Details

Autor(en) / Beteiligte

• Yan, Kanghui
• Wan, Xiangkui
• Li, Minggui
• Xiang, Dingcheng

Titel

The detection of non-stationary T-wave alternans: a modified correlation method

Ist Teil von

• Sheng wu yi xue gong cheng xue za zhi, 2013-08, Vol.30 (4), p.860

Ort / Verlag

China

Erscheinungsjahr

2013

Quelle

MEDLINE

Beschreibungen/Notizen

• T-wave alternans (TWA) refers to a phenomenon appearing in the surface electrocardiograph (ECG) as a consistent fluctuation in morphology and amplitude of the T wave on an "every-other-beat" basis. Correlation method (CM) has a certain ability to detect the non-stationary TWA, but it is very sensitive to noise. In this paper we propose a modified correlation method to ensure a stable and accurate detection of non-stationary TWA. Compared to the CM, the method modifies the judge condition and uses the linear fitting to limit the noise to gain the ability of detecting of non-stationary TWA. Our simulation and clinical data assessment study demonstrates the improved performance of the proposed algorithm.