What is the role of IA-CTA in the workup of abdominal aortic aneurysm (AAA)?

Updated: Jan 08, 2019
  • Author: Saum A Rahimi, MD, FACS; Chief Editor: Vincent Lopez Rowe, MD  more...
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Intra-aortic CTA (IA-CTA) has good sensitivity for locating the Adamkiewicz artery (AKA) in patients with thoracoabdominal aortic aneurysms. In one study, the AKA was visualized by IA-CTA in 27 of 30 cases (90%) before surgery for aneurysm or dissection of the thoracoabdominal aorta. [17] Continuity with the aorta was satisfactorily seen in 26 of 31 (84%) cases. Spinal angiography by selective catheterization confirmed the results of IA-CTA in 75% of cases in which the AKA was visualized.

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