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 ?
First of all, we did not perform rhinomanometry or acoustic rhinometry to our patients.
Geometrical measurements of the nasal cavity were made by using acoustic rhinometry and computed tomography in human (Gilain et al., 1997), in guinea pig, and rat (Straszerk and Pedersen, 2004).
The patency of the nasal airway was evaluated objectively using acoustic rhinometry and anterior rhinomanometry (RhinoScan/Rhinometrics[R] SRE2000, Denmark and RhinoStream v.2.1, RhinoMetrics[R] SRE2000, Denmark).
Studies evaluating the surgical result after septoplasty using objective methods such as rhinomanometry or acoustic rhinometry predominantly report a positive effect on nasal air flow and patency [1].
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. Allergy.
The use of rhinomanometry, acoustic rhinometry, and other tools to objectively assess nasal airflow may be more helpful in the preoperative assessment [20, 21, 23, 24].
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.

Full browser ?