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中华心脏与心律电子杂志 ›› 2022, Vol. 10 ›› Issue (01) : 2 -6. doi: 10.3877/cma.j.issn.2095-6568.2022.01.002

所属专题: 总编推荐

临床研究

高分辨弥散加权成像在心房颤动导管消融围术期无症状脑栓塞发生的评估价值
王学成1, 陈子俊1, 俞娅娅2, 范丰华1, 谢欣1, 吴奕章1, 程典1, 周建1, 余金波1, 李小荣1, 杨兵1,(), 陈明龙3   
  1. 1. 200085 上海,同济大学附属东方医院心内科
    2. 211100 南京,南京医科大学附属江宁医院心内科
    3. 210029 南京,南京医科大学第一附属医院(江苏省人民医院)心血管内科
  • 收稿日期:2022-02-10 出版日期:2022-03-25
  • 通信作者: 杨兵
  • 基金资助:
    上海市浦东新区卫生和健康委员会项目(PW2019D-1); 上海市浦东新区临床高峰学科项目(PWYgf2021-01)

The value of high-resolution diffusion-weighted MRI in the diagnosis of asymptomatic cerebral emboli after atrial fibrillation ablation

Xuecheng Wang1, Zijun Chen1, Yaya Yu2, Fenghua Fan1, Xin Xie1, Yizhang Wu1, Dian Cheng1, Jian Zhou1, Jinbo Yu1, Xiaorong Li1, Bing Yang1,(), Minglong Chen3   

  1. 1. Department of Cardiology, Shanghai East Hospital,Tongji University, Shanghai 200120, China
    2. Department of Cardiology, Nanjing Jiangning Hospital, The Affiliated Hospital of Nanjing Medical University, Nanjing 211100, China
    3. Department of Cardiology, The First Affiliated Hospital with Nanjing Medical University (Jiangsu Province Hospital), Nanjing 210029, China
  • Received:2022-02-10 Published:2022-03-25
  • Corresponding author: Bing Yang
引用本文:

王学成, 陈子俊, 俞娅娅, 范丰华, 谢欣, 吴奕章, 程典, 周建, 余金波, 李小荣, 杨兵, 陈明龙. 高分辨弥散加权成像在心房颤动导管消融围术期无症状脑栓塞发生的评估价值[J]. 中华心脏与心律电子杂志, 2022, 10(01): 2-6.

Xuecheng Wang, Zijun Chen, Yaya Yu, Fenghua Fan, Xin Xie, Yizhang Wu, Dian Cheng, Jian Zhou, Jinbo Yu, Xiaorong Li, Bing Yang, Minglong Chen. The value of high-resolution diffusion-weighted MRI in the diagnosis of asymptomatic cerebral emboli after atrial fibrillation ablation[J]. Chinese Journal of Heart and Heart Rhythm(Electronic Edition), 2022, 10(01): 2-6.

目的

比较高分辨弥散加权成像(hDWI)和常规DWI(cDWI)检测心房颤动(房颤)导管消融相关无症状性脑栓塞(ACE)的发生率及其特征。

方法

连续入组2018年11月至2018年12月南京医科大学第一附属医院的32例房颤消融患者,以及上海市东方医院2019年1月至2019年2月的18例房颤消融患者。消融前24 h进行头颅高分辨率DWI检查以除外近期脑栓塞事件,消融后48 h内重复hDWI和cDWI检查。比较同一患者消融术后hDWI与cDWI中ACE的发生率、数量、大小和位置。

结果

与cDWI相比,hDWI显示急性ACE的发生率更高(70%对42%,P<0.001),ACE病灶数量明显更多(102对42,P < 0.001),且hDWI测量的病灶尺寸较大(5.42 mm对4.21 mm,P < 0.001)。多因素回归分析显示,左心室射血分数受损(P=0.047)和术中激活凝血时间较低(P=0.003)与ACE发生相关。

结论

hDWI能够更好地显示房颤消融相关ACE的发病情况及病灶特点。在评估ACE的研究中应考虑磁共振设置。

Objective

To compare the incidence and characteristics of atrial fibrillation (AF) ablation-related asymptomatic cerebral emboli(ACE) between high-resolution diffusion-weighted imaging(hDWI) and conventional DWI(cDWI).

Methods

Thirty eight consecutive AF patients in Jiangsu Province Hospital from November 2018 to December 2018, and 18 consecutive AF patients in Shanghai East Hospital from January 2019 to February 2019 who underwent ablation were recruited. All the patients received hDWI, in order to exclude recent events of cerebral embolism. High-resolution DWI and conventional DWI were performed after ablation within 48 h, and the incidence, number, size, and location of ACE in the same patient were compared.

Results

High-resolution DWI showed a higher incidence of acute ACE (70% vs. 42%, P<0.001), a significantly higher number of ACE lesions (102 vs. 42, P<0.001), and a larger ACE size (5.42 mm vs. 4.21 mm, P<0.001) compared to cDWI. Multivariate regression analysis revealed that impaired left ventricular ejection fraction (P=0.012) and low intraoperative active clotting time (P=0.009) were associated with the incidence of ACE.

Conclusion

High-resolution DWI showed higher incidence and greater features of ACE after AF ablation, and MRI settings should be considered in studies evaluating ACE.

表1 心房颤动消融术后基于头颅hDWI的ACE与非ACE患者基线资料比较
表2 消融后头颅cDWI和hDWI的磁共振结果比较[例(%)]
表3 基于头颅hDWI的ACE单变量与多变量回归模型
图1 术中激活血时间预测无症状性栓塞发生的ROC曲线注:ROC为受试者工作特征曲线;AUC为曲线下面积
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