Beyond late gadolinium enhancement: the key role of diffuse myocardial fibrosis in severe aortic stenosis - an Equilibrium Contrast CMR study - Mcgregor Christopher; Pellerin Denis; Lawrence David; Banypersad Sanjay M; Hausenloy Derek; Huttin Olivier; Quarta Giovanni; Sado Dan M; Flett Andrew S; Taylor Andrew M; Moon James C (Journal of Cardiovascular Magnetic Resonance, 2011)