Figure 2From: Impairment of pulmonary vascular reserve and right ventricular systolic reserve in pulmonary arterial hypertension Relationship between hemodynamic response and cardiovascular reserve. A. Correlation between delta elastic modulus (ΔEM) and delta mean pulmonary artery pressure (ΔmPAP); B. correlation between ΔEM and delta cardiac output (ΔCO); C. correlation between delta myocardial isovolumic acceleration (ΔIVA) and ΔmPAP; D. correlation between ΔIVA and ΔCO in PAH patients. (delta = value during dobutamine stress test and Trendelenburg minus value at rest).Back to article page