Unstable abdominal aortic aneurysms: a review of MDCT imaging features

Emergency Radiology
Alysse Sever, Matthew Rheinboldt

Abstract

Abdominal aortic aneurysms are commonly encountered during abdominal CT imaging, and size-based parameters for surgical or endovascular repair are well established. Aneurysms greater than 5 cm in diameter are recognized as representing an increased rupture risk and meriting intervention. Increasingly, additional interest has been generated in recognizing imaging features which may herald instability and portend a higher chance for potentially catastrophic rupture. This article will review and illustrate such signs, including hyperattenuation of mural thrombus, rapid expansion, low thrombus to lumen ratio, intimal calcification disruption, posterior mural draping, and saccular outpouching. Other features of complicated abdominal aneurysms including perianeurysmal inflammation, aortocaval and aortoenteric fistula formation will also be addressed. Heightened awareness of these features and their prognostic implications, as well as timely communication with the clinical service, is critical for the interpreting radiologist.

References

Mar 1, 1990·Journal of Vascular Surgery·A V SterpettiP Chasan
Aug 1, 1988·Radiology·R L GondaM V Azodo
Mar 1, 1983·Reviews of Infectious Diseases·R ParsonsD L Palmer
Dec 1, 1995·AJR. American Journal of Roentgenology·L ArrivéJ M Tubiana
Jul 1, 1994·The British Journal of Surgery·S T MacSweeneyR M Greenhalgh
Nov 1, 1994·AJR. American Journal of Roentgenology·C L SiegelR A Leder
Apr 1, 1996·Radiology·K E Halliday, A al-Kutoubi
May 1, 1996·Catheterization and Cardiovascular Diagnosis·M S FensterM Ragosta
Feb 1, 1997·Annals of Surgery·T E Rasmussen, J W Hallett
Nov 14, 1997·Journal of Vascular Surgery·W R MowerS S Gambhir
Dec 14, 1999·Annals of Vascular Surgery·B V Taylor, P G Kalman
Nov 8, 2002·Journal of Vascular Surgery·Gregory L Moneta
Aug 30, 2003·Journal of Vascular Surgery·E S HaugH O Myhre
Sep 1, 1961·Archives of Surgery·D E SZILAGYIJ G WHITCOMB
Sep 1, 2004·Journal of Vascular Surgery·L Richard SprouseBernardo Mendoza
Nov 2, 2004·Emergency Radiology·Bruno CoulierPierre-Yves Etienne
Dec 1, 2004·European Journal of Vascular and Endovascular Surgery : the Official Journal of the European Society for Vascular Surgery·M BattP-J Bouillanne
Dec 18, 2004·Current Opinion in Rheumatology·Augusto Vaglio, Carlo Buzio
Feb 3, 2005·The British Journal of Surgery·S J F Saers, M R M Scheltinga
Mar 8, 2005·European Journal of Vascular and Endovascular Surgery : the Official Journal of the European Society for Vascular Surgery·T TangK Varty
Jan 21, 2006·AJR. American Journal of Roentgenology·Pamela T Johnson, Elliot K Fishman
May 30, 2006·Annals of Vascular Surgery·Reinhard KoppKarl-Walter Jauch
Jan 25, 2007·JAMA : the Journal of the American Medical Association·David B HellmannJulie A Freischlag
Mar 22, 2007·Radiographics : a Review Publication of the Radiological Society of North America, Inc·Dmitry RakitaBarak Friedman
Apr 21, 2007·Journal of Vascular and Interventional Radiology : JVIR·Klaus D HagspielJohn F Angle
Oct 2, 2007·Journal of Vascular Surgery·Chung-Dann KanYu-Jen Yang
Oct 14, 2009·Journal of Vascular Surgery·Elliot L ChaikofUNKNOWN Society for Vascular Surgery
Nov 3, 2010·Annals of Vascular Surgery·Gioacchino CoppiRoberto Silingardi
Nov 4, 2011·Journal of Vascular Surgery·Derek P NathanBenjamin M Jackson
Mar 1, 2012·Abdominal Imaging·Siva P RamanElliot K Fishman
Jan 1, 2012·Annals of Vascular Diseases·Masataka SatoTomoaki Jikuya
Jan 16, 2015·Radiographics : a Review Publication of the Radiological Society of North America, Inc·Ajay D WadgaonkarPamela T Johnson
Mar 13, 2015·Radiographics : a Review Publication of the Radiological Society of North America, Inc·Yolanda BryceRalph Reichle
Jul 15, 2015·Journal of Vascular Surgery·Firas F Mussa
Aug 1, 2013·Clinical Journal of Gastroenterology·Filipe Vilas-BoasGuilherme Macedo

❮ Previous
Next ❯

Citations

Dec 29, 2020·Annals of Vascular Surgery·Fanny LorandonSimon Rinckenbach

❮ Previous
Next ❯

Related Concepts

Related Feeds

Aortic Aneurysm

An aortic aneurysm is the weakening and bulging of the blood vessel wall in the aorta. This causes dilatation of the aorta, which is usually asymptomatic but carries the risk of rupture and hemorrhage. Find the latest research on aortic aneurysms here.

Blood Clotting Disorders

Thrombophilia includes conditions with increased tendency for excessive blood clotting. Blood clotting occurs when the body has insufficient amounts of specialized proteins that make blood clot and stop bleeding. Here is the latest research on blood clotting disorders.

Aneurysm

Aneurysms are outward distensions or bulges that occurs in a weakened wall of blood vessels. Discover the latest research on aneurysms here.

Related Papers

European Journal of Vascular and Endovascular Surgery : the Official Journal of the European Society for Vascular Surgery
R MakarC V Soong
The Journal of the South Carolina Medical Association
L D VoegeleP Hairston
© 2022 Meta ULC. All rights reserved