Detection of complex atrial arrhythmias in resting ECG

Author

Reddy, BRS ; Elko, PP ; Christenson, DW ; Rowlandson, GI

Author_Institution

Marquette Electron. Inc, Milwaukee, WI, USA

fYear

1994

fDate

25-28 Sep 1994

Firstpage

777

Lastpage

780

Abstract

Existing computerized methods of rhythm analysis are far from satisfactory for detecting complex atrial arrhythmias (CAAs) in surface ECG. Previously the authors reported a method to detect P waves. Now they describe a contextual analysis to exclude spurious waves and to improve detection of CCAs. ECGs (n=567) with sinus rhythm and CAAs (fibrillation, flutter, AV block & dissociation and junctional rhythms) were analyzed. Median QRST was subtracted from the raw data and atrial waves were detected and measured (duration, PR and PP intervals). The context of the blocked atrial waves was examined using their measurements and the spurious waves were excluded. Rhythm analysis was performed using the overall context of the P waves and QRS complexes. The resulting accuracies for detecting CAAs were better than those obtained without the contextual analysis

Keywords

electrocardiography; medical signal processing; AV block; P waves detection; blocked atrial waves; complex atrial arrhythmias; computerized methods; computerized rhythm analysis; contextual analysis; fibrillation; flutter; junctional rhythms; median QRST; resting ECG; spurious waves exclusion; Algorithm design and analysis; Atrial fibrillation; Computer aided analysis; Electrocardiography; Noise level; Noise shaping; Performance analysis; Rhythm; Sensitivity and specificity; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology 1994

Conference_Location

Bethesda, MD

Print_ISBN

0-8186-6570-X

Type

conf

DOI

10.1109/CIC.1994.470070

Filename

470070