CO2 for Use in Iliac Arterial Lower Extremity Percutaneous Transluminal Angioplasty and Stent Placement

In the past, CO2 has been in use for interventional procedures of the iliacs and lower

extremity arteries, primarily in patients who are allergic to iodinated contrast or in

renal failure. The ability to inject large volumes of CO2 between the guidewire and the

catheter makes it ideal in all patients to image pre-, during-, and postballoon angio-

plasty, as well as for stent placement both in the ipsilateral and, more importantly, in

contralateral access. The plastic bag delivery system provides very rapid injections and

permits large-volume injections with the guidewire in place.