Artifacts in Contrast-Enhanced Ultrasound during Follow-up after Endovascular Aortic Repair: Impact on Endoleak Detection in Comparison with Computed Tomography Angiography.
Ultrasound Med Biol
; 47(3): 488-498, 2021 03.
Article
en En
| MEDLINE
| ID: mdl-33358051
ABSTRACT
The study described here systematically analyzed how specific artifacts in contrast-enhanced ultrasound (CEUS) can affect the detection of endoleaks during follow-up after endovascular aortic repair (EVAR). Patients undergoing EVAR of atherosclerotic or mycotic abdominal aortic aneurysms using various standard and branched stent-graft material for visceral and iliac preservation were enrolled over 5 y and followed up with computed tomography angiography (CTA) and CEUS simultaneously. CEUS artifacts were frequently identified after EVAR procedures (59% of examinations) and were caused mainly by contrast agent, different prosthesis or embolization material and postinterventional changes in the aneurysm sac. This article describes how to identify important artifacts and how to avoid false-negative or false-positive interpretations of endoleaks. Despite artifacts, CEUS had higher sensitivity for endoleak detection after EVAR than CTA. CEUS was superior to CTA in the identification of late endoleaks type II and in follow-up examinations after embolization procedures, where beam-hardening artifacts limited CTA.
Palabras clave
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Ultrasonografía
/
Artefactos
/
Aneurisma de la Aorta Abdominal
/
Endofuga
/
Procedimientos Endovasculares
/
Angiografía por Tomografía Computarizada
Tipo de estudio:
Diagnostic_studies
/
Observational_studies
/
Prognostic_studies
Idioma:
En
Revista:
Ultrasound Med Biol
Año:
2021
Tipo del documento:
Article