Multidetector computed tomography imaging of aortoenteric fistula

Area of Science:

• Radiology
• Vascular Surgery
• Medical Imaging

Background:

• Secondary aortoenteric fistula (AEF) is a rare but serious complication following aortic graft surgery.
• Early and accurate diagnosis is crucial for patient management and outcomes.

Observation:

• This study presents three case reports detailing multidetector computed tomography (CT) findings in patients with secondary AEF.
• Imaging included axial views, multiplanar reformats, and 3D reconstructions to visualize the fistula.
• AEF were observed in both early and late post-grafting phases and at various anastomosis types (end-to-end, end-to-side).

Findings:

• Multidetector CT demonstrated characteristic imaging features of secondary AEF.
• The study highlights the utility of CT in identifying the fistula, its location, and relationship to the aortic graft.
• CT proved to be a rapid and accurate diagnostic tool for bleeding AEF.

Implications:

• Multidetector CT is a valuable imaging modality for diagnosing secondary AEF.
• Prompt diagnosis via CT can lead to timely intervention and improved patient survival.
• These findings underscore the importance of considering CT in the workup of suspected AEF in patients with aortic grafts.