Fig. 5

Visualized results of numerical simulation (Streamline, Velocity, WSS and Pressure) of Case 2. E, a single-Enterprise stent model; E2, double-Enterprise stent model; L, a single-LVIS stent model; L2, double-LVIS stent model; P, a single-Pipeline device model. The number of streamlines, WSS and velocity decreases in the following order: E < E2 < L<P < L2 < P2. The vortex shape seen in Control persists with the gradually lower intensity after stenting similar to the WSS and velocity changes. The high WSS region near the aneurysmal neck decreased and low WSS region newly generated at the parent vessel after stenting. Compared to Control, two new vortices were formed in L while only one vortex remained in L2. Note: WSS wall shear stress