Utilizing CO ₂ Cone Beam Computed Tomography for Post-Procedure Completion Control Following Fenestrated Endovascular Repair of Complex Aortic Aneurysm With a Standardized CO ₂ Protocol

CO₂ CBCT is a feasible and effective alternative for completion imaging in complex FEVAR procedures for patients with CKD, potentially reducing the need for iodine contrast and the associated risk of nephropathy. A standardized CO₂ protocol can enhance procedural safety. Further research with larger cohorts is needed to confirm these findings.Clinical ImpactCO₂ serves as the preferred contrast medium for the endovascular treatment of patients with iodine contrast allergies or those afflicted with chronic kidney disease (CKD) to preserve further renal deterioration. Ensuring protection from potentially harmful substances is paramount during endovascular repair in such patients. Equally crucial is performing the procedure safely through a standardized protocol and confirming its accuracy upon completion. Nevertheless, the possibility of employing CO₂ for cone beam computed tomography provides invaluable insights into procedural efficacy, thereby enhancing outcomes for CKD patients undergoing complex endovascular repair.