ArticleLung2019
I Say IOS You Say AOS: Comparative Bias in Respiratory Impedance Measurements.
Article in Lung, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
What it found
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Who cites it
20 citing papers in PubMed, 41 citations in OpenAlex.
- Measurement agreement between a portable and a conventional impulse oscillometry system: a two-centre method-comparison study.BMJ open respiratory research · 2026Article
- Small airways dysfunction: associated factors, clinical aspects and new perspectives.European respiratory review : an official journal of the European Respiratory Society · 2026Review
- Role of Airwave Oscillometry in Patients with Combined Fibrosis-Emphysema Syndrome (CPFE) with Preserved FEV1/FVC Ratio.Diagnostics (Basel, Switzerland) · 2026Article
- External validation of an IOS-derived model for airflow obstruction and COPD in a community-based cohort.NPJ primary care respiratory medicine · 2026Article
- Small airways disease is common in mild COPD and symptomatic subjects at risk with normal spirometry: baseline data from CAPTO-COPD.ERJ open research · 2026Article
- Respiratory mechanics: modelling, measurement and clinical applications-a review.Biomedical engineering online · 2026Review
- Impulse oscillometry and traditional pulmonary function testing: correlation, advances and clinical implications.BMJ open respiratory research · 2026Review
- Comparison of two respiratory oscillometers in patients with a broad range of lung function patterns.Frontiers in allergy · 2026Article
- Precision Medicine for Asthma: Tailored to its Severity and Endotype/Phenotype.Allergy, asthma & immunology research · 2026Review
- Respiratory oscillometry in monitoring lung transplant allograft function: a systematic scoping review.European respiratory review : an official journal of the European Respiratory Society · 2026Article
- The Role of Fractional Exhaled Nitric Oxide and Oscillometry in Pediatric Asthma.Respiratory care · 2025Review
- Review
- Functional imaging in asthma and COPD: design of the NOVELTY ADPro substudy.ERJ open research · 2023Article
- Clinical characteristics of airway impairment assessed by impulse oscillometry in patients with chronic obstructive pulmonary disease: findings from the ECOPD study in China.BMC pulmonary medicine · 2023Article
- Expiratory flow limitation in a cohort of highly symptomatic COPD patients.ERJ open research · 2022Article
- Clinical significance and applications of oscillometry.European respiratory review : an official journal of the European Respiratory Society · 2022Review
- Within-session variability as quality control for oscillometry in health and disease.ERJ open research · 2021Article
- 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
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe forced oscillation technique (FOT) measures respiratory impedance during normal tidal breathing and requires minimal patient cooperation.
objectiveTo compare IOS and AOS devices in patients with asthma and COPD.
methodsWe compared two different FOT devices, namely impulse oscillometry using a loudspeaker (IOS: Jaeger Masterscreen) and airwave oscillometry using a vibrating mesh (AOS: Thorasys Tremoflo) for pre- and post-bronchodilator measurements in 84 patients with asthma and COPD.
resultsThe overall pattern of measurement bias was for higher resistance with IOS and higher reactance with AOS, this being the case in asthma and COPD separately. There were small but significantly higher values using IOS for resistance at 5 Hz (R5) and 20(19) Hz (R20(19)). In converse, values for reactance at 5 Hz (X5), reactance area (AX) and resonant frequency (Fres) were significantly higher using AOS but to a much larger extent. The difference in AX between devices was more pronounced in COPD than in asthma. Salbutamol reversibility as % change was greater in asthma than COPD patients with AX but not FEV1.
conclusionOur study showed evidence of better agreement for resistance than reactance when comparing IOS and AOS, perhaps inferring that AOS may be more sensitive at measuring reactance in patients with airflow obstruction.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.