Consistent inexact graph matching applied to labelling coronary segments in arteriograms

As part of the development directed at the automated reporting of the location and degree of stenoses in a coronary arterial tree, the authors address the issue of automated labelling of coronary segments. With a priori information of the coronary anatomy related to the projection geometry, the branches of a coronary tree are labelled by a consistent inexact graph matching (CIGM) technique. They describe the CIGM technique, the cost functions and associated parameters, a representation of the segments of the arterial tree and their experience in labelling arteries in routinely acquired arteriograms.>