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Dual-Energy CT (DECT) aortogram study in a patient with recent endovascular aneurysm repair (EVAR) for an abdominal aortic aneurysm (AAA).
Reconstituted conventional CT angiogram images (Figure A and B) shows hyperdense material in the right posterolateral aspect of the excluded aneurysm sac (arrow) which is in close proximity to the origin of a left lumbar artery (arrow head)
Post-processing DECT virtual contrast/iodine overlay images clearly depict orange colored area in the excluded aneurysm sac confirming with certainty the presence of a type II endoleak.