Arteriovenous Fistula (AVF)


This is a CTA (computed tomographic angiography) image showing an AVF (arteriovenous fistula) in the right lower neck area. This scan was performed with a 16 channel multi-detector CT scanner (Siemens). This scan was completed in less than 30 seconds. This type of imaging became a routine imaging study in the last few years before any treatment attempt (either surgical ligation of the connection or embolization). Other images are DSA (or conventional arteriography) images demonstrating an AVF in the calf.

Arteriovenous fistulas may be congenital or acquired vascular malformations that may involve any organ system. They are usually symptomatic in young patients because they can cause high-output cardiac failure. A pulsatile mass or a bruit can be found at physical examination. Arteriovenous fistulas are generally curable with endovascular interventions (e.g., embolization).




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