Carbon dioxide CT angiography during endovascular treatment of bilateral common iliac disease with angio-CT utilisation

This paper presents the application of carbon dioxide for CT imaging during an endovascular procedure to help characterise unexpected bilateral common iliac artery stenosis utilising an angio-CT system, confirming its application in interventional radiology while maintaining sterility. A 78 year old male was referred to the Radiology Interventional Suite with left lower limb rest pain. On imaging via digital subtraction angiography and CT utilising both iodinated contrast and carbon-dioxide (CO₂), endovascular treatment of bilateral CIA stenosis was performed with good clinical result. The case presented demonstrates the advanced imaging techniques possible in suites that have ready access to angiography and conventional CT. CO₂ CT angiography is optimally performed on combined Angio-CT systems where CT and angiography system are integrated into a single room.