fig16

Figure 16. Aortic arch cine images in right anterior oblique projections illustrating the sequence of coil implantation. (A) Aortogram prior to coil occlusion demonstrating patent ductus arteriosus (arrow, D). (B) Radiogram showing the initial delivery of coils across the ductus. (C and D). The catheter is gradually retracted after the loading wire is pulled back (see arrows). (E) Once the catheter tip reaches the descending aorta (DAo), the loading guide wire is positioned against the coil wire and the catheter is pulled back while the guide wire is kept stable, thus delivering the remaining coils across the ductus. (F) Cine-angiogram showing full closure of the ductus. See that there is one coil loop in the main pulmonary artery (MPA) while the left over loops are in the ampulla of the ductus. Reproduced from Ref.^[7].