Figure 1.

Large Patent Ductus Arteriosus Visualization and Treatment

(A) Transthoracic echocardiogram short-axis view with and without color Doppler showing flow (yellow arrows) from the aorta (Ao) to main pulmonary artery (PA). (B) Corresponding view from computed tomography (CT) angiogram of patent ductus arteriosus (PDA) (∗). Note decreased contrast opacification of main PA from left-to-right shunting of non-opacified aortic blood compared to bright contrast opacification of the right ventricle (RV). (C) Sagittal view of CT angiogram showing PDA (∗) between Ao and main PA. (D) Invasive angiogram placement of 14-mm Amplatzer Muscular VSD Occluder (arrowheads) within the ductus arteriosus.

RA = right atrium; RPA = right main pulmonary artery; SVC = superior vena cava.