title: [Hurst index based analysis of sinus arrhythmia and atrial arrhythmia].
abstract: This study sought to disclose whether Hurst index can be used as a criterion for distinguishing sinus and atrial arrhythmia signals. Normal sinus rhythm beats, atrial premature contraction (APC) beats, and sinus bradycardia (SBR) signals, were taken from the MIT-BIH standard database. Hurst index method was used to distinguish the two kinds of arrhythmia. The results showed that the Hurst exponents of three kinds of signals were larger than 0.5, but they were in different value region. The data indicated that the long-term relevant character was the best for normal signal, better for sinus bradycardia, and the worst for atrial premature beats. So Hurst index is a useful identification criterion for distinguishing sinus and atrial arrhythmia signals.
authors.affiliation: Image Processing and Image Communications Key Lab., College of Telecommunications & Information Engineering, Nanjing Univ. of Posts & Telecomm, Nanjing 210003, China.
authors.forename: Yingyan
authors.initials: Y
authors.lastname: Qiao
authors.forename: Jun
authors.initials: J
authors.lastname: Wang
mesh_terms: D000465:Algorithms; D001146:Arrhythmia, Sinus / Q000175:diagnosis* / Q000503:physiopathology; D018880:Atrial Premature Complexes / Q000175:diagnosis* / Q000503:physiopathology; D001919:Bradycardia / Q000175:diagnosis / Q000503:physiopathology; D003937:Diagnosis, Differential; D004562:Electrocardiography; D006801:Humans; D012815:Signal Processing, Computer-Assisted