Figure 1From: Percutaneous closure of atrial septal defects leads to normalisation of atrial and ventricular volumesFour chamber CMR views showing the ASD pre- (panel A) and post-closure with the Amplatzer Septal Occluder (ASO) device (panel B). RA = right atrium, LA = left atrium, RV = right ventricle and LV = left ventricle.Back to article page