Comparison of atrial rhythm extraction techniques for the estimation of the main atrial frequency from the 12-lead electrocardiogram in atrial fibrillation

Computers in cardiology Pub Date : 2002-09-22 DOI:10.1109/CIC.2002.1166699

P. Langley, M. Stridh, J. J. Rieta, L. Sornmo, J. Millet-Roig, A. Murray

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引用次数: 27

Abstract

One of the greatest challenges in analysis of the atrial rhythm from the ECG is to distinguish the atrial component from the large ventricular components. Our aim was to compare three techniques of atrial rhythm extraction from three groups working on this problem. 12-lead ECG data from 7 patients in atrial fibrillation were analysed. For extraction of the atrial rhythm, spatiotemporal QRST cancellation was performed by the Lund group, blind source separation by the Valencia group, and principal component analysis by the Newcastle group. Peak atrial frequency was determined by Fourier transform of the signal with the largest atrial activity. All algorithms were successful in distinguishing the atrial rhythm from the low frequency ventricular rhythm. The mean (range) atrial frequency was 6.5 (5.9 7.6) Hz (Lund), 6.7 (5.7 - 7.9) Hz (Valencia) and 6.5 (5.9 - 8.2) Hz (Newcastle). There were no significant differences between the atrial frequencies estimated by each of the techniques.

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从12导联心电图估计心房颤动主频率的心房节律提取技术的比较

从心电图分析心房节律的最大挑战之一是区分心房成分和大心室成分。我们的目的是比较三组在这个问题上工作的心房节律提取的三种技术。对7例房颤患者的12导联心电图资料进行分析。对于心房节律的提取，Lund组进行时空QRST对消，Valencia组进行盲源分离，Newcastle组进行主成分分析。通过心房活动最大的信号的傅里叶变换确定心房频率峰值。所有算法都能成功地区分心房节律和低频心室节律。平均(范围)心房频率为6.5 (5.9 - 7.6)Hz(隆德)，6.7 (5.7 - 7.9)Hz(瓦伦西亚)和6.5 (5.9 - 8.2)Hz(纽卡斯尔)。每一种技术估计的心房频率之间没有显著差异。

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Computers in cardiology

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