The general framework of the Optimised Computational Functional Imaging for Arteries (OCFIA) program is to introduce high-performance scientific computing in the medical domain with the aim to rationalize therapeutic decisions in respect to vascular diseases yet poorly understood. More precisely, it consists in coupling medical imaging techniques, essentially morphological, with scientific computing, through Computational Fluid Dynamics (CFD), to yield functional imaging, thus providing to physicians a better quantitative knowledge of the biomechanical state (field of speeds, pressure, wall and Stent Graft loads ...) to the patients.