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Acoustic rhinometry in rhinological practice: discussion paper
E W Fisher1, V J Lund, G K Scadding
1Royal National Throat, Nose and Ear Hospital, London, UK.
Journal of the Royal Society of Medicine
|July 1, 1994
Summary
Acoustic rhinometry offers a rapid, non-invasive method to assess nasal obstruction by analyzing sound pulse reflections. This technique is particularly promising for evaluating childhood nasal obstruction due to its ease of use in young patients.
Area of Science:
- Otolaryngology
- Medical Imaging
Background:
- Nasal obstruction assessment traditionally relies on subjective measures or complex equipment.
- Objective, non-invasive methods are needed for accurate diagnosis and monitoring of nasal conditions.
Purpose of the Study:
- To evaluate the utility of acoustic rhinometry (AR) as a non-invasive technique for assessing nasal obstruction.
- To explore AR's application in normal nasal physiology and various pathological conditions.
- To determine AR's potential in monitoring medical and surgical therapies for nasal issues.
Main Methods:
- Acoustic rhinometry involves introducing a sound pulse into the nostrils and analyzing reflected sound waves.
- It generates a graph of nasal cross-sectional area versus distance from the nostril.
- Data derived include nasal cavity area and volume estimates, with highest reliability in the anterior nasal cavity.
Main Results:
- AR is rapid, reproducible, non-invasive, and requires minimal subject cooperation.
- It does not require airflow, distinguishing it from rhinomanometry.
- Reliability is highest in the anterior nasal cavity, crucial for nasal valve assessment.
Conclusions:
- Acoustic rhinometry is valuable for quantifying nasal obstruction and monitoring treatment efficacy.
- Its role in diagnosis is complementary to nasal endoscopy.
- AR shows significant promise for evaluating childhood nasal obstruction due to its tolerability in young children.