Acoustic Reflectometry for Airway Measurements in Man: Implementation and Validation

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…

Pharyngometer Studies, Related to Obstructive Sleep Apnea

Airway Area by Acoustic Reflection: The Two-Microphone Method

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…

Pharyngometer Studies, Related to Measurement of Airway