Deep Feature Learning for Sudden Cardiac Arrest Detection in Automated External Defibrillators

Ventricular fibrillation and ventricular tachycardia (VF/VT), known as shockable (SH) rhythms, are the mainly cause of sudden cardiac arrests (SCA), which is cured efficiently by the automated external defibrillator (AED). The performance of the shock advice algorithm (SAA) applied in the AED has be...

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Bibliographic Details
Published in:Scientific reports 2018-11, Vol.8 (1), p.17196-12, Article 17196
Main Authors: Nguyen, Minh Tuan, Nguyen, Binh Van, Kim, Kiseon
Format: Article
Language:English
Subjects:
639/166/985
692/4019/2776
Algorithms
Automation
Cardiac arrest
Defibrillators
EKG
Fibrillation
Heart
Humanities and Social Sciences
Learning algorithms
multidisciplinary
Neural networks
Science
Science (multidisciplinary)
Tachycardia
Ventricle
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Summary:Ventricular fibrillation and ventricular tachycardia (VF/VT), known as shockable (SH) rhythms, are the mainly cause of sudden cardiac arrests (SCA), which is cured efficiently by the automated external defibrillator (AED). The performance of the shock advice algorithm (SAA) applied in the AED has been improved by using machine learning technique and variously conventional features, recently. In this paper, we propose a novel algorithm with relatively high performance for the SCA detection on electrocardiogram (ECG) signal. The algorithm consists of a convolutional neural network as a feature extractor (CNNE) and a Boosting (BS) classifier. A grid search with nested 5-folds cross validation (CV) is used to select the CNNE trained with preprocessed ECG, SH, and NSH signals using the modified variational mode decomposition technique. The deep feature vector learned by this CNNE is extracted at the first fully connected layer and then fed into BS classifier to validate its performance using 5-folds CV procedure. The secondary learning of the BS classifier and the use of three input channels for the CNNE improve certainly the detection performance of the proposed SAA with the validated accuracy of 99.26%, sensitivity of 97.07%, and specificity of 99.44%.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-018-33424-9