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Nasal Cavity Geometry Measured by Acoustic Rhinometry and Computed Tomography

Nasal Cavity Geometry Measured by Acoustic Rhinometry and Computed Tomography Abstract Objective: To determine the significance of crosssectional areas obtained by acoustic rhinometry. Design: Comparison of data obtained by acoustic rhinometry and computed tomography (CT). Setting: Outpatient clinic. Patients: Nine adults with nasal obstruction due to turbinate hypertrophy. Main Outcome Measures: Acoustic rhinometry and CT were performed after nasal decongestion. The acoustic area-distance curve was analyzed based on 3 notches (Al, A2, and A3) corresponding to 3 local minimal areas. Computed tomographic measurements were made in the coronal plane at 0.5-cm intervals, and the narrowest sections in the anterior (S1), middle (S2), and posterior (S3) parts of the nasal cavity were selected. Mean specific section areas and volumes were computed by integration of the acoustic area-distance curves using the same procedure for the 2 methods. Results: Significant correlations were found between acoustic and CT areas in the anterior nasal cavity (Al vs SI, P<.001; A2 vs S2, P<.005). Acoustic and CT anterior volumes from Al to A2 and from SI to S2 were significantly correlated with each other (P<.005). No correlation was found between acoustic and CT areas measured at the posterior part of the nose (A3 vs S3). A weak correlation was evidenced between acoustic and CT posterior volumes from A2 to A3 and from S2 to S3 (P<.05). Conclusions: Acoustic rhinometry may be particularly well suited to the evaluation of anterior nasal geometry during clinical studies. At the posterior part of the nose, acoustic measurements may be of limited clinical relevance.Arch Otolaryngol Head Neck Surg. 1997;123:401-405 References 1. Hilberg O, Jackson AC, Swift DL, Pedersen OF. Acoustic rhinometry: evaluation of nasal cavity geometry by acoustic reflection . J Appl Physiol . 1989;66: 295-303. 2. Fisher EW, Scadding GK, Lund VJ. The role of acoustic rhinometry in studying the nasal cycle . Rhinology . 1993;31:57-61. 3. Fouke JM, Jackson A. Acoustic rhinometry: effects of decongestants and posture on nasal patency . J Lab Clin Med . 1992;19:371-376. 4. Hilberg O, Grymer LF, Pedersen O. Nasal histamine challenge in nonallergic subjects evaluated by acoustic rhinometry . Allergy . 1995;50:166-173.Crossref 5. Grymer LF, Hilberg O, Elbrond O, Pedersen OF. Acoustic rhinometry: evaluation of the nasal cavity with septal deviations, before and after septoplasty . Laryngoscope . 1989;99:1180-1187. 6. Marais J, Murray JAM, Marshall I, Douglas N, Martin S. Minimal crosssectional areas, nasal peak flow and patients' satisfaction in septoplasty and inferior turbinectomy . Rhinology . 1994;32:145-147. 7. Lenders H, Pirsig W. Diagnostic value of acoustic rhinometry: patients with allergic and vasomotor rhinitis compared with normal controls . Rhinology . 1990; 8:5-16. 8. Kunkel MH, Hochban W. Acoustic rhinometry: rationale and perspectives . J Craniomaxillofac Surg . 1994;22:244-249.Crossref 9. Cole P. Rhinomanometry: practice and trends . Laryngoscope . 1989;99:311-315.Crossref 10. Tomkinson A, Eccles R. Errors in cross-sectional area estimation by acoustic rhinometry produced by breathing during measurement . Rhinology . 1995;33: 138-140. 11. Roithmann R, Cole P, Chapnick J, Shpirer I, Hoffstein V, Zamel N. Acoustic rhinometry in the evaluation of nasal obstruction . Laryngoscope . 1995;105: 275-281.Crossref 12. Elbrond O, Felding JU, Gustavsen KM. Acoustic rhinometry used as a method to monitor the effect of intramuscular injection of steroid in the treatment of nasal polyps . J Laryngol Otol . 1991;105:178-180.Crossref 13. Min YG, Jang YJ. Measurements of cross-sectional area of the nasal cavity by acoustic rhinometry and CT-scanning . Laryngoscope . 1995;105:757-759.Crossref 14. Louis B, Glass GM, Fredberg JJ. Airway area by acoustic method: the twomicrophone method . J Biomech Eng . 1993;115:278-285.Crossref 15. Fisher EW, Morris DP, Biemans MA, Palmer CR, Lund VJ. Practical aspects of acoustic rhinometry: problems and solutions . Rhinology . 1995;33:219-223. 16. Hilberg O, Pedersen O. Acoustic rhinometry: influence of paranasal sinuses . J Appl Physiol . 1996;80:1589-1594. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Otolaryngology - Head & Neck Surgery American Medical Association

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References (20)

