Reproducibility of Acoustic Lung Images in Healthy Individuals
Author Information
Author(s): Maher T M, Gat M, Allen D, Devaraj A, Wells A U, Geddes D M
Primary Institution: The Royal Brompton Hospital
Hypothesis
This study aimed to demonstrate the reproducibility of acoustic lung images recorded from healthy individuals at different time points.
Conclusion
Acoustic lung imaging is reproducible in healthy individuals, allowing for accurate interpretation by both the same and different reviewers.
Supporting Evidence
- Quantitative measurement of acoustic recordings was highly reproducible with an intraclass correlation score of 0.86.
- Intraclass correlations for inter-rater agreement and reproducibility were 0.61 and 0.86, respectively.
- There was no significant difference found between the six raters at any time point.
Takeaway
This study shows that pictures of lung sounds taken at different times from healthy people look the same, which means doctors