Contrast-enhanced echography (CEUS) is increasingly recognized in the follow-up of aortic endografts for the detection of potential endoleaks. However, no data is available regarding the contrast agent kinetics. This study aims to characterize the different kinetic profiles associated with each type of endoleak.

A total of 105 patients (65 without endoleak; 40 with at least one endoleak) who underwent CEUS in the Limoges and Toulouse University Hospitals were enrolled in this prospective multicenter descriptive study. CEUS images were subsequently analyzed using VueBox® software. Main perfusion parameters values (onset time, peak enhancement, wash-in rate, area under the curve) were compared using the Mann-Whitney U test.

Data was extracted from 22 patients (4 type I, 16 type II, 2 type III). Type I and III endoleaks appeared earlier (mean difference = 6.10s; 95% CI [0.36–12.30], P = 0.021) and with greater intensity ( P = 0.006) than type II endoleaks. They also showed higher wash-in rates ( P = 0.006) and greater areas under the curve ( P = 0.008).

Compared to type II endoleaks, type I and III endoleaks appear earlier and with greater intensity, and demonstrate faster wash-in rate.