The value of contrast-enhanced ultrasound (CEUS) using a high-end ultrasound system in the characterization of endoleaks after endovascular aortic repair (EVAR)

Rübenthaler, J.; Reiser, M.; Cantisani, V.; Rjosk-Dendorfer, D. und Clevert, D. A. (2017): The value of contrast-enhanced ultrasound (CEUS) using a high-end ultrasound system in the characterization of endoleaks after endovascular aortic repair (EVAR). In: Clinical Hemorheology and Microcirculation, Bd. 66, Nr. 4: S. 283-292

Abstract

PURPOSE: To evaluate the value of contrast-enhanced ultrasound (CEUS) using a high-end ultrasound system in the characterization of endoleaks after endovascular aortic repair (EVAR). MATERIAL AND METHODS: In this mono-center study, 41 patients were retrospectively analyzed after being examined using a modern high-end ultrasound system (RS80A with Prestige, Samsung Medison Co., Ltd., Seoul, Korea). The maximum diameters of the aneurysms were measured in two planes (right-left and ventral-dorsal). The performance of Color Doppler in comparison to CEUS was evaluated and CEUS was considered as the gold standard in endoleaks detection. RESULTS: 41 patients were included in the study. Between June and December 2016, mostly male patients (n = 38;92,7%) were examined, corresponding to the incidence of abdominal aortic aneurysms in the population. Average age was 75 +/- 8 years (range 58-100 years). Average diameter of the treated aneurysm-sacs was 5,04 +/- 1.5 cm (range 2.7-10.5 cm) in the right-left plane and 4,75 +/- 1.36 cm (range 2.8-8.9 cm) in the ventral-dorsal plane. Using CEUS as the gold standard endoleaks could be detected in 28 patients (68,3%) with 13 patients not showing an endoleak after EVAR. Color Doppler showed a sensitivity of 32.1%, a specificity of 92.3%, a positive predictive value (PPV) of 90.0% and a negative predictive value (NPV) of 38,7% compared to CEUS being the gold standard. CONCLUSION: CEUS after EVAR using a modern high-end ultrasound system is a fast and cost-effective imaging modality for the detection and follow-up of endoleaks with superior benefits compared to Color Doppler. CEUS remains the initial standard-of-care examination for follow-up.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Medizin
• Themengebiete: 600 Technik, Medizin, angewandte Wissenschaften > 610 Medizin und Gesundheit
• ISSN: 1386-0291
• Sprache: Englisch