Measurement of dead-space in a model lung using an oscillating inspired argon signal
| Autor: | A. M. S. Black, C. E. W. Hahn, P. A. Oakley, M.C. Sainsbury, L. Xiong, E.M. Williams, David J. Gavaghan |
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| Rok vydání: | 1994 |
| Předmět: |
Respiratory rate
Dead space Partial Pressure chemistry.chemical_element Forcing (mathematics) Signal Models Biological Sinusoid Oscillometry Tidal Volume Ventilation-Perfusion Ratio Medicine Humans Argon Lung business.industry Respiration General Medicine Mechanics Respiratory Dead Space Pulmonary Alveoli Anesthesiology and Pain Medicine Amplitude Standard error chemistry business Pulmonary Ventilation |
| Zdroj: | Scopus-Elsevier |
| ISSN: | 0001-5172 |
| Popis: | In a model lung, airways dead-space can be accurately measured using a forced inspired oscillating argon signal, which varies sinusoidally about a mean concentration of 6% v/v with an amplitude of +/- 4% v/v. With sinusoid forcing periods longer than 120 seconds, and at a breathing rate of 13.4 breaths minute-1, the mean airways dead-space can be measured with a standard error of less than 5%. Sinusoid forcing periods shorter than 120 s provided inaccurate estimates of dead-space and so should not be used with this technique. |
| Databáze: | OpenAIRE |
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