Artículo
Classification of ischemic and non-ischemic cardiac events in Holter recordings based on the continuous wavelet transform
Fernández Biscay, Carolina
; Arini, Pedro David
; Rincon Soler, Anderson Ivan
; Bonomini, Maria Paula
Fecha de publicación:
05/2020
Editorial:
Springer Heidelberg
Revista:
Medical And Biological Engineering And Computing
ISSN:
0140-0118
e-ISSN:
1741-0444
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Holter recordings are widely used to detect cardiac events that occur transiently, such as ischemic events. Much effort has been made to detect early ischemia, thus preventing myocardial infarction. However, after detection, classification of ischemia has still not been fully solved. The main difficulty relies on the false positives produced because of non-ischemic events, such as changes in the heart rate, the intraventricular conduction or the cardiac electrical axis. In this work, the classification of ischemic and non-ischemic events from the long-term ST database has been improved, using novel spectral parameters based on the continuous wavelet transform (CWT) together with temporal parameters (such as ST level and slope, T wave width and peak, R wave peak, QRS complex width). This was achieved by using a nearest neighbour classifier of six neighbours. Results indicated a sensitivity and specificity of 84.1% and 92.9% between ischemic and non-ischemic events, respectively, resulting a 10% increase of the sensitivity found in the literature. Extracted features based on the CWT applied on the ECG in the frequency band 0.5?4 Hz provided a substantial improvement in classifying ischemic and non-ischemic events, when comparing with the same classifier using only temporal parameters.
Palabras clave:
CARDIAC ISCHEMIA
,
CLASSIFICATION ANALYSIS
,
CONTINUOUS WAVELET TRANSFORM
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Identificadores
Colecciones
Articulos(IAM)
Articulos de INST.ARG.DE MATEMATICAS "ALBERTO CALDERON"
Articulos de INST.ARG.DE MATEMATICAS "ALBERTO CALDERON"
Citación
Fernández Biscay, Carolina; Arini, Pedro David; Rincon Soler, Anderson Ivan; Bonomini, Maria Paula; Classification of ischemic and non-ischemic cardiac events in Holter recordings based on the continuous wavelet transform; Springer Heidelberg; Medical And Biological Engineering And Computing; 58; 5; 5-2020; 1069-1078
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