Left atrial reservoir strain measurements derived from intracardiac echocardiography in patients with atrial fibrillation: comparison with transthoracic echocardiography.

IF 1.9 3区 医学 Q3 CARDIAC & CARDIOVASCULAR SYSTEMS Cardiovascular Ultrasound Pub Date : 2023-02-24 DOI:10.1186/s12947-023-00302-y
Jingru Lin, Yuqi Cai, Xu Meng, Shangyu Liu, Fengyang Wang, Limin Liu, Zhenhui Zhu, Mengyi Liu, Ligang Ding, Weichun Wu, Hao Wang, Yan Yao
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引用次数: 2

Abstract

Background: Intracardiac echocardiography (ICE) provides accurate left atrial (LA) anatomical information in the procedure of atrial fibrillation (AF) ablation but lacks LA functional assessment. LA reservoir strain (LASr) is an excellent marker of LA reservoir function. This study aimed to assess the agreement between LASr derived from ICE and transthoracic echocardiography (TTE) in AF patients and analyze the reproducibility of LASr assessed by ICE combined with speckle tracking imaging.

Methods: This study prospectively enrolled 110 patients with a clinical diagnosis of AF who were ready for AF ablation, including 71 patients with paroxysmal AF and 39 with persistent AF. TTE and ICE examinations were performed on each individual before AF ablation. LASr measurements derived from ICE and TTE images were using dedicated LA-tracking software. Pearson correlation coefficients (r) and Bland-Altman plots were used to evaluate the agreement of LASr between the two modalities. Intraclass correlation coefficients (ICCs) were used to assess intra- and inter-observer reproducibility.

Results: The agreement between LASr obtained from ICE and TTE, especially between LASrLPV (LASr derived from LA left pulmonary vein view of ICE) and LASrTTE (LASr derived from TTE) were good in both paroxysmal and persistent AF patients [r = 0.890 (P < 0.001) for overall population; r = 0.815 (P < 0.001) and Bias ± LOA: -0.3 ± 9.9% for paroxysmal AF; r = 0.775 (P < 0.001) and Bias ± LOA: -2.6 ± 3.9% for persistent AF, respectively]. But the values of LASr derived from ICE were slightly lower than those of TTE, especially in patients with persistent AF. The ICCs for LASr derived from ICE were excellent (all ICCs > 0.90).

Conclusions: In patients with AF, LASr derived from ICE demonstrated excellent reproducibility and showed good agreement with LASr obtained from TTE. Obtaining LASr from ICE images may be a supplementary method to evaluate LA reservoir function in AF patients and expands the potential of ICE in the field of cardiac function assessment.

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心房颤动患者心内超声心动图得出的左心房贮液应变测量:与经胸超声心动图的比较。
背景:心内超声心动图(ICE)在房颤(AF)消融过程中提供准确的左房(LA)解剖信息,但缺乏左房功能评估。储层应变(LASr)是表征储层功能的良好指标。本研究旨在评估AF患者由ICE获得的LASr与经胸超声心动图(TTE)之间的一致性,并分析由ICE联合斑点跟踪成像评估LASr的可重复性。方法:本研究前瞻性纳入110例临床诊断为房颤且准备行房颤消融治疗的患者,其中阵发性房颤71例,持续性房颤39例。每位患者在房颤消融前进行TTE和ICE检查。从ICE和TTE图像中获得的LASr测量使用专用的la跟踪软件。使用Pearson相关系数(r)和Bland-Altman图来评估两种模式之间LASr的一致性。类内相关系数(ICCs)用于评估观察者内部和观察者之间的可重复性。结果:阵发性和持续性房颤患者的LASr与TTE的一致性较好,尤其是LASrLPV (ICE左肺静脉LASr)和TTE (TTE LASr)的一致性较好[r = 0.890 (P 0.90)]。结论:在AF患者中,ICE获得的LASr具有出色的再现性,并与TTE获得的LASr具有良好的一致性。从ICE图像中获取LASr可作为评价房颤患者LA储层功能的补充方法,拓展ICE在心功能评价领域的潜力。
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来源期刊
Cardiovascular Ultrasound
Cardiovascular Ultrasound CARDIAC & CARDIOVASCULAR SYSTEMS-
CiteScore
4.10
自引率
0.00%
发文量
28
审稿时长
>12 weeks
期刊介绍: Cardiovascular Ultrasound is an online journal, publishing peer-reviewed: original research; authoritative reviews; case reports on challenging and/or unusual diagnostic aspects; and expert opinions on new techniques and technologies. We are particularly interested in articles that include relevant images or video files, which provide an additional dimension to published articles and enhance understanding. As an open access journal, Cardiovascular Ultrasound ensures high visibility for authors in addition to providing an up-to-date and freely available resource for the community. The journal welcomes discussion, and provides a forum for publishing opinion and debate ranging from biology to engineering to clinical echocardiography, with both speed and versatility.
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