This parallel-group, randomized, placebo-controlled study will examine the incidence and severity of acute kidney injury (AKI) in patients with chronic kidney disease (CKD) stage III/IV following an i.v. injection of iso-osmolar iodinated contrast material iodixanol (Visipaque™ Injection 320 mgI/mL), as compared with patients who received saline and underwent a non-enhanced CT (NECT) and duplex ultrasound (US) during their scheduled post-EVAR surveillance imaging.