Follow-up of Aortic Stent Grafts: Comparison of the Volumetric Analysis of the Aneurysm Sac by Ultrasound and CT

Volumetric echography is comparable with CTA for the evaluation of the aneurysm sac after EVAR, reproducible and inexpensive. When a significant increase of the volume of the sac is detected by ultrasound, the examination can be supplemented by an injection of ultrasound contrast agent or by CTA to visualize an endoleak.