Measurement of temperature and relative humidity in exhaled breath

@article{Mansour2020MeasurementOT,
  title={Measurement of temperature and relative humidity in exhaled breath},
  author={Elias Mansour and Rotem Vishinkin and St{\'e}phane Rihet and Walaa Saliba and Falk Fish and Patrice D. Sarfati and Hossam Haick},
  journal={Sensors and Actuators B-chemical},
  year={2020},
  volume={304},
  pages={127371}
}
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48 Citations
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48 Citations

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References

SHOWING 1-10 OF 38 REFERENCES
Validation of the Exhaled Breath Temperature Measure: Reference Values in Healthy Subjects
Measurement of exhaled breath temperature in science and clinical practice
TLDR
Evaluation of the exhaled breath temperature (EBT) has been suggested as a new method to detect and monitor pathological processes in the respiratory system and has emerged as an attractive noninvasive new approach in respiratory and, possibly, other diseases.
Development of a Breath Analyzer for O2 and CO2 Measurement
Breath analysis can be used to screen disease and detect physical conditions. Many research studies have investigated various sensors or techniques that were used to detect gas concentrations and…
Exhaled breath temperature in patients with stable and exacerbated COPD.
TLDR
The peak exhaled breath temperature, recorded during multiple tidal breaths, increases with an acute exacerbation of COPD, and may be related to accelerated airway inflammation.
Validation of a novel respiratory rate monitor based on exhaled humidity.
TLDR
The respiR8(®) monitor gives an accurate measurement of RR and is useful in postoperative care and compared with two other methods of measuring RR: capnometry and counting of thoracic breathing movements.
The relationship of normal body temperature, end-expired breath temperature, and BAC/BrAC ratio in 98 physically fit human test subjects.
TLDR
Neither normal body temperature nor end-expired breath temperature was strongly associated with BAC/BrAC ratio, whereas the correlations between body temperature and end- Expiration breath temperature, body temperature, and Bac/Brac ratio, and breath temperature and BAC / BrAC ratio were much lower.
Faster rise of exhaled breath temperature in asthma: a novel marker of airway inflammation?
TLDR
Asthmatic subjects have elevated Deltae degrees T, which may represent a novel, noninvasive means of measuring airway blood flow and inflammation in asthma.
Importance of Temperature and Humidity in the Measurement of Pulmonary Oxygen Uptake per Breath During Anesthesia
  • P. Breen
  • Materials Science
    Annals of Biomedical Engineering
  • 2004
TLDR
Because inspired RH and T can vary significantly during anesthesia, a fast-response humidity and T sensor, combined with flow and FIO2 measurements, are needed to allow accurate determination of VO2,br, which should become an important measure of metabolism and patient wellness during anesthesia.
Slower rise of exhaled breath temperature in chronic obstructive pulmonary disease
TLDR
Exhaled temperature increase is reduced in chronic obstructive pulmonary disease patients and is increased by the inhalation of vasodilators and therefore may be related to changes of bronchial blood flow and tissue remodelling.
Online sample conditioning for portable breath analyzers.
TLDR
A miniaturized mouthpiece was developed for personal breath analyzers to condition the humidity in real breath samples without changing the analyte concentrations and introducing substantial backpressure, which is achieved with optimized packing of desiccant particles.
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