Spatiotemporal QRST cancellation techniques for analysis of atrial fibrillation:: Methods and performance

被引：5

作者：

Stridh, M ^{[1
]}

Sörnmo, L ^{[1
]}

机构：

[1] Univ Lund, Dept Appl Elect, Signal Proc Grp, SE-22100 Lund, Sweden

来源：

COMPUTERS IN CARDIOLOGY 1998, VOL 25 | 1998年 / 25卷

关键词：

D O I：

10.1109/CIC.1998.731953

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

A new approach to QRST cancellation in ECGs with atrial fibrillation is presented. The method compensates for morphological changes caused by variations in the electrical ax is and uses linear transformations to combine multiple lead information. Based on an ECG database of 15 subjects with simulated atrial fibrillation, our results show that the spatiotemporal technique produces QRST cancellation which is superior to that obtained by straightforward average beat subtraction (ABS). The average energy in QRST-related errors, as compared to ABS, was reduced to 58 percent. The performance results obtained for recorded ECGs containing atrial fibrillation agreed very well with those of the simulated AF signals.

引用

页码：633 / 636

页数：4