Special Procedures - Renal Study

Also called: AV fistulagram or artificial graft

The reason to have a fistulagram is to assess renal access from an artificial connection of an artery and a vein that is not working properly. In trying to open the graft, the flow rate may not be high enough, venous pressures may be too high or the graft may clot off frequently.

The procedure involves placing a small needle into the graft and injecting contrast, which helps the radiologist to see better in the graft from arterial end to the venous end and also to see all the veins to the heart. Treatments such as renal dialysis access (venous angioplasty / stent) may be carried out to treat blockages that are found.