Publisher
American Medical Association
Copyright
Copyright © 1997 American Medical Association. All Rights Reserved.
ISSN
0886-4470
eISSN
1538-361X
DOI
10.1001/archotol.1997.01900040037006
Publisher site
See Article on Publisher Site

Abstract

Abstract Objective: To determine the significance of crosssectional areas obtained by acoustic rhinometry. Design: Comparison of data obtained by acoustic rhinometry and computed tomography (CT). Setting: Outpatient clinic. Patients: Nine adults with nasal obstruction due to turbinate hypertrophy. Main Outcome Measures: Acoustic rhinometry and CT were performed after nasal decongestion. The acoustic area-distance curve was analyzed based on 3 notches (Al, A2, and A3) corresponding to 3 local minimal areas. Computed tomographic measurements were made in the coronal plane at 0.5-cm intervals, and the narrowest sections in the anterior (S1), middle (S2), and posterior (S3) parts of the nasal cavity were selected. Mean specific section areas and volumes were computed by integration of the acoustic area-distance curves using the same procedure for the 2 methods. Results: Significant correlations were found between acoustic and CT areas in the anterior nasal cavity (Al vs SI, P<.001; A2 vs S2, P<.005). Acoustic and CT anterior volumes from Al to A2 and from SI to S2 were significantly correlated with each other (P<.005). No correlation was found between acoustic and CT areas measured at the posterior part of the nose (A3 vs S3). A weak correlation was evidenced between acoustic and CT posterior volumes from A2 to A3 and from S2 to S3 (P<.05). Conclusions: Acoustic rhinometry may be particularly well suited to the evaluation of anterior nasal geometry during clinical studies. At the posterior part of the nose, acoustic measurements may be of limited clinical relevance.Arch Otolaryngol Head Neck Surg. 1997;123:401-405 References 1. Hilberg O, Jackson AC, Swift DL, Pedersen OF. Acoustic rhinometry: evaluation of nasal cavity geometry by acoustic reflection . J Appl Physiol . 1989;66: 295-303. 2. Fisher EW, Scadding GK, Lund VJ. The role of acoustic rhinometry in studying the nasal cycle . Rhinology . 1993;31:57-61. 3. Fouke JM, Jackson A. Acoustic rhinometry: effects of decongestants and posture on nasal patency . J Lab Clin Med . 1992;19:371-376. 4. Hilberg O, Grymer LF, Pedersen O. Nasal histamine challenge in nonallergic subjects evaluated by acoustic rhinometry . Allergy . 1995;50:166-173.Crossref 5. Grymer LF, Hilberg O, Elbrond O, Pedersen OF. Acoustic rhinometry: evaluation of the nasal cavity with septal deviations, before and after septoplasty . Laryngoscope . 1989;99:1180-1187. 6. Marais J, Murray JAM, Marshall I, Douglas N, Martin S. Minimal crosssectional areas, nasal peak flow and patients' satisfaction in septoplasty and inferior turbinectomy . Rhinology . 1994;32:145-147. 7. Lenders H, Pirsig W. Diagnostic value of acoustic rhinometry: patients with allergic and vasomotor rhinitis compared with normal controls . Rhinology . 1990; 8:5-16. 8. Kunkel MH, Hochban W. Acoustic rhinometry: rationale and perspectives . J Craniomaxillofac Surg . 1994;22:244-249.Crossref 9. Cole P. Rhinomanometry: practice and trends . Laryngoscope . 1989;99:311-315.Crossref 10. Tomkinson A, Eccles R. Errors in cross-sectional area estimation by acoustic rhinometry produced by breathing during measurement . Rhinology . 1995;33: 138-140. 11. Roithmann R, Cole P, Chapnick J, Shpirer I, Hoffstein V, Zamel N. Acoustic rhinometry in the evaluation of nasal obstruction . Laryngoscope . 1995;105: 275-281.Crossref 12. Elbrond O, Felding JU, Gustavsen KM. Acoustic rhinometry used as a method to monitor the effect of intramuscular injection of steroid in the treatment of nasal polyps . J Laryngol Otol . 1991;105:178-180.Crossref 13. Min YG, Jang YJ. Measurements of cross-sectional area of the nasal cavity by acoustic rhinometry and CT-scanning . Laryngoscope . 1995;105:757-759.Crossref 14. Louis B, Glass GM, Fredberg JJ. Airway area by acoustic method: the twomicrophone method . J Biomech Eng . 1993;115:278-285.Crossref 15. Fisher EW, Morris DP, Biemans MA, Palmer CR, Lund VJ. Practical aspects of acoustic rhinometry: problems and solutions . Rhinology . 1995;33:219-223. 16. Hilberg O, Pedersen O. Acoustic rhinometry: influence of paranasal sinuses . J Appl Physiol . 1996;80:1589-1594.

Journal

Archives of Otolaryngology - Head & Neck SurgeryAmerican Medical Association

Published: Apr 1, 1997

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