Geometry Reconstruction of a Patient-Specific Right Coronary Artery with Atherosclerotic Plaque for CFD Study

Abstract

The geometry reconstruction of a patient-specific right coronary artery with atherosclerotic plaque, for hemodynamic study, is still a challenge. The reconstruction of the extremely irregular geometry of the RCA, of its side-branches and of the atherosclerotic plaque, as close as possible to the reality, is not an automatic method and requires several particular and rigorous steps. Then, the hemodynamic in that patient case was analysed using the relative residence time descriptor. This descriptor is the most important metric to evaluate the tendency of atherosusceptible regions. In this patient-specific case, there is an increase of 25% in the wall arterial area propitious to atherosclerotic plaque development, with a luminal stenosis increase from 20 to 70%.