Application of integrating 64-slice CT image and the CARTO system in catheter ablation of atrial fibrillation
- VernacularTitle:应用64排CT图像整合Carto系统进行心房颤动导管消融
- Author:
Guoqing LI
;
Juan YAO
;
Peng REN
- Publication Type:Journal Article
- Keywords:
Atrial fibrillatiom;
Catheter ablation;
Tomography,X-ray computer;
Imaging,three-dimensional
- From:
Chinese Journal of Interventional Cardiology
1996;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the application of integrating 64-slice CT image with three-dimensional electroanatomic mapping(Carto-Merge) in guiding catheter ablation of atrial fibrillation(AF).Methods Fifteen patients with drug-refractory AF received catheter ablation of AF.64-slice CT scan was performee 1-3 days prior to the ablation procedures.Using a novel software package,the left atrium(LA)with PVs was segmented and extracted for image registration with a combination of landmark registration and surface registration.Results The integration of the CT image into the electroanatomic mapping system was performed successfully in all patients with an error of 2.11?0.82 mm.Thirty pairs of PVs were electrically isolated after circumferential rediogrequency pulmorary rein ablation.The mean procedure time was 170.51?38.47 minutes.Cardiac tamponade occurred in one patient.All the fifteen patients were free of AF recurrence after 3 months of follow up including the 2 cases of persistent AF who required antiarrhythmic drugs.No thromboembolic events or stenosis were observed.Conclusion Integration of 64-slice CT image into the CARTO system successfully performed in patients undergoing catheter ablation of AF and enhance the ablation success rate.
