title: Abdominal Aortic Aneurysms.
abstract: Abdominal aortic aneurysm (AAA) is a significant disease affecting the circulatory system. Risk factors include smoking, hypertension, sex, and a possible hereditary predisposition. AAAs remain asymptomatic for years, and various imaging methods are used in their detection, diagnosis, and treatment. This article reviews the anatomy and physiology of the aorta as well as the signs and symptoms, pathophysiology, epidemiology, and risk factors for the development of AAA. The use of ultrasonography and other imaging modalities for pre- and post-treatment is discussed, as is endovascular aortic repair.
authors.forename: Jeffrey S
authors.initials: JS
authors.lastname: Legg
authors.forename: Lynn M
authors.initials: LM
authors.lastname: Legg
mesh_terms: D001012:Aorta, Abdominal / Q000033:anatomy & histology / Q000502:physiology; D017544:Aortic Aneurysm, Abdominal / Q000000981:diagnostic imaging* / Q000628:therapy; D006801:Humans; D012307:Risk Factors; D013679:Technology, Radiologic