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Figure 2: Ductus arteriosus in TOF-PA arising proximally from the underside of the aortic arch inserting onto the proximal part of the LPA. Signifi cant stenosis of the LPA is present. The tip of a JR catheter passed transvenously into the aorta via the VSD is engaged in the ampulla for adequate visualization

Figure 2: Ductus arteriosus in TOF-PA arising proximally from the underside of the aortic arch inserting onto the proximal part of the LPA. Signifi cant stenosis of the LPA is present. The tip of a JR catheter passed transvenously into the aorta via the VSD is engaged in the ampulla for adequate visualization