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Can I read Reproducibility and Accuracy of Airway Area by Acoustic Reflection on EtoBox?
Reproducibility and Accuracy of Airway Area by Acoustic Reflection by L. J. Brooks; R. G. Castile; G. M. Glass; N. T. Griscom; M. E. Wohl; J. J. Fredberg is a Medicine article available to read on EtoBox.
What is Reproducibility and Accuracy of Airway Area by Acoustic Reflection about?
To determine the accuracy and reproducibility of measurements of airway area by acoustic reflection (AAAR) we made repeated measurements of tracheal areas in human volunteers, glass airway models, and excised canine tracheae. In 10 adult males, the mean ratio of tracheal AAAR to tracheal areas determined roentgenographically was not significantly different from one (1.06 +/- 0.13 SD). Within-run variability was 10 +/- 4% (CV), mean intrasubject day-to-day variability was 9 +/- 4% (CV). A custom-made mouthpiece is necessary for accurate measurements of AAAR. Mean variability related to differences in mouthpiece construction was 7 +/- 6% (CV). The effect of variations in upper airway and glottic sizes on tracheal AAAR measurements was investigated using glass airway models. In model studies, tracheal AAAR measurements were found to be independent of changes in proximal airway size for glottic apertures greater than or equal to 1 cm2 and upper airway areas less than or equal to 8 cm2. Tracheal area was, however, overestimated by 20% in the rigid-walled glass models. The effects of airway wall rigidity were qualitatively investigated by comparing acoustic and roentgenographic measureme
Who reads Reproducibility and Accuracy of Airway Area by Acoustic Reflection?
It is typically read by researchers, students, and practitioners in Medicine.
- Author
- L. J. Brooks; R. G. Castile; G. M. Glass; N. T. Griscom; M. E. Wohl; J. J. Fredberg
- Published
- 1984
- Language
- EN
- Field
- Medicine (Health Sciences)