Impact of volume of pulmonary veins antrum and left atrium on recurrence of atrial fibrillation after radiofrequency catheter ablation in a mid and short-term period
Background The purpose of this research is to reconstruct 3-dimensional (3D) structure of the pulmonary veins and the left atrium through multislice computed tomography (MSCT),and then compare the variation of ostia, the antrum volume of pulmonary veins and the left atrium volume in AF patients with and without recurrence.Methods We consecutively enrolled sixty-five AF patients who accept RFCA therapy from June 2008 to January 2009;patients were followed up for one year from the day of RFCA.All patients were injected with intravenous constrast medium before being evaluated by 16-slice computed tomography (MSCT).The 3D reconstruction of PVs and left atrium was transformed into AW4.2 system, and we calculated the variation of pulmonary veins by Cardiac IQ software.Diameters of PVs ostia were measured by virtual endoscopy.The antrum volume of PVs and the left atrium volume were calculated by software volume rendering (VR).
HOU Li-na ZANG Xiao-biao WANG Ye WANG Xiao-hui WANG Xiao-dong HE Ming-zhe ZHANG Shu-long
Department of Cardiology,the First Affiliated Hospital of Dalian Medical University,Dalian,China
国内会议
北京
英文
101-101
2013-03-20（万方平台首次上网日期，不代表论文的发表时间）