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1988

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A new estimator to minimize the error due to breathing in the measurement of respiratory impedance

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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.

Recurs relacionat

Matèries

Errors científics, Mesurament

Matèries (anglès)

Biomedical measurement, Measurement errors, Pneumodynamics

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Articles publicats en revistes (Ciències Fisiològiques)

Citació

NAVAJAS NAVARRO, Daniel, et al. A new estimator to minimize the error due to breathing in the measurement of respiratory impedance. IEEE Transactions on Biomedical Engineering. 1988. Vol. 35, num. 12, pags. 1001-1005. ISSN 0018-9294. [consulted: 30 of September of 2026]. Available at: https://hdl.handle.net/2445/8686

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