Fig. 1From: Non-invasive determination by cardiovascular magnetic resonance of right ventricular-vascular coupling in children and adolescents with pulmonary hypertensionThis diagram shows the single beat method by depicting how Ees and Ea are determined using the maximal pressure (Pmax) as the peak of the sinusoid of a ventricular pressure tracing, end-systolic point (Pes), and (volume at end-diastole) Ved Back to article page