Journal Article ASD, atrial septal defect Anomalous pulmonary venous connection Ao, aorta Aortic atresia CT Angio, computed tomographic angiography Case Reports Children Comparison echocardiography and angiography Cor triatriatum Dilated cardiomyopathy Echocardiographic guidance HLHS, hypoplastic left heart syndrome Hypoplastic left heart syndrome Hypoplastic right ventricle LA, left atrium LV, left ventricle Large patent ductus arteriosus Mitral atresia Mitral regurgitation Mitral valve surgery Normal pulmonary arteries PFO, patent foramen ovale Patent ductus arteriosus Pulmonary atresia RA, right atrium RV, right ventricle Transcatheter closure Ventricular septal defect