An abdominal aortic aneurysm (AAA) is an enlargement or bulge that develops in a weakened area within the aorta — the largest artery in the abdomen. The pressure generated by each heartbeat pushes against the weakened aortic wall, causing the aneurysm to enlarge.
Eventually the aneurysm can become so big and fragile that it bursts, causing internal bleeding that can be fatal. An abdominal ultrasound is a medical imaging test that can identify an AAA before it ruptures so providers can treat it. Depending on the size of the aneurysm and other factors, treatment may involve surgery.
Who should get an AAA screening?
Discuss your risk of developing AAA with your primary care provider to determine if a screening is right for you. Risk factors for AAA include the following:
- Tobacco use
- Being over 65 years of age
- Being male
- Family history of AAA
Medicare Part B covers a one-time screening for AAA if you receive a referral from your doctor or other health care provider and meet one of the following criteria:
- You have a family history of AAA
- You are male, between 65-75 years of age and have smoked 100 or more cigarettes in your lifetime
What to expect
During an AAA screening, you will lie on an examination table and an imaging technologist will apply a clear gel to your abdominal area. Next, the technologist will firmly press a handheld device called a transducer over your abdomen, moving it back and forth until the desired images are captured.
The procedure is noninvasive and painless, though you may experience slight discomfort from pressure as the technologist presses the transducer against your body. An AAA screening typically takes 30 minutes or less.
How to prepare
- Follow instructions for your appointment. When you make your appointment, our care team will explain your particular procedure and provide detailed instructions. You may need to limit food and fluid intake for a period of time before the exam.
- Wear comfortable, loose-fitting clothing. You may need to remove clothing and jewelry, or you may be asked to wear a gown during the procedure.
- Arrive early. Please arrive to your exam 10-15 minutes early to fill out paperwork.
After your exam
A radiologist, a physician who specializes in interpreting medical imaging, will analyze the results and send a report to your health care provider. You can also view your results in MyChart once they are available.
How to refer a patient
Please visit our Refer a Patient page for instructions on how to refer patients for medical imaging services.