Article 2 child 2 clinical article 2 echocardiography 2 heart atrium septum defect human 2 male 2 preschool child 2 2q37.3 deletion 1 Blood 1 Blood flow imaging 1 Blood speckle tracking 1 Child 1 Child, Preschool 1 Dilatation, Pathologic 1 Double outlet infundibulum 1 Dynamics 1 Echocardiography 1 Energy 1 Energy dissipation 1 Energy loss 1 Fallot tetralogy 1 Female 1 Flow dynamics 1 Flow phantom 1 Heart Septal Defects, Atrial 1 Heart Ventricles 1 High frame rate imaging 1 High-frame-rate imaging 1 Humans 1