疤痕相关室性心动过速的无创心电图成像:与磁共振疤痕成像的关联

Omar A. Gharbia, Susumu Tao, A. Lardo, H. Halperin, Linwei Wang
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引用次数: 0

摘要

瘢痕性室性心动过速的常见情况是心肌瘢痕内残存组织的狭窄通道形成再入回路。由于无法对绝大多数不稳定的VTs进行定位,因此使用有创导管测绘来识别这些电路的关键组成部分是具有挑战性的。虽然心电图成像(ECGi)为不稳定室速的快速定位提供了一种很有前途的无创解决方案,但其在疤痕相关室速诊断中的有效性仍存在争议。在本文中,我们报告了将ECGi结果与晚期钆增强心脏磁共振成像(LGE-cMR)疤痕相结合的初步结果。我们报告了ECGi特征与CMR疤痕数据之间的定量关联,以及ECGi重建的VT电路与心肌疤痕和从LGE-CMR数据中识别的关键通道之间的定性关系。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Noninvasive Electrocardiographic Imaging of Scar-Related Ventricular Tachycardia: Association With Magnetic Resonance Scar Imaging
A common setting for scar-related ventricular tachycardia is a reentry circuit formed by narrow channels of surviving tissue inside the myocardial scar. It is challenging to identify the critical components of these circuits using invasive catheter mapping due to its inability to map the vast majority of unstable VTs. While electrocardiographic imaging (ECGi) provides a promising noninvasive solution for rapid mapping of unstable VTs, its validation in the setting of scar-related VT remains challeging. In this paper, we report our initial results in the effort to integrate ECGi results with late gadolinium enhanced cardiac magnetic resonance imaging (LGE-cMR) of scar. We report quantitative association between ECGi features and CMR scar data, as well as qualitative relation between ECGi-reconstructed VT circuits and myocardial scar and critical channels identified from LGE-CMR data.
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