Physiological change in nasal patency in response to changes in posture, temperature, and humidity measured by acoustic rhinometry.

American journal of rhinology 2006;20(5):456-62. Authors, Lal Devyani; Gorges Melissa L; Ungkhara Girapong; Reidy Patrick M; Corey Jacquelynne P Abstract: BACKGROUND: Acoustic rhinometry has been used to assess nasal patency and to calculate nasal cavity volume. This study used acoustic rhinometry to assess changes in nasal patency after alterations in posture, unilateral mechanical obstruction, temperature,…

Related to Nasal Obstruction, RHINOMETER Studies

Volumetric Measurements of Vocal Tracts for Male speakers from Different Races

Clinical Linguistics and Phonetics, 2006 Authors: S. A. Xue, G. J. Hao, and R. Mayo Conclusion: “Research examining physiologic and acoustic characteristics of culturally diverse populations is sorely needed, but rarely reported. The major aim of this study was to quantify vocal tract dimensional parameters (oral length, oral volume, pharyngeal length, pharyngeal volume, total vocal…

PHARYNGOMETER Studies, Related to Vocal Tract

Normative Standards for Vocal Tract Dimensions by Race as Measured by Acoustic Pharyngometry

Journal of Voice, 2006 Authors: S. A. Xue and J. G. Hao Conclusion: “Acoustic pharyngometry evaluates the geometry of the vocal tract with acoustic reflections and provides information about vocal tract cross-sectional area and volume from lip to the glottis. Variations in vocal tract diameters are needed for speech scientists to validate various acoustic models…

PHARYNGOMETER Studies, Related to Vocal Tract

Comparison between Acoustic rhinometry, Nasal Inspiratory Peak Flow, and Table of Scores in Patients with Rhinitis

International Archives of Otorhinolaryngology, 2005 Authors: Orcesi da Costa, G. G., Ctenas, B. B., Takahashi, D. Y., Mion, O. Mello, Jr., J. F., Butugan, O. Conclusion: 1). Acoustic Rhinometry (ARNM) presented statistically expressive correlation with signs and symptoms before and after vasoconstrictor use when analyzed five centimeters nostrils inward. 2). There was no statistically expressive…

Related to Allergic and/or Vasomotor Rhinitis, RHINOMETER Studies

Oropharyngeal Dimensions in Adults: Effect of Ethnicity, Gender, and Sleep Apnea

Journal of Clinical Sleep Medicine, 2005 Authors: K. Monahan, H. L. Kirchner, S. Redline Conclusion: “We concluded that (1) acoustic pharyngometry identifies differences in upper airway characteristics based on gender, ethnicity, and SDB status and (2) novel parameters can assist in quantifying these pharyngeal phenotypes. The novel parameters can potentially facilitate quantitative, as an adjunct…

PHARYNGOMETER Studies, Related to Measurement of Airway

Smaller Nasal Volumes as Stigmata of Aberrant Neurodevelopment in Schizophrenia

American Journal of Psychiatry, 2004 Authors: Moberg, P.J, Roalf, D.R, Gur, R.E., Turetsky, B.I. Method: ” A measurement of nasal volume was acquired by acoustic rhinometry for 40 male schizophrenia patients and 24 healthy male comparison subjects.” Results: “The patients had smaller posterior nasal volume than the comparison subjects but did not differ in anterior…

Related to Nasal Cavity Geometry and Measurement, RHINOMETER Studies

Solid Modeling of Human Vocal Tract using Magnetic Resonance Imaging and Acoustic Pharyngometer

Proceedings of the 26th Annual International conference of the IEEE EMBS , 2004 Authors: H. Z. Tameem and B. V. Mehta Conclusion: “The geometric information such as cross-sectional area and the volume of the vocal tract can be obtained using the [Eccovision] Acoustic Pharyngometer. The accuracy of this device is verified during this research and…

PHARYNGOMETER Studies, Related to Vocal Tract

Increased Upper Airway Collapsibility in Children with Obstructive Sleep Apnea during Wakefulness

American Journal of Respiratory and Critical care Medicine, 2004 Authors: D. Gozal and M. M. Burnside Conclusion: “This study shows that acoustic pharyngometric measurements of the upper airway before and after topical anesthesia provide a reproducible measure of Upper Airway Collapsibility in awake children. Furthermore, a cutoff value derived from the differences in cross-section area…

PHARYNGOMETER Studies, Related to Obstructive Sleep Apnea

Predictive Value of Kushida Index and Acoustic Pharyngometry for the Evaluation of Upper Airway in Subjects With or Without Obstructive Sleep Apnea

Journal of Korean Medical Science, 2004 Authors: D. G. Jung, H. Y. Cho, R. R. Grunstein, B. Yee Conclusion: “The morphometric measurement of oral cavity and acoustic pharyngometry enables an examiner to predict the presence or absence of OSA rapidly and accurately during an initial visit. Through this study we found the sensitivity and specificity…

PHARYNGOMETER Studies, Related to Obstructive Sleep Apnea

Assessing Orthotic Normalization of Pharyngeal Dynamics

Journal of Craniomandibular Practice, 2004 Author: J. S. Viviano, B.Sc., D.D.S. Conclusion: “Both non-invasive and accurate, acoustic reflectometry (AR) provides and objective measurement of the oral cavity and pharyngeal airway caudal to the velopharynx down to the glottis. Other advantages include ease of use and repeatability, inexpensive to perform, and high patient acceptance.” “Although video…

PHARYNGOMETER Studies, Related to Measurement of Airway