Airway Area by Acoustic Reflection: The Two-Microphone Method

[+] Author and Article Information
B. Louis, J. Fredberg

Harvard School of Public Health, Department of Environmental Health, Boston, MA 02115

G. Glass, B. Kresen

The Biomechanics Institute, Boston, MA 02215

J Biomech Eng 115(3), 278-285 (Aug 01, 1993) (8 pages) doi:10.1115/1.2895487 History: Received November 14, 1991; Revised August 13, 1992; Online March 17, 2008


This report deals with noninvasive imaging of airway geometry based upon information contained in acoustic reflections measured at the mouth. Here we describe a new theoretical approach that enables development of a new miniaturized apparatus. Unlike the single-transducer systems used currently, this new strategy is based upon a two-transducer system that is a variant of that suggested originally by Shroeder (1967). We have developed, implemented, and tested computational algorithms necessary to reconstruct airway dimensions from acoustic reflection data using this two-transducer strategy.

Copyright © 1993 by The American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In