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Identifying pediatric lung disease: A comparison of forced oscillation technique outcomes
Pediatric Pulmonology, 2019Increasing evidence suggests the forced oscillation technique (FOT) has the capacity to provide non‐invasive monitoring and diagnosis of respiratory disease in young children. However, which FOT outcomes provide the most pertinent clinical information is
D. Evans +4 more
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Forced oscillation technique and impulse oscillometry [PDF]
, 2005 Conventional methods of lung function testing provide measurements obtained during specific respiratory actions of the subject. In contrast, the forced oscillation technique (FOT) determines breathing mechanics by superimposing small external pressure ...
H.J. Smith, P. Reinhold, M.D. Goldman
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Two-point calibration procedure of the forced oscillation technique
Medical and Biological Engineering and Computing, 1997The forced oscillation technique is usually calibrated by loading the measuring device with a known impedance. A correction function is calculated, relating the measured and reference impedances at each frequency. However, this one point calibration procedure does not account for transducer asymmetry.
K N, Desager +2 more
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Is Forced Oscillation Technique Useful in the Diagnosis of Occupational Asthma?
Journal of Occupational and Environmental Medicine, 2005The aim of the study was to determine whether the forced oscillation technique (FOT), which does not require active cooperation, may be useful to assess bronchial responsiveness in patients with suspected occupational asthma (OA).Changes in resistances evaluated by FOT, and DeltaFEV1 measured during methacholine challenge test were compared in 77 ...
Alexis, Descatha +6 more
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A Fan-Based, Low-Frequent, Forced Oscillation Technique Apparatus
IEEE Transactions on Instrumentation and Measurement, 2014The forced oscillation technique (FOT) is a noninvasive method to characterize the respiratory impedance (Z). Z is defined as the frequency-dependent ratio between pressure and flow. The FOT determines Z by superimposing small amplitude (in the order of 0.1 kPa) pressure oscillations on the normal breathing.
Hannes Maes +3 more
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Optoelectronic frequency stabilization techniques in forced oscillators
2021Forced frequency stabilization techniques of self-injection locking (SIL) and self-phase locked loop (SPLL) have been demonstrated to be effective for phase noise reduction. In SIL scheme, a portion of the oscillator output is directly injected back to the oscillator after passing through a long delay while in SPLL, the delayed signal is used to ...
Li Zhang, Afshin S. Daryoush
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Measurement of total respiratory impedance in dogs by the forced oscillation technique
Veterinary Research Communications, 1993The resistance (Rrs) and reactance (Xrs) of the total respiratory system were determined at various frequencies in 14 healthy conscious beagle dogs. A pseudorandom noise pressure wave was produced at the nostrils of the animals by means of a loudspeaker adapted to the nose by a tightly fitting mask.
Clercx, Cécile +3 more
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Measurement of total respiratory impedance in calves by the forced oscillation technique
Journal of Applied Physiology, 1988We have determined the resistance (Rrs) and the reactance (Xrs) of the total respiratory system in unsedated spontaneously breathing calves at various frequencies. A pseudorandom noise pressure wave was produced at the nostrils of the animals by means of a loudspeaker adapted to the nose by a tightly fitting mask. A Fourier analysis of the pressure in
Gustin, Pascal +5 more
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Biomedizinische Technik. Biomedical engineering, 2018
There is a lack of noninvasive pulmonary function tests which can assess regional information of the lungs. Electrical impedance tomography (EIT) is a radiation-free, non-invasive real-time imaging that provides regional information of ventilation volume
C. Ngo +6 more
semanticscholar +1 more source
There is a lack of noninvasive pulmonary function tests which can assess regional information of the lungs. Electrical impedance tomography (EIT) is a radiation-free, non-invasive real-time imaging that provides regional information of ventilation volume
C. Ngo +6 more
semanticscholar +1 more source