Figure legends:
Figure 1. How to perform the evaluation of pulmonary valve and right ventricular outflow tract: A, position to perform echocardiogram by subcostal view in prone position, with a pillow placed under left hemithorax (light blue). B, the echocardiogram transducer was placed under the patient in the left subcostal position and orientation index marker pointing towards the patient´s left shoulder to view the 4 cardiac chambers. C, subtle upward movement of the transducer tail to view the pulmonary valve and a small portion of the RVOT. D, counter-clockwise rotation of the transducer to view the short axis of the RVOT. Abbreviations - A: Aorta. AV: aortic valve. LA: left atrium. LV: left ventricle. PA: pulmonary artery. PV: pulmonary valve. RA: right atrium. RV: right ventricle. RVOT: right ventricle outflow tract. Illustration by César del Castillo Gordillo.
Figure 2. Images obtained: A, visualization of pulmonary valve and right ventricular outflow tract. B, continuous Doppler of Pulmonary valve. C, short axis of the right ventricular outflow tract. D, colour Doppler of short axis of the right ventricular outflow tract. E, Continuous Doppler of Pulmonary valve. F, Pulsed Doppler at right ventricular outflow tract level.