Accuracy and Utility of Intraoperative Contrast-Enhanced Ultrasound After Complex Endovascular Aortic Aneurysm Repair

Abstract

Endovascular repairs of complex aortic aneurysms generate high radiation exposure for patients and operating staff. Large doses of iodinated contrast media used during these procedures may also result in contrast-induced nephropathy. Exclusion of the aneurysm sac after the repair is usually assessed with angiography, which requires the use of significant additional doses of contrast and radiation. New imaging strategies that limit the exposure to radiation and iodinated contrast are necessary. Contrast agents for ultrasound have been introduced to provide improved blood flow echogenicity for vascular imaging without the risk of nephropathy or radiation exposure.