Fig. 1From: Pulmonary artery to aorta ratio for the detection of pulmonary hypertension: cardiovascular magnetic resonance and invasive hemodynamics in heart failure with preserved ejection fractionExample for the measurement of pulmonary artery (PA) and ascending aorta (Ao) diameters in the axial black blood sequence in a patient with a mean pulmonary artery pressure of 33 mmHgBack to article page