Per accedir als documents amb el text complet, si us plau, seguiu el següent enllaç: http://hdl.handle.net/2117/27681

Analysis of the breathing pattern in elderly patients using the Hurst exponent applied to the respiratory flow signal
Tellez Gabriel, Juan Pablo; Herrera, Sergio; Benito Vales, Salvador; Giraldo Giraldo, Beatriz
Universitat Politècnica de Catalunya. Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial; Universitat Politècnica de Catalunya. BIOSPIN - Biomedical Signal Processing and Interpretation
Due to the increasing elderly population and the extensive number of comorbidities that affect them, studies are required to determine future increments in admission to emergency departments. Some of these studies could focus on the relation between chronic diseases and breathing pattern in elderly patients. Variations in the fractal properties of respiratory signals can be associated with several diseases. To determine the relationship between these variations and breathing patterns, and to quantify the fractal properties of respiratory flow signals, we estimated the Hurst exponent (H). Detrended fluctuation analysis (DFA) and discrete wavelet transform-based estimation (DWTE) methods were applied. The estimation methods were analyzed using simulated data series generated by fractional Gaussian noise. 43 elderly patients (19 patients with a non-periodic breathing pattern - nPB, and 24 patients with a periodic breathing pattern - PB) were studied. The results were evaluated according to the length of data and the number of averaged data series used to obtain a good estimation. The DWTE method estimated the respiratory flow signals better than the DFA method, and obtained Hurst values clustered by group. We found significant differences in the H exponent (p = 0.002) between PB and nPB patients, which showed different behavior in the fractal properties.
Peer Reviewed
Àrees temàtiques de la UPC::Enginyeria biomèdica::Electrònica biomèdica
Medical electronics
Respiració
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
         

Mostra el registre complet del document

Documents relacionats

Altres documents del mateix autor/a

Tellez Gabriel, Juan Pablo; Herrera, Sergio; Benito Vales, Salvador; Giraldo Giraldo, Beatriz
Giraldo Giraldo, Beatriz; Tellez, Joan P.; Herrera, Sergio; Benito Vales, Salvador
Garde Martínez, Ainara; Voss, Andreas; Caminal Magrans, Pere; Benito Vales, Salvador; Giraldo Giraldo, Beatriz
Giraldo Giraldo, Beatriz; Chaparro Preciado, Javier; Caminal Magrans, Pere; Benito Vales, Salvador
Chaparro Preciado, Javier; Giraldo Giraldo, Beatriz; Caminal Magrans, Pere; Benito Vales, Salvador