Clinical Otolaryngology, 1994 Authors: G. K. Scadding, Y. C. Darby, and C. E. Austin Conclusion: “Acoustic rhinometry has a definite advantage [to rhinomanometry] because it is not dependent on airflow in the nose, and it is therefore suitable for severely congested individuals. It also appears to be more sensitive to changes in obstruction, probably because…
American Journal of Rhinology, 1994American Journal of Rhinology, 1994 Authors: J. E. Buenting, R. M. Dalston, and A. F. Drake Conclusion: “The modified AR device (a narrow diameter wave tube) can be used to generate acceptably accurate area-distance functions of the infant nasal cavity.” “The modified AR device is best suited to analysis of nasal…
American Journal of Respiratory Critical Care Medicine, 1994 Authors: C. Van Surell, B. Louis, F. Lofaso, L. Beydion, L. Brochard, A. Harf, J. Fredberg, and D. Isabey Conclusion: “This study has demonstrated the feasibility of the acoustic reflection method in the intensive care unit and that the decrease in hydraulic diameter and the change in…
Journal of Applied Physiology, 1994 Authors: B. Louis, G. M. Glass, and J. J. Fredberg Conclusion: “In summary, we have shown that the two-microphone method permits accurate measurement of human pulmonary airway area of breathing subjects. We established a high-pass filter signal- processing method that lessened artifacts associated with nonrigidity. This is important because it…
Clinical Physics and Physiological Measurements, 1993 Authors: I. Marshall, N.J. Maran, S. Martin, M.A. Jan, J.E. Rimmington, J.J.K. Best, G.B. Drummond, and J.J. Douglas Conclusion: “The real-time display of airway areas is able to show the complex interdependencies of movement of the mouth, tongue, soft palate, naso-pharynx and glottis. These aspects have not been accessible…
Journal of Biomechanical Engineering, 1993 Authors: B. Louis, G. Glass, B. Kresen, J. Fredberg Conclusion: “In summary, the principal findings of this report are as follows. 1) Areas inferred using the two-microphone method compared favorably with the standard single microphone approach and with water displacement methods. 2) We established a correction procedure that secured both…
Rhinology, 1993 Authors: E. W. Fisher, G. K. Scadding, V. J. Lund Conclusion: “Magnetic resonance Imaging is one way of expanding the sphere of study to the whole nasal cavity and paranasal sinuses, although it is prohibitively expensive for large scale studies. Acoustic rhinometry does not provide as extensive geometric information as MRI, but allow…
Ear, Nose, and Throat Journal, 1993 Authors: V. W. S. Lai, MD and J. P. Corey, MD, FACS Conclusion: “Acoustic Rhinometry may become a helpful diagnostic tool as use of the technique grows. It may help the clinician in making an anatomical diagnosis to pinpoint the location and etiologic factors causing nasal obstruction. It also…
The Journal of Laryngology and Otology, 1993 Authors: L.F. Grymer, P. Illum, O. Hilberg Conclusion: “Septoplasty increased the areas of the narrow side significantly in both groups. The increase in area in group B was surprisingly little. This is probably an expression of the limitation of septoplasty in the treatment of slight septal deviations. The…
Rhinology, 1992 Authors: H. Lenders and W. Pirsig Conclusion: “Acoustic rhinometry is a quick, non-invasive and objective method to measure the cross-sectional areas and volumes of the nasal cavities.” “Clinically recognizable irregular movements of the soft palate in rhonchopaths can be visualized by AR in 94% of all patients.” “This study shows that AR helps…
Rhinology, 1991 Authors: L. F. Grymer, O. Hilberg, O. F. Pedersen, and T. R. Rasmussen Conclusion: “The cross-sectional area of the nasal cavity increases in antero- posterior direction.” “The minimal cross-sectional area (MCA) is located in the anterior part of the nose, in some individuals probably at the head of the inferior turbinate, and after…
Sleep, 1991
Authors: J. W. Shepard, Jr., W. B. Gefter, C. Guilleminault, E. A. Hoffman, V. Hofffstein, D. W. Hudgel, P. M. Suratt, and D. P. White
Conclusion: “The acoustic reflection technique has
Clinical Physics and Physiological Measurement, 1991
Authors: I. Marshall, M. Rogers, and G. Drummond
Conclusion: “Acoustic pulse reflectometry is a relatively recent technique which allows the non-invasive measurement of human airways. The technique consists of guiding an acoustic impulse through the subject’s mouth and into the airway. Suitable analysis of the
resulting reflection (the
European Respiratory Journal, 1991 Authors: V. Hoffstein, J. J. Fredberg Conclusion: “It is clear from the already accumulated evidence that the acoustic technique may become a valuable tool for studying the clinical and physiological properties of the upper airway. So far this technique is the only one which allows non-invasive, accurate, reproducible and inexpensive measurements…
Rhinology, 1990
Authors: H. Lenders and W. Pirsig
Conclusion: “