151. Contrast-enhanced ultrasound detects type II endoleaks during follow-up for endovascular aneurysm repair.
- Author
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Johnsen L, Hisdal J, Jonung T, Braaten A, and Pedersen G
- Subjects
- Aged, Aged, 80 and over, Aortic Aneurysm, Abdominal diagnostic imaging, Endoleak etiology, Female, Humans, Male, Middle Aged, Predictive Value of Tests, Prospective Studies, Reproducibility of Results, Time Factors, Treatment Outcome, Aortic Aneurysm, Abdominal surgery, Aortography, Blood Vessel Prosthesis Implantation adverse effects, Computed Tomography Angiography, Contrast Media, Endoleak diagnostic imaging, Endovascular Procedures adverse effects, Phospholipids, Sulfur Hexafluoride, Ultrasonography, Doppler, Color
- Abstract
Objective: Repeated computed tomography angiography (CTA) can be used during follow-up visits for endovascular aneurysm repair (EVAR) but leads to accumulated radiation exposure and may cause renal impairment. Therefore, the use of contrast-enhanced ultrasound (CEUS) has increased, and its ability to detect endoleaks has been promising. The aim of this study was to investigate the diagnostic accuracy of CEUS vs CTA for endoleak detection during EVAR follow-up., Methods: Ninety-two patients with planned EVAR for abdominal aortic aneurysm were prospectively, consecutively enrolled. In total, 233 paired CTA and CEUS procedures were performed within the same day. Follow-up visits occurred 1 month, 6 months, 12 months, and 24 months postoperatively., Results: Of 48 endoleaks discovered by CTA, 39 were also detected on CEUS, giving an overall sensitivity of 81.3% and specificity of 98.9%. All undetected endoleaks were minor, without clinical importance, and occurred in patients with high body mass index., Conclusions: In this study, CEUS was accurate for detecting type II endoleaks during follow-up visits for EVAR. Sensitivity was lower in obese patients. Doppler ultrasound has low sensitivity and seems to be unsuitable for the detection of endoleaks., (Copyright © 2020 Society for Vascular Surgery. Published by Elsevier Inc. All rights reserved.)
- Published
- 2020
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