Recurrence plots and Shannon entropy for a dynamical analysis of asynchronisms in noninvasive mechanical ventilation

Recurrence plots were introduced to quantify the recurrence properties of chaotic dynamics. Hereafter, the recurrence quantification analysis was introduced to transform graphical interpretations into statistical analysis. In this spirit, a new definition for the Shannon entropy was recently introdu...

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Bibliographic Details
Published in:Chaos (Woodbury, N.Y.) N.Y.), 2007-03, Vol.17 (1), p.013115-013115
Main Authors: Rabarimanantsoa, H., Achour, L., Letellier, C., Cuvelier, A., Muir, J.-F.
Format: Article
Language:English
Subjects:
Algorithms
Biological Clocks
Computer Simulation
Humans
Lung - physiopathology
Models, Biological
Oscillometry - methods
Pulmonary Gas Exchange
Respiration, Artificial - methods
Respiratory Insufficiency - physiopathology
Respiratory Insufficiency - rehabilitation
Respiratory Mechanics
Therapy, Computer-Assisted - methods
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Summary:Recurrence plots were introduced to quantify the recurrence properties of chaotic dynamics. Hereafter, the recurrence quantification analysis was introduced to transform graphical interpretations into statistical analysis. In this spirit, a new definition for the Shannon entropy was recently introduced in order to have a measure correlated with the largest Lyapunov exponent. Recurrence plots and this Shannon entropy are thus used for the analysis of the dynamics underlying patient assisted with a mechanical noninvasive ventilation. The quality of the assistance strongly depends on the quality of the interactions between the patient and his ventilator which are crucial for tolerance and acceptability. Recurrence plots provide a global view of these interactions and the Shannon entropy is shown to be a measure of the rate of asynchronisms as well as the breathing rhythm.
ISSN:1054-1500
1089-7682
DOI:10.1063/1.2435307