The detection of non-stationary T-wave alternans: a modified correlation method / 生物医学工程学杂志
Journal of Biomedical Engineering
;
(6): 860-865, 2013.
Article
Dans Chinois
| WPRIM
| ID: wpr-352151
ABSTRACT
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.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Algorithmes
/
Simulation numérique
/
Traitement du signal assisté par ordinateur
/
Artéfacts
/
Électrocardiographie
/
Analyse en ondelettes
/
Méthodes
Type d'étude:
Etude diagnostique
Limites du sujet:
Humains
langue:
Chinois
Texte intégral:
Journal of Biomedical Engineering
Année:
2013
Type:
Article
Documents relatifs à ce sujet
MEDLINE
...
LILACS
LIS