| Aneurysm Diameter | Imaging Interval |
| <2.0 cm | Yearly follow-up is recommended; follow-up interval may be extended depending on comorbidities and life expectancy |
| ≥2.0 cm | Endovascular therapy should be considered |
- “Splenic artery aneurysms occur more frequently in women.”
- “Risk factors associated with rupture include rapidly increasing size, occurrence in women of childbearing years, cirrhosis (especially associated with α1 antitrypsin deficiency), and symptoms that can be attributable to the aneurysm.”
- “Smaller aneurysms probably can be safely followed, although the clinical risk factors for rupture should be carefully assessed.”
Reference: Khosa F, Krinsky G, Macari M, Yucel EK, Berland LL. Managing Incidental Findings on Abdominal and Pelvic CT and MRI, Part 2: White Paper of the ACR Incidental Findings Committee II on Vascular Findings. J Am Coll Radiol 2013;10:789-794.
