Detection of physiological singularities in respiratory dynamics analyzed by recurrence quantification analysis of tracheal sounds

被引：14
|
作者：
Vena, A
Conte, E
Perchiazzi, G
Federici, A
Giuliani, R
Zbilut, JP
机构：
[1] Rush Univ, Dept Mol Biophys & Physiol, Chicago, IL 60612 USA
[2] Univ Bari, Dept Emergency & Transplantat, Bari, Italy
[3] Bari Univ Hosp, Dept Pharmacol & Human Physiol, Bari, Italy
[4] Univ Bari, Ctr Innovat Technol Signal Detect & Proc, TIRES, Bari, Italy
来源：
CHAOS SOLITONS & FRACTALS | 2004年 / 22卷 / 04期
关键词：
D O I：
10.1016/j.chaos.2004.03.005
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
Following a previous analysis that was performed on lung sounds of right and left apexes [Chaos, Solitons Fractals 2004;21:869-77], in the present paper we studied tracheal sounds by recurrence quantification analysis, adding chaos analysis as estimation of correlation dimension and Lyapunov spectrum. The results confirm the presence of singularitics indicating that respiratory dynamics is controlled by a discrete non-deterministic dynamics based on violation of Lipschitz conditions. On the basis of the results, it is also evidenced the possibility to introduce new indexes having interest in respiratory diagnostic routine. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码：869 / 881
页数：13
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