RT Book, Section A1 Carmody, Kristin A1 Moore, Christopher L. A2 Carmody, Kristin A. A2 Moore, Christopher L. A2 Feller-Kopman, David SR Print(0) ID 56300272 T1 Chapter 5. Ultrasound of the Aorta T2 Handbook of Critical Care and Emergency Ultrasound YR 2011 FD 2011 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-160489-5 LK accessanesthesiology.mhmedical.com/content.aspx?aid=56300272 RD 2023/04/01 AB Abdominal aortic aneurysm (AAA) has an adult incidence of 2%–4%, with approximately 10% of these cases occurring in people over the age of 65. The prevalence increases with risk factors for vascular disease, particularly smoking and hypertension. AAA has a male to female preponderance of 8:1 and may be present in as many as 10% of elderly male patients with at least one risk factor.