What question did this study set out to answer?

This study aims to assess the accuracy of respiratory phase recordings using a nasal thermistor technique.

Heat transfer evaluation of the nasal thermistor technique

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Randomized trial evaluates respiratory timing using a nasal thermistor, suggesting improved measuring methods are needed.

This study aims to assess the accuracy of respiratory phase recordings using a nasal thermistor technique.
Analyzed thermistor design parameters using lumped heat capacity method;
Extended analysis with finite element method to calculate temperature fields in thermistor;
Evaluated impact of air temperature and velocity on thermistor response.
Confirmed that the thermistor's high time-constant creates a significant phase difference;
Found that the timing of respiration was not accurately captured using the analyzed thermistor;
Suggested that changes in measuring methods or signal processing are essential for improving response accuracy.

Storck et al. (1996) studied this question.

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