Combined use of three-dimensional rotational angiogram of left atrium and circular multi-electrode ablation catheter for pulmonary vein isolation  

作　　者：TANG Min Charalampos Kriatselis Sotiris Nedios Mathias Roser Stephan Goetze Eckard Fleck Jin-Hong Gerds-Li 

机构地区：[1]Department of Arrhythmia, Fuwai Cardiovascular Hospital,Chinese Academy of Medical Sciences ＆ Peking Union Medical College, Beijing 100037, China [2]Department of Internal Medicine/Cardiology, German Heart Institute Berlin, 13353, Germany

出　　处：《Chinese Medical Journal》2012年第1期144-148,共5页中华医学杂志（英文版）

摘　　要：Background A novel circular pulmonary vein ablation catheter （PVAC） has been introduced for pulmonary vein isolation （PVI）.Accurate delineation of left atrium-pulmonary vein （LA-PV） anatomy is important for this technique.The aim of this study was to test whether the 3-dimensional rotational angiography （3D RTA） of the left atrium can facilitate PVI using PVAC technique.Methods Twenty patients with paroxysmal atrial fibrillation （AF） were enrolled in this study.The 3D RTA was reconstructed and registered with live fluoroscopy in all the patients.AF ablation was performed with a PVAC catheter in the navigation of registered 3D RTA.Results The 3DRTA image was successfully reconstructed and registered with live fluoroscopy in all patients （100%）.The LA-PV anatomy was delineated clearly in all patients.Navigation of the PVAC inside the registered 3D RTA,ensured accurate placement within the atrium to perform ablation,and the PVAC was correctly placed inside the PV ostium to verify the PVI.All the PVs were isolated.Total procedural time was （87.5±12.1） minutes,and fluoroscopy time was （20.1±6.3） minutes.Follow-up after （7.1±1.5） months showed freedom from AF in 70% （14/20） patients.No PV stenosis was observed.Conclusions Intraprocedure reconstructed and registered 3D RTA can clearly delineate the LA-PV anatomy in real-time.The results demonstrate the feasibility and reliability of combining use of 3DRA and PVAC in AF ablation procedures.Background A novel circular pulmonary vein ablation catheter （PVAC） has been introduced for pulmonary vein isolation （PVI）.Accurate delineation of left atrium-pulmonary vein （LA-PV） anatomy is important for this technique.The aim of this study was to test whether the 3-dimensional rotational angiography （3D RTA） of the left atrium can facilitate PVI using PVAC technique.Methods Twenty patients with paroxysmal atrial fibrillation （AF） were enrolled in this study.The 3D RTA was reconstructed and registered with live fluoroscopy in all the patients.AF ablation was performed with a PVAC catheter in the navigation of registered 3D RTA.Results The 3DRTA image was successfully reconstructed and registered with live fluoroscopy in all patients （100%）.The LA-PV anatomy was delineated clearly in all patients.Navigation of the PVAC inside the registered 3D RTA,ensured accurate placement within the atrium to perform ablation,and the PVAC was correctly placed inside the PV ostium to verify the PVI.All the PVs were isolated.Total procedural time was （87.5±12.1） minutes,and fluoroscopy time was （20.1±6.3） minutes.Follow-up after （7.1±1.5） months showed freedom from AF in 70% （14/20） patients.No PV stenosis was observed.Conclusions Intraprocedure reconstructed and registered 3D RTA can clearly delineate the LA-PV anatomy in real-time.The results demonstrate the feasibility and reliability of combining use of 3DRA and PVAC in AF ablation procedures.

关 键 词：atrial fibrillation ablation ANGIOGRAPHY three dimension 

分 类 号：TQ577.42[化学工程—精细化工] TP391[自动化与计算机技术—计算机应用技术]