Journal of Applied Physiology Fuel your research with LabChart
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J Appl Physiol 94: 2166-2172, 2003. First published February 14, 2003; doi:10.1152/japplphysiol.01146.2002
8750-7587/03 $5.00
This Article
Right arrow Full Text Free
Right arrow Full Text (PDF) Free
Right arrow All Versions of this Article:
94/6/2166    most recent
01146.2002v1
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via ISI Web of Science (9)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Cankurtaran, M.
Right arrow Articles by Özlüoglu, L. N.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Cankurtaran, M.
Right arrow Articles by Özlüoglu, L. N.
Vol. 94, Issue 6, 2166-2172, June 2003

Effects of the nasal valve on acoustic rhinometry measurements: a model study

Mehmet Cankurtaran1, Hüseyin Çelik1, Ozcan Cakmak2, and Levent Naci Özlüoglu2

1 Hacettepe University, Faculty of Engineering, Department of Physics, 06532 Beytepe, Ankara; and 2 Baskent University, Faculty of Medicine, Department of Otorhinolaryngology, 06490 Ankara, Turkey

The influence of nasal valve on acoustic rhinometry (AR) measurements was evaluated by using simple nasal cavity models. Each model consisted of a cylindrical pipe with an insert simulating the nasal valve. The AR-determined cross-sectional areas beyond the insert were consistently underestimated, and the corresponding area-distance curves showed pronounced oscillations. The area underestimation was more pronounced in models with inserts of small passage area. The experimental results are discussed in terms of theoretically calculated "sound-power reflection coefficients" for the pipe models. The reason for area underestimation is reflection of most of the incident sound power from the barrier at the front junction between the pipe and the insert. It was also demonstrated that the oscillations are due to low-frequency acoustic resonances in the portion of the pipe beyond the insert. The results suggest that AR does not provide reliable information about the cross-sectional areas of the nasal cavity posterior to a significant constriction, such as pathologies narrowing the nasal valve area. When the passage area of the nasal valve is decreased, the role of AR as a diagnostic tool for the entire nasal cavity becomes limited.

nasal cavity; area underestimation; oscillations; sound-power reflection coefficient


This article has been cited by other articles:


Home page
 Eur J OrthodHome page
C. Doruk, O. Sokucu, A. A. Bicakci, U. Yilmaz, and F. Tas
Comparison of nasal volume changes during rapid maxillary expansion using acoustic rhinometry and computed tomography
Eur J Orthod, June 1, 2007; 29(3): 251 - 255.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
E. Tarhan, M. Coskun, O. Cakmak, H. Celik, and M. Cankurtaran
Acoustic rhinometry in humans: accuracy of nasal passage area estimates, and ability to quantify paranasal sinus volume and ostium size
J Appl Physiol, August 1, 2005; 99(2): 616 - 623.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
S. P. Straszek and O. F. Pedersen
Nasal cavity dimensions in guinea pig and rat measured by acoustic rhinometry and fluid-displacement method
J Appl Physiol, June 1, 2004; 96(6): 2109 - 2114.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Visit Other APS Journals Online
Copyright © 2003 by the American Physiological Society.