No IVUS was performed before stent placement in either group. In the angiography-directed (AG) arm, procedural success was defined as <10% stent diameter stenosis compared with the distal ...

After placement of a flow diverting stent device, the aneurysm slowly shrank and the vessel healed. Six months after the procedure, the aneurysm is cured (c, d). The three-dimensional angiogram (e) ...