Browsing by Subject "Oscillometry"
Now showing items 1-5 of 5
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Advances in Respiratory Impedance Predictions using Pulmonary Functional Imaging Models of Asthma
(2018-09-04)Previous asthma pulmonary functional modelling used the locations of ventilation defects observed in inhaled gas imaging to implement binary airway closures and required additional random narrowing in ventilated regions ... -
Airway Impedance, Heterogeneity and Variability in Adult Asthma
(2015-04-14)While bronchodilator (BD) reversibility is a feature of asthma, the relative contributions of small and large airways to BD is unclear, and the effect of small-airway heterogeneity on respiratory system impedance, Zrs has ... -
Design of piezoelectric oscillometry, accuracy in tracking time-varying impedance and implications on the frequency dependence of resistance
(2019-01-15)Oscillometry (OS) is commonly performed by actuators that are heavy and bulky. In this thesis I designed and simulated a new single frequency OS system. This novel design used a piezoelectric bimorph actuator on resonance. ... -
Improving Quality Control in Oscillometry: Repeatability, Efficiency, Feasibility and Accuracy
(2024-01-07)RATIONALE: The current oscillometry acceptance criteria for measurement of respiratory impedance (Zrs) requires a minimum of three repeated measurements with a coefficient of variation (CV) of ≤ 10% in adults or ≤ 15% in ... -
PIEZOELECTRIC MULTILAYER BENDING ACTUATED OSCILLOMETRY PROTOTYPE
(2015)Oscillometry (OS), also known as the forced oscillation technique (FOT) is used to measure lung mechanics and can be used to assess airflow obstruction in diseases such as asthma and chronic obstructive pulmonary disease. ...