PMC3589841_01
PMC3589841_02
Patient 1 cerebral angiogram (left vertebral injection). (a) AP view showing a basilar apex aneurysm pretreatment. (b) Lateral view of the Enterprise stent deployed in the aneurysm dome. (c) Follow-up AP view showing small basilar apex aneurysm recurrence before redo treatment. (d) Follow-up AP view after redo coil embolization of recurrent aneurysm. (e) 27-month follow-up AP view after redo coil embolization showing no further recurrence
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F3
One basilar apex aneurysm [Figure 3] had a small residual (2.5 x 3.0 mm) outside of the stent tines with an Aneurysm Embolization Grade (AEG) of "C" [Table 2], where the P1 origin was incorporated into the aneurysm neck.
Patient 2 cerebral angiogram (right vertebral injection). (a) AP view showing a basilar apex aneurysm pretreatment. (b) AP native view showing placement of the Enterprise stent deployed in the aneurysm dome. (c) AP subtracted view showing the basilar apex aneurysm postembolization
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F4
Two other basilar apex aneurysms (one ruptured, one elective) had small residuals with delayed filling at the neck (AEG-"B"), again where the P1 origin was incorporated into the aneurysm neck [Figures 4 and 5].
Patient 3 cerebral angiogram (right vertebral injection). (a) AP subtracted view showing a basilar apex aneurysm pretreatment. (b) Lateral native view showing the Enterprise stent deployed in the aneurysm dome. (c) AP subtracted view showing the basilar apex aneurysm postembolization
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F5
Two other basilar apex aneurysms (one ruptured, one elective) had small residuals with delayed filling at the neck (AEG-"B"), again where the P1 origin was incorporated into the aneurysm neck [Figures 4 and 5].
PMC3589841_03
Patient 4 cerebral angiogram (left ICA injection). (a) AP subtracted view showing a left MCA bifurcation aneurysm pretreatment. (b) Lateral native view showing the Enterprise stent deployed in the aneurysm dome. (c) AP subtracted view showing the basilar apex aneurysm postembolization
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F6
The ruptured MCA bifurcation aneurysm was completely obliterated (AEG-"A") during initial treatment with this technique, without occlusion or compromise of the branching arteries at the bifurcation [Figure 6].
PMC3589841_04