boundary obtained my conventional imaging techniques. This curve is then iteratively updated to maximize the total "goodness function" of the region encompassed.

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