Respiratory failure & ventilation
Measurement accuracy of a microwave doppler sensor beneath the mattress as a continuous respiratory rate monitor: a method comparison study
Authors' conclusion
The microwave Doppler sensor had a small bias but relatively low precision, similar to other devices. In CEG analyses, the risk of each monitor leading to inadequate clinical decision-making was low.
Study context
- Population
- ICU patients2,307 data points analysed
- Participants
- 18 patients
- Exposure
- Microwave Doppler sensor beneath the mattress, thoracic impedance pneumography and piezoelectric sensor vs capnography (standard reference) for respiratory rate
- Outcome
- Measurement accuracy of respiratory rate vs capnography (bias and 95% limits of agreement)
Methodological detailsBland-Altman analysis for repeated measures, Clarke error grid analysis
- Bland-Altman analysis for repeated measures
- Clarke error grid analysis
Main finding
As reported in the abstract
Bias (95% limits of agreement) vs capnography
Observational data: associations, not effects.
Further findings
- Correct clinical decisions (Clarke error grid analysis) — Microwave Doppler sensor
- 98.1%
Correct clinical decisions (Clarke error grid analysis)
- Similar to the performance of the other devices
Original publication
Measurement accuracy of a microwave doppler sensor beneath the mattress as a continuous respiratory rate monitor: a method comparison study. J Clin Monit Comput. Published 4 October 2023. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →