Abdominal Aortic (AAA) Screening
SUBJECT: Screening Abdominal Aortic Ultrasound
SECTION: Vascular Ultrasound
ORIGINATOR: Deborah L. Richert, BSVT, RDMS, RVT
REVIEW DATE: September 13, 2013
APPROVED BY: Jody Riherd MD, Dave Clayton RDMS RVT
***A diagnostic aortic ultrasound should be performed if the patient has signs, symptoms, or known abdominal aortic aneurysm.
Who should be screened?
- All males aged 60-85 years
- Females aged 60-85 years with cardiovascular risk factors
- Males or females older than age 50 years with a family history of AAA
How often should patients be screened? Consensus is for a one-time screening, unless signs or symptoms develop in the interim.
What are the details?
- This test can be performed at the La Crosse, Onalaska, Sparta, Prairie du Chien, and Decorah campuses.
- It is only performed on outpatients and only during clinic hours.
What are the guidelines for follow-up of abnormal tests?
- < 3 cm No further testing.
- 3 - 4 cm Yearly diagnostic ultrasound
- 4 - 4.5 cm Diagnostic ultrasound every 6 months
- > 4.5 cm Consult the Gundersen Vascular Institute
Reference: Screening for abdominal aortic aneurysms – a consensus statement. Vascular Medicine. 2004: 9:87-89.
Prep: None. As this is meant to be a quick survey of the distal abdominal aorta these patients may be scheduled but will often be seen as add-ons and therefore do not need to be NPO. These patients will be worked into the ultrasound schedule as requested.
Purpose: Screening for abdominal aortic aneurysm (see above).
- Longitudinal distal abdominal aorta.
- Transverse distal abdominal aorta.
- If AAA greater than 3 cm is discovered then a longitudinal image of each iliac artery will be documented.
- Reports will be dictated in the same fashion as any other ultrasound exam.