Title
Cross-database evaluation of a multilead heartbeat classifier.
Abstract
In this paper, we studied the improvement in heartbeat classification achieved by including information from multilead ECG recordings in a previously developed and validated classification model. This model includes features from the RR interval series and morphology descriptors for each lead calculated from the wavelet transform. The experiments were carried out in the INCART database, available in Physionet, and the generalization was corroborated in private and public databases. In all databases, the AAMI recommendations for class labeling and results presentation were followed. Different strategies to integrate the additional information available in the 12-leads were studied. The best performing strategy consisted in performing principal component analysis to the wavelet transform of the available ECG leads. The performance indices obtained for normal beats were sensitivity (S) 98%, positive predictive value (P(+)) 93%; for supraventricular beats, (S) 86%, (P(+)) 91%; and for ventricular beats (S) 90%, (P(+)) 90%. The generalization capability of the chosen strategy was confirmed by applying the classifier to other databases with different number of leads with comparable results. In conclusion, the performance of the reference two-lead classifier was improved by taking into account additional information from the 12-leads.
Year
DOI
Venue
2012
10.1109/TITB.2012.2193408
IEEE Transactions on Information Technology in Biomedicine
Keywords
Field
DocType
correlation,principal component analysis,linear classifier,nickel,lead,wavelet analysis,wavelet transforms,performance indicator,wavelet transform,databases
Data mining,Computer science,Artificial intelligence,Classifier (linguistics),Wavelet transform,Heartbeat,Pattern recognition,RR interval,Heart beat,Correlation,Linear classifier,Database,Principal component analysis
Journal
Volume
Issue
ISSN
16
4
1558-0032
Citations 
PageRank 
References 
6
0.69
4
Authors
3
Name
Order
Citations
PageRank
Mariano Llamedo11106.79
Antoun Khawaja261.03
Juan Pablo Martínez346157.73