Computerized cardiovascular imaging

Contour Detection of the Left Ventricular Cavity from Angiographic Images

“…Because such operations are rather time consuming when performed by hand, and cannot be routinely performed in the catheterization laboratory, several computer methods have been proposed in order to obtain automatic determination of LV cavity outlines from angiographic sequences [5]- [23].…”

“…As pointed out by Bulawa and Meyers [23], two techniques have so far been used in the detection of edge elements in this type of images: threshold and spatial gradient methods. Irrespective of the technique used, the key problem is to connect all the edge elements belonging to the contour of the ventricle.…”