Figure 1From: Combined CMR and catheterization data in determining right ventricular-arterial coupling in children and adolescents with pulmonary arterial hypertensionRegression of ventricular arterial coupling ratio (Ea/Emax) and pulmonary vascular resistance indexed by reactivity. The shaded areas represent the 95% confidence interval for each regression line. The lines depict different trajectories based on reactivity, which approached, but not reach statistical significance (p > 0.05).Back to article page