当前位置: X-MOL 学术PLOS ONE › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Activation recovery interval imaging of premature ventricular contraction
PLOS ONE ( IF 3.7 ) Pub Date : 2018-06-15 , DOI: 10.1371/journal.pone.0196916
Ting Yang 1 , Long Yu 1 , Qi Jin 2 , Liqun Wu 2 , Bin He 1, 3
Affiliation  

Dispersion of ventricular repolarization due to abnormal activation contributes to the susceptibility to cardiac arrhythmias. However, the global pattern of repolarization is difficult to assess clinically. Activation recovery interval (ARI) has been used to understand the properties of ventricular repolarization. In this study, we developed an ARI imaging technique to noninvasively reconstruct three-dimensional (3D) ARI maps in 10 premature ventricular contraction (PVC) patients and evaluated the results with the endocardial ARI maps recorded by a clinical navigation system (CARTO). From the analysis results of a total of 100 PVC beats in 10 patients, the average correlation coefficient is 0.86±0.05 and the average relative error is 0.06±0.03. The average localization error is 4.5±2.3 mm between the longest ARI sites in 3D ARI maps and those in CARTO endocardial ARI maps. The present results suggest that ARI imaging could serve as an alternative of evaluating global pattern of ventricular repolarization noninvasively and could assist in the future investigation of the relationship between global repolarization dispersion and the susceptibility to cardiac arrhythmias.



中文翻译:

室性早搏的激活恢复间期成像

由于异常激活导致的心室复极分散导致心律失常的易感性。然而,复极的整体模式很难在临床上评估。激活恢复间隔(ARI)已被用来了解心室复极的特性。在这项研究中,我们开发了一种 ARI 成像技术,可以无创地重建 10 名室性早搏 (PVC) 患者的三维 (3D) ARI 图,并使用临床导航系统 (CARTO) 记录的心内膜 ARI 图评估结果。从10例患者共100次PVC搏动的分析结果来看,平均相关系数为0.86±0.05,平均相对误差为0.06±0.03。3D ARI 图和 CARTO 心内膜 ARI 图最长 ARI 位点之间的平均定位误差为 4.5±2.3 mm。目前的结果表明,ARI 成像可以作为无创评估心室复极整体模式的替代方案,并有助于未来研究整体复极离散度与心律失常易感性之间的关系。

更新日期:2018-06-16
down
wechat
bug