ArticleRespiratory physiology & neurobiology2012
Constant-phase descriptions of canine lung, chest wall, and total respiratory system viscoelasticity: effects of distending pressure.
Article in Respiratory physiology & neurobiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Simulation of Central Airway Gas Flow Dynamics During Conventional and Multifrequency Ventilation.Journal of biomechanical engineering · 2025Article
- A comparison of endotracheal tube compensation techniques for the measurement of respiratory mechanical impedance at low frequencies.Journal of clinical monitoring and computing · 2022Article
- High-Frequency Oscillatory Ventilation and Ventilator-Induced Lung Injury: Size Does Matter.Critical care medicine · 2020Article
- Three Alveolar Phenotypes Govern Lung Function in Murine Ventilator-Induced Lung Injury.Frontiers in physiology · 2020Article
- Strain, strain rate, and mechanical power: An optimization comparison for oscillatory ventilation.International journal for numerical methods in biomedical engineering · 2019Article
- Computational Modeling of Primary Blast Lung Injury: Implications for Ventilator Management.Military medicine · 2019Article
- Targeted Versus Continuous Delivery of Volatile Anesthetics During Cholinergic Bronchoconstriction.Journal of engineering and science in medical diagnostics and therapy · 2018Article
- Parenchymal strain heterogeneity during oscillatory ventilation: why two frequencies are better than one.Journal of applied physiology (Bethesda, Md. : 1985) · 2018Article
- Intratidal Overdistention and Derecruitment in the Injured Lung: A Simulation Study.IEEE transactions on bio-medical engineering · 2017Article
- Impact of ventilation frequency and parenchymal stiffness on flow and pressure distribution in a canine lung model.Annals of biomedical engineering · 2013Article
- Effects of lung inflation on airway heterogeneity during histaminergic bronchoconstriction.Journal of applied physiology (Bethesda, Md. : 1985) · 2013Article
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2 authors.
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Abstract
The dynamic mechanical properties of the respiratory system reflect the ensemble behavior of its constituent structural elements. This study assessed the appropriateness of constant-phase descriptions of respiratory tissue viscoelasticity at various distending pressures. We measured the mechanical input impedance (Z) of the lungs, chest wall and total respiratory system in 12 dogs at mean airway pressures from 5 to 30 cm H(2)O. Each Z was fitted with a constant-phase model which provided estimates tissue damping (G), elastance (H), and hysteresivity (η=G/H). Both G and H sharply increased with increasing distending pressure for the lungs and chest wall, while η attained a minimum near 15-20 cm H(2)O. Model fitting errors for the lungs and total respiratory system increased for distending pressures greater than 20 cm H(2)O, indicating that constant-phase descriptions of parenchymal and respiratory system viscoelasticty may be inappropriate at volumes closer to total lung capacity. Such behavior may reflect alterations in load distribution across various parenchymal stress-bearing elements.
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