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A Fast and Robust Time-Series Based Decision Rule for Identification of Atrial Fibrillation Arrhythmic Patterns in the ECG

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Escalona, OJ and Reina, ME (2010) A Fast and Robust Time-Series Based Decision Rule for Identification of Atrial Fibrillation Arrhythmic Patterns in the ECG. In: Computing in Cardiology, Belfast-UK. IEEE. Vol 37 4 pp. [Conference contribution]

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URL: http://www.cinc.org/archives/2010/

Abstract

Atrial fibrillation (AF) is an arrhythmic behaviour of the heart, which occurs when the myocardium of the atrial chambers enter into a sustained chaotic and fractionated muscular contraction dynamic. Reliable detection of AF episodes in ECG monitoring devices, is important for early treatment and health risks reduction. A decision rule for identifying AF arrhythmic patterns was derived from RR-intervals analysis of time-seriesgenerated from ECG recordings before, during and after AF episodes. Time-series elements were obtained by consecutive RR intervals time differences (dRR). In theproposed decision rule, two arguments must be satisfied for identifying an AF pattern within a window of 35 beats: (1) the number of dRR elements above 50 msabsolute value, is >10, and (2) there is a uniform dispersion of all the corresponding RR-interval elements within the same 35 beat window. Detection of AF using the proposed decision rule scheme was achieved with 96% exactitude, 93% sensitivity and 97% specificity. The longest case of processing time per ECG beat was of 129ms. Thiscomputing time requirement can enable real-time ECG processing algorithms for AF identification.

Item Type:Conference contribution (Poster)
Keywords:Atrial Fibrillation ECG Time Series Real-time ECG Algorithm Arrhythmia Detection Decision Rule AF Diagnosis Computational Cardiology Intelligent Processing AF Detection
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
ID Code:17361
Deposited By:Professor Omar Escalona
Deposited On:09 May 2012 13:24
Last Modified:09 May 2012 13:24

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