Document Type
Conference Proceeding
Language
eng
Format of Original
3 p.
Publication Date
9-22-2002
Publisher
Institute of Electrical and Electronics Engineers
Source Publication
Computers in Cardiology, 2002
Source ISSN
0276-6547
Original Item ID
doi: 10.1109/CIC.2002.1166747
Abstract
A novel, nonlinear, phase space based method to quickly and accurately identify life-threatening arrhythmias is proposed. The accuracy of the proposed method in identifying sinus rhythm (SR), monomorphic ventricular tachycardia (MVT), polymorphic VT (PVT), and ventricular fibrillation (VF) for signals of at least 0.5 s duration was determined for six different ECG signal lengths. The ECG recordings were transformed into a phase space, and statistical features of the resulting attractors were learned using artificial neural networks. Classification accuracies for SR, MVT, PVT and VF were 93-96, 95-100, 79-91, and 81-88%, respectively. As expected, classification accuracy for the proposed method was essentially equivalent for ECG signals longer than 1 s. Surprisingly, classification accuracy for this new method did not degrade for 0.5 s ECG signals, indicating that even such short duration signals contain structures predictive of rhythm type. The phase space method's classification accuracy was higher for all segment durations compared to two other methods.
Recommended Citation
Povinelli, Richard J.; Roberts, Felice M.; Johnson, Michael T.; and Ropella, Kristina M., "Are Nonlinear Ventricular Arrhythmia Characteristics Lost, As Signal Duration Decreases?" (2002). Electrical and Computer Engineering Faculty Research and Publications. 121.
https://epublications.marquette.edu/electric_fac/121
Comments
Accepted version. Published as part of the proceedings of the conference, Computers in Cardiology, 2002: 221-224. DOI. © 2002 Institute of Electrical and Electronic Engineers (IEEE). Used with permission.