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The computation of atrial fibrillation chaos characteristics based on wavelet analysis

  • Jianrong Hou*
  • , Hui Zhao
  • , Dan Huang
  • *此作品的通讯作者
  • Shanghai Jiao Tong University

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Atrial fibrillation data series show the non-linear and chaos characters in the process of time-space kinetics evolution. In the case of unknowing the fractal dimension of atrial fibrillation chaos, the process of querying the similarity of diagnosis curve figure will be affected to a certain degree. An evaluation formula of varying-time Hurst index is established by wavelet and the algorithm of varying-time index is presented, which is applied to extract the characteristics of the atrial fibrillation in this paper. The diagnosis of atrial fibrillation curve figure can be done at some resolution ratio level. The results show that the time-varying fractal dimension rises when atrial fibrillation begins, while it falls when atrial fibrillation ends. The begin and the end characteristics of atrial fibrillation can be successfully detected by means of the change of the time-varying fractal dimension. The results also indicate that the complexity of heart rate variability (HRV) decreases at the beginning of atrial fibrillation. The effectiveness of the method is validated by means of the HRV example in the end.

源语言英语
主期刊名Advanced Intelligent Computing Theories and Applications
主期刊副标题With Aspects of Theoretical and Methodological Issues - Third International Conference on Intelligent Computing, ICIC 2007, Proceedings
出版商Springer Verlag
803-809
页数7
ISBN(印刷版)9783540741701
DOI
出版状态已出版 - 2007
活动3rd International Conference on Intelligent Computing, ICIC 2007 - Qingdao, 中国
期限: 21 8月 200724 8月 2007

出版系列

姓名Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
4681 LNCS
ISSN(印刷版)0302-9743
ISSN(电子版)1611-3349

会议

会议3rd International Conference on Intelligent Computing, ICIC 2007
国家/地区中国
Qingdao
时期21/08/0724/08/07

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