Background: Selecting intervention strategies for renal artery aneurysms (RAAs) is challenging especially for those located at the vessel bifurcation. The relationship between the aneurysm and renal branches could not always be accurately viewed from traditional computed tomography angiography (CTA) images.
Case Presentation: This study proposed a new method to investigate the anatomy and affected vessel branches of RAAs using automated software. Two patients with RAAs located at the renal artery bifurcation underwent Cone beam CTA (CBCTA) analysis. We sequentially coupled the "two-click AVA" function of Vessel IQ Xpress (GE Healthcare) with the "vascular tree extraction" function from FlightPlan for Embolization (GE Healthcare) to evaluate the relationship among the main renal artery, vessel branches, and aneurysms. The results showed that one patient had 1 out of 3 branches affected by the aneurysm, whereas the other's branches were all affected. Endovascular repair and open surgery were performed respectively based on the image analysis. Both patients recovered well at follow-up examination.
Conclusions: Based on CBCTA analysis, the combination use of the "two-click AVA" function of VesselIQ Xpress and FlightPlan for Embolization software could assist in aneurysm assessment and intervention choices for RAAs.
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