Right Ventricular Outflow Tract Obstruction in Monochorionic Twins with Selective Intrauterine Growth Restriction
Figure 1
(a) Ultrasound examination at 21 weeks GA shows a four chamber view with a very mild right ventricle hypertrophy and mildly pericardial effusion. (b) Ultrasound examination at 21 weeks GA shows an elevated peak systolic velocity across the pulmonary valve of 1.75 m/s. (c) Ultrasound examination at 21 weeks GA shows the pulmonary valve with a mild post stenotic dilatation. Valve cusps and pulmonary wall were echogenic and thickened. (d) Ultrasound examination at 28 weeks GA shows RV remains adequate, mild hypertrophy.
