acoustic rhinometry

acoustic rhinometry

A simple reproducible technique for measuring nasal airflow, which is used to identify fixed lesions—e.g., septal deviations—or alterations in cross-sectional areas induced by allergens or drugs.

Method
A spark generator produces an acoustic click, which travels past a microphone and is directed through the nasal passages via a conduit; the click is reflected back from the various nasal contours and received by the microphone. A computer program analyses the direct and reflected sounds, producing a graph of the cross-sectional area of the nasal passage from the vestibule to the nasopharynx.

acoustic rhinometry

ENT A simple reproducible technique for measuring nasal airflow, which is used to identify fixed lesions–eg, septal deviations, or alterations in cross-sectional area induced by allergens or drugs See Nasal compliance.
References in periodicals archive ?
These patients were preoperatively evaluated with radiographic and endoscopic imaging; preoperative nasal resistance and nasal airway cross-sectional area values were measured and recorded with acoustic rhinometry and rhinomanometry devices.
1) Moreover, these previous investigations primarily have used subjective parameters such as visual analogue scales (VAS) and quality-of-life questionnaires instead of objective measures such as acoustic rhinometry and rhinomanometry.
Evaluation of nasal volume by acoustic rhinometry before and after physical exercise.
Nasal histamine challenge in no allergic and allergic subject evaluated by acoustic rhinometry.
Tonsils, ademoids and mouth breathing Several methods can be used to assess the size of the tonsils and adenoids such as endoscopy, lateral radiographs of the neck, acoustic rhinometry and digital palpation.
To evaluate the effects of ENDS and the placebo ENDS on the nasal valve area, volunteers were submitted to acoustic rhinometry using an Eccovision Acoustic Rhinometer, model AR 1003 (Hood Laboratories, Pembroke, MA, USA), as described by Fonseca et al.
When used on the nose, this technique is termed acoustic rhinometry and does not provide information regarding the pharyngeal cross section.
PARTICIPANTS AND MEASUREMENTS: Twenty-nine volunteers provided symptom reports, ocular electromyograms, measurement of eye tear film break-up time, vital staining of the eye, nasal lavage, acoustic rhinometry, transfer tests, and dynamic spirometry.
Ear, nose, and throat specialists in the Department of Otorhinolaryngology are using the Acoustic Rhinometry System to evaluate patients who have difficulty breathing because of nasal blockage.
Acoustic rhinometry was used to measure the minimum cross-sectional area (MCSA) and the volume of the nasal cavity on both the left and right sides before and after laryngectomy.
acoustic rhinometry evaluation (A1 Acoustic Rhinometer, GM Instruments, Kilwinning, Scotland); and

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