The draped aorta sign is an important imaging feature that can be seen in contained rupture of an abdominal aortic aneurysm. It is highly indicative of aortic wall deficiency.
This sign is considered present when the posterior wall of an aortic aneurysm drapes or moulds to the anterior surface of the vertebra. Usually, the fat planes between the aneurysm and vertebra are lost 1-3.
Chronic contained rupture of an abdominal aortic aneurysm may cause vertebral erosions in up to 30% of cases 4,5.
- 1. Halliday KE, Al-Kutoubi A. Draped aorta: CT sign of contained leak of aortic aneurysms. Radiology. 1996;199 (1): 41-3. Radiology (abstract) - Pubmed citation
- 2. Rakita D, Newatia A, Hines JJ et-al. Spectrum of CT findings in rupture and impending rupture of abdominal aortic aneurysms. Radiographics. 2007;27 (2): 497-507. doi:10.1148/rg.272065026 - Pubmed citation
- 3. Vu KN, Kaitoukov Y, Morin-Roy F et-al. Rupture signs on computed tomography, treatment, and outcome of abdominal aortic aneurysms. Insights Imaging. 2014;5 (3): 281-93. doi:10.1007/s13244-014-0327-3 - Free text at pubmed - Pubmed citation
- 4. Lai CC, Tan CK, Chu TW et-al. Chronic contained rupture of an abdominal aortic aneurysm with vertebral erosion. CMAJ. 2008;178 (8): 995-6. CMAJ (full text) - doi:10.1503/cmaj.070332 - Free text at pubmed - Pubmed citation
- 5. Apter S, Rimon U, Konen E et-al. Sealed rupture of abdominal aortic aneurysms: CT features in 6 patients and a review of the literature. Abdom Imaging. 2010;35 (1): 99-105. doi:10.1007/s00261-008-9488-1 - Pubmed citation
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