PMC5416824_01
Angiograms and corresponding illustrations of hemodynamic characteristics in case 3.. The results of pre-treatment (A, E and I), post-treatment (B, F and J), pre-retreatment (C, G and K) and post-retreatment (D, H and L) were demonstrated in four columns. A series of angiograms (A-D) were showed in the first row and corresponding hemodynamic results were demonstrated in the last two rows (WSS in middle row, E-H; velocity in the last row, I-L). The aneurysm was completely occluded after initial treatment (B). However, recanalization was confirmed at 3 months follow up (C, arrow). In simulation results, the WSS and velocity in aneurysm were significantly reduced (F and J) after initial treatment, however, remaining high WSS and inflow jet near the neck (F and J, arrows) that were associated with recanalization. After retreatment, no inflow jet could be found near the neck (H and L)
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F2
Before initial treatment, the high WSS and concentrated flow jet could be found at inflow zone near the aneurysm neck (Figure 2 E and I). After initial SACE, the WSS at aneurysm dome was significantly reduced (65.8%), however, there was remaining high WSS near the neck (Figure 2 F, arrow). The inflow jet near the aneurysm neck was high after stent placement (Figure 2 J, arrow). After retreatment, both parameters were further decreased (61.8% and 56.3% respectively) and no inflow jet could be found near the neck (Fig. 2 H and L).
PMC5416824_02
PMC5416824_03