CEUS has role in follow-up for endovascular aortic repair

Monday, November 27 | 1:40 p.m.-1:50 p.m. | M6-SSVA02-2 | Room N226

The performance of contrast-enhanced ultrasound (CEUS) in follow-up imaging after endovascular aortic repair will be compared to that of CT in a 12-year study to be presented in this session.

In his talk, Johannes RĂ¼benthaler, MD, from the Ludwig-Maximilians-University of Munich will present research showing how while CEUS may not replace CT in this area, it could be a supplementary modality.

Effective diagnostic follow-up is needed for planning and implementing therapy for secondary rupture caused by endoleaks after endovascular aortic repair. While CT is the standard imaging modality for such assessment, RĂ¼benthaler and colleagues wanted to study the diagnostic accuracy of CEUS and find out if it could be an alternative method.

For their 12-year, single-center study, the researchers included data from 241 patients who underwent follow-up examinations after endovascular stent implantation for abdominal aortic aneurysm. This included 1,095 CEUS exams performed between 2005 and 2017, of which 300 were compared with concomitant CT exams.

The researchers found that CEUS demonstrated a sensitivity of 90.2% and a specificity of 62.4% in detecting endoleaks, with CT angiography exams being considered the gold standard. They found 110 true positives, 67 false positives, 111 true negatives, and 12 false negatives with CEUS.

The team also reported significant differences in aneurysm size for different types of endoleaks. However, it also noted that it could not establish a correlation between aneurysm growth and endoleak classification.

Attend this session to find out more about the results.