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Characterization of nasal airflow
R G Newcombe1, G O'Neill, N S Tolley
1Department of Medical Computing and Statistics, University of Wales College of Medicine, Cardiff, UK.
Clinical Otolaryngology and Allied Sciences
|January 7, 1998
Summary
This study found the O'Neill and Tolley model offers a more accurate characterization of nasal airflow compared to the Broms model. This nasal airflow model can also quantify alar valve stiffness.
Area of Science:
- Otorhinolaryngology
- Biomedical Engineering
- Respiratory Physiology
Background:
- Accurate characterization of nasal airflow is crucial for diagnosing and managing nasal obstruction.
- Existing models for nasal airflow analysis have varying degrees of accuracy and applicability.
Purpose of the Study:
- To compare the 'goodness of fit' of two models (Broms and O'Neill and Tolley) for characterizing nasal airflow.
- To evaluate the potential of these models in quantifying alar valve stiffness.
Main Methods:
- Active anterior rhinomanometry was used to measure nasal airflow and trans-nasal pressure difference in 24 subjects.
- Statistical analysis was performed to assess the fit of the two airflow models.
Main Results:
- The O'Neill and Tolley model demonstrated a more accurate characterization of nasal airflow.
- The O'Neill and Tolley model showed potential for quantifying alar valve stiffness.
Conclusions:
- The O'Neill and Tolley model is recommended for a more accurate assessment of nasal airflow.
- A portable computerized system utilizing this model has been developed for clinical application.