Article Figures & Data
Figures
- Fig 1.
Process of virtual stent deployment. A–C, Three virtual Enterprise stents were deployed one by one. D and E, Location of real stents in 2D angiography and DynaCT (Siemens). F, Virtual stents deployed in a similar location with the real counterparts.
- Fig 2.
Box figure of hemodynamic analysis results. The asterisk indicates that the parameter was significantly different from the prestenting status.
- Fig 3.
Flow patterns of 2 vertebral artery fusiform cases with different stent-placement strategies. One and 2 represent 2 individual cases. From left to right, flow patterns before and after implantation of 1–3 stents. The yellow dotted lines represent the positions of the stents. As the number of stents increased, blood flow inside the stent lumen concentrated and the flow rate accelerated, while the flow rate inside the aneurysmal sacs slowed and the vortex intensity weakened.
Tables
Patient No. Age (yr) Sex Ruptured Treatment Follow-Up Case 1 46 Male No 3 EP 8 mo, cured Case 2 53 Male No 2 EP 12 mo, thrombosis formation Case 3 39 Female Yes 2 EP+coils Withdraw Case 4 37 Male Yes 2 EP+coils 6 mo, cured Case 5 51 Male No 2 EP+coils 7 mo, thrombosis formation Case 6 59 Male No 3 EP 13 mo, cured Case 7 49 Female Yes 2 EP+coils 12 mo, cured Case 8 46 Male Yes 3 EP+coils 12 mo, cured Case 9 60 Male No 2 EP 6 mo, stable Case10 46 Male No 2 EP 12 mo, thrombosis formation Note:—EP indicates Enterprise self-expanding stent.
Parameters 0 Stent 1 Stent 2 Stents 3 Stents P Value Wall shear stress (%) (n = 10) 100 92.8 79.4 74.2 .003 Oscillatory shear index (%) (n = 10) 100 56.5 50.5 62.6 .169 Pressure (%) (n = 10) 100 115.7 121.5 128.2 <.001 Relative residence time (%) (n = 10) 100 111.3 115.4 145.0 .004 ↵a Data are expressed as the median of the variation rate.
Parameters 0 Stent vs 1 Stent 0 Stent vs 2 Stents 0 Stent vs 3 Stents WSS (n = 10) .498 .063 .007 Pressure (n = 10) .037 .001 <.001 RRT (n = 10) .904 .251 .009
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