2026-04-17T13:53:49Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/86862025-11-20T13:50:42Zcom_2072_1057col_2072_478799col_2072_478917

A new estimator to minimize the error due to breathing in the measurement of respiratory impedance Navajas Navarro, Daniel Farré Ventura, Ramon Rotger i Estapé, Maria del Mar Peslin, René Errors científics Mesurament Biomedical measurement Measurement errors Pneumodynamics This paper presents a new respiratory impedance estimator to minimize the error due to breathing. Its practical reliability was evaluated in a simulation using realistic signals. These signals were generated by superposing pressure and flow records obtained in two conditions: 1) when applying forced oscillation to a resistance- inertance- elastance (RIE) mechanical model; 2) when healthy subjects breathed through the unexcited forced oscillation generator. Impedances computed (4-32 Hz) from the simulated signals with the new estimator resulted in a mean value which was scarcely biased by the added breathing (errors less than 1 percent in the mean R, I , and E ) and had a small variability (coefficients of variation of R, I, and E of 1.3, 3.5, and 9.6 percent, respectively). Our results suggest that the proposed estimator reduces the error in measurement of respiratory impedance without appreciable extracomputational cost. 2009-06-17T08:40:18Z 2009-06-17T08:40:18Z 1988 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 0018-9294 https://hdl.handle.net/2445/8686 35251 eng Reproducció del document publicat a http://dx.doi.org/10.1109/10.8684 IEEE Transactions on Biomedical Engineering, 1988, vol. 35, núm. 12, p. 1001-1005. http://dx.doi.org/10.1109/10.8684 (c) IEEE, 1988 info:eu-repo/semantics/openAccess 5 p. application/pdf application/pdf IEEE Articles publicats en revistes (Ciències Fisiològiques)