Extracellular volume fraction measured by cardiac magnetic resonance imaging can help to evaluate left ventricular stiffness noninvasively by representing histological collagen volume fraction
Impact of left ventricular pressure overload on relaxation and stiffness in patients with preserved ejection fraction: noninvasive study using speckle tracking echocardiography
Renin activity is an independent predictor of outcome in patients with heart failure and preserved ejection fraction independent of RAAS blocker therapy