Reconstructing coronary arterial segments from three projection boundaries

This paper describes a method for the three-dimensional (3D) reconstruction of coronary arterial segments from three projection boundaries. The method is based on the 3D generalized cylinder (GC) model with elliptic cross-sec tions and mainly consists of a model-based estimation of the vessel boundar ies, precise computation of the ellipse parameters of arterial cross-sectio ns from the estimated boundaries, and obtaining the 3D structures by linkin g consecutive cross-sections. Synthetic and real experiments showed that th e method is robust to degradation sources and consequently superior to the two-view method because it uses boundary instead of gray-level information. (C) 2001 Elsevier Science B.V. All rights reserved.