Right parasternal long axis left ventricular outflow tract view of the heart with colour flow Doppler with a reversed ventricular septal defect shunt. A right to left shunt characterised by blue-colour flow across the high membranous ventricular septal defect with concomitant overriding aorta. Right atrium (RA), right ventricle (RV), left atrium (LA), left ventricle (LV), interventricular septum (IVS).