From the Imaging Science Laboratories, Department of Radiology, the Zena and Michael A. Wiener Cardiovascular Institute, the Marie-Josée and Henry R. Kravis Cardiovascular Health Center, and Department of Medicine, Mount Sinai School of Medicine (V.A., S.A., F.H., E.V., J.G.S.A., Z.A.F); Guerbet (E.L., I.B., J-S.R., S.B., C.D., O.R., S.LG., M.P., C.C.), Aulnay-sous-Bois, France; Center for Molecular and Vascular Biology (H.R.L.), University of Leuven, Belgium; INSERM U-652 (P.B.), Paris, France;... (At 2008-03)