Olivier Meyrignac1, Élise Arcis2, Marie-Charlotte Delchier2, Fatima-Zohra Mokrane2, Jean Darcourt2, Hervé Rousseau3, Béatrice Bouhanick4. 1. Department of Radiology, Institut Universitaire du Cancer de Toulouse, Oncopôle, 1 avenue Irène Joliot-Curie, 31059, Toulouse, France; Team 10, U1089, I2MC, INSERM, 1 avenue du Pr Jean Poulhes, 31400, Toulouse, France. Electronic address: meyrignac.olivier@iuct-oncopole.fr. 2. Department of Radiology, Rangueil Hospital, CHU of Toulouse, 1 avenue du Pr Jean Poulhes, 31400, Toulouse, France. 3. Team 10, U1089, I2MC, INSERM, 1 avenue du Pr Jean Poulhes, 31400, Toulouse, France; Department of Radiology, Rangueil Hospital, CHU of Toulouse, 1 avenue du Pr Jean Poulhes, 31400, Toulouse, France. 4. Department of Arterial Hypertension and Therapeutics, Rangueil Hospital, CHU of Toulouse, 1 avenue du Pr Jean Poulhes, 31400, Toulouse, France.
Abstract
PURPOSE: The aim of this study in a group of patients with primary aldosteronism was to evaluate the contribution of CB-CT (cone beam CT) to the overall success rate of adrenal vein sampling (AVS), and in particular to the selective cannulation of the right adrenal vein (RAV). METHOD: This was a retrospective single-center study including 91 AVS procedures performed by our consultant radiologist between March 2011 and January 2017. Fifty cases were performed with CB-CT and 50 were performed without. Angiography with CB-CT was carried out after RAV cannulation to check the accurate catheter position. For each patient, we collected technical and biochemical success rates, as well as irradiation data. RESULTS: The overall success rate of AVS with CB-CT was 80 %, vs. 44 % without (p = 0.00046), with right-sided selectivity of 88 % vs. 49 % (p < 0.0001). There was no significant increase in radiation exposure with CB-CT (p = 0.8206). Fluoroscopy time and quantity of iodine injected were significantly lower with CB-CT than without (p = 0.0039 and p < 0.0001). CONCLUSION: CB-CT allows a better evaluation of the selectivity of right-sided adrenal catheterization and greatly increases the overall success rate of AVS.
PURPOSE: The aim of this study in a group of patients with primary aldosteronism was to evaluate the contribution of CB-CT (cone beam CT) to the overall success rate of adrenal vein sampling (AVS), and in particular to the selective cannulation of the right adrenal vein (RAV). METHOD: This was a retrospective single-center study including 91 AVS procedures performed by our consultant radiologist between March 2011 and January 2017. Fifty cases were performed with CB-CT and 50 were performed without. Angiography with CB-CT was carried out after RAV cannulation to check the accurate catheter position. For each patient, we collected technical and biochemical success rates, as well as irradiation data. RESULTS: The overall success rate of AVS with CB-CT was 80 %, vs. 44 % without (p = 0.00046), with right-sided selectivity of 88 % vs. 49 % (p < 0.0001). There was no significant increase in radiation exposure with CB-CT (p = 0.8206). Fluoroscopy time and quantity of iodine injected were significantly lower with CB-CT than without (p = 0.0039 and p < 0.0001). CONCLUSION: CB-CT allows a better evaluation of the selectivity of right-sided adrenal catheterization and greatly increases the overall success rate of AVS.