ArticleScientific reports2019
Oscillometry in Chronic Obstructive Lung Disease: In vitro and in vivo evaluation of the impulse oscillometry and tremoflo devices.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 27 citations in OpenAlex.
- Respiratory oscillometry in infants: present challenges and future opportunities.Paediatric respiratory reviews · 2026Review
- Measurement agreement between a portable and a conventional impulse oscillometry system: a two-centre method-comparison study.BMJ open respiratory research · 2026Article
- Small Airways Disease in Patients With COPD: A Question-and-Answer Approach for Everyday Clinical Practice.Chest · 2026Review
- Respiratory mechanics: modelling, measurement and clinical applications-a review.Biomedical engineering online · 2026Review
- Comparison of two respiratory oscillometers in patients with a broad range of lung function patterns.Frontiers in allergy · 2026Article
- Oscillometry in Lung Function Assessment: A Comprehensive Review of Current Insights and Challenges.Cureus · 2023Review
- Impulse Oscillometry as a Diagnostic Test for Pulmonary Emphysema in a Clinical Setting.Journal of clinical medicine · 2023Article
- Article
- Expiratory flow limitation in a cohort of highly symptomatic COPD patients.ERJ open research · 2022Article
- Oscillometry of the respiratory system: a translational opportunity not to be missed.American journal of physiology. Lung cellular and molecular physiology · 2021Review
- Lung function monitoring in the era of respiratory pandemics.Clinical physiology and functional imaging · 2020Article
- Comparison of oscillometry devices using active mechanical test loads.ERJ open research · 2019Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Impedance, or oscillometry, measurements of the respiratory system can generate information about the function of the respiratory system not possible with traditional spirometry. There are currently several instruments on the market using different perturbations. We have compared a new respiratory oscillometry instrument, the tremoflo, with Impulse Oscillometry (IOS). Patients with a physician's diagnosis of chronic obstructive lung disease (COPD) and healthy subjects were recruited. They underwent assessment of respiratory function with oscillometry using the IOS and tremoflo devices and the resulting impedance data from the two methods were compared. The two devices were also tested against a reference respiratory phantom with variable resistances. Whereas both devices detected impairments in the patients' lung function commensurate with small airways pathology, the tremoflo appeared to be more sensitive than the IOS. We found systematic differences between the two instruments especially for reactance measurements where the area over the reactance curve (AX) was significantly lower with the IOS compared with the tremoflo (p < 0.001). Moreover, the agreement between the two devices was reduced with increasing severity of the disease as determined with a Bland-Altman test. Testing both instruments against a respiratory phantom unit confirmed that the resistance measured by the tremoflo compares closely with the known resistance of test loads, whereas the IOS' resistance correlated with a test load of 0.19, kPa.s.L
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