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Reproducibility of dynamically represented acoustic lung images from healthy individuals.
  1. Toby M Maher (t.maher{at}ucl.ac.uk)
  1. Royal Brompton and Harefield NHS Trust, United Kingdom
    1. Merav Gat (merav.gat{at}deepbreeze.com)
    1. DeepBreeze Ltd., Israel
      1. Deborah Allen (debs{at}drdla.fslife.co.uk)
      1. Royal Brompton and Harefield NHS Trust, United Kingdom
        1. Anand Devaraj (devaraj.anand{at}gmail.com)
        1. Royal Brompton and Harefield NHS Trust, United Kingdom
          1. Athol U Wells (a.wells{at}rbht.nhs.uk)
          1. Royal Brompton and Harefield NHS Trust, United Kingdom
            1. Duncan M Geddes (d.geddes{at}rbht.nhs.uk)
            1. Royal Brompton and Harefield NHS Trust, United Kingdom

              Abstract

              Acoustic lung imaging offers a unique method for visualizing the lung. This study was designed to demonstrate reproducibility of acoustic lung images recorded from healthy individuals at different time points and to assess intra- and inter-rater agreement in the assessment of dynamically represented acoustic lung images. Recordings from 29 healthy volunteers were made on three separate occasions using Vibration Response Imaging. Reproducibility was measured using quantitative, computerized assessment of vibration energy. Dynamically represented acoustic lung images were scored by six blinded raters. Quantitative measurement of acoustic recordings was highly reproducible with an intra-class correlation score of 0.86 (very good agreement). Intra-class correlations for inter-rater agreement and reproducibility were 0.61 (good agreement) and 0.86 (very good agreement), respectively. There was no significant difference found between the six raters at any time point. Raters ranged from 88% to 95% in their ability to identically evaluate the different features of the same image presented to them blinded on two separate occasions. Acoustic lung imaging is reproducible in healthy individuals. Graphic representation of lung images can be interpreted with a high degree of accuracy by the same, and by different reviewers.

              • Acoustic Imaging
              • Auscultation
              • Diagnostics
              • Lung Imaging
              • Lung sounds

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