Fig. 2
From: Fetal aortic valvuloplasty: first report of two cases from Saudi Arabia
a Before the intervention, no forward flow (arrow) was present through the left ventricular outflow tract and mitral regurgitation was observed by color Doppler. b Immediately after the balloon dilation, echocardiography demonstrated increased forward flow across the aortic valve and disappearance of the mitral regurgitation. LV, left ventricle; LA, left atrium