Figure 13: Selected cine-angiographic/radiographic frames demonstrate stent deployment in aortic coarctation using a balloon-in-balloon catheter showing the position of an un-inflated stent (A), following inflation of the inner balloon (IB) (B), test angiogram after inflation of inner balloon (C), after outer balloon (OB) inflation (D) and after balloon deflation and withdrawal (E). White arrow in E demonstrates the expanded stent (St). The guide wire (GW) is positioned in the right subclavian artery in an attempt to keep the stent straight. Radio-opaque tip of the sheath (Sh) is seen. DAo, descending aorta.