3-D coronary artery shape analysis of computerized tomography angiography based on fuzzy distance transform

Shape analysis of the coronary artery of computerized tomography angiography (CTA) is an efficient tool for clinical diagnosis of coronary heart disease. The three dimensional coronary artery shape analysis is based on a vessel geometry topological and fuzzy distance transform. The surface and curvature is acquired using the local geometry topological construction. The fuzzy distance transform function is then computed. The coronary artery diameter, stenosis position, length and stenosis percent, and the bifurcation position can be efficiently detected using the fuzzy distance transform. Simulations and clinical data for coronary arteries show that the shapes are accurate and the analysis is very fast, which is quite useful tool in clinical diagnoses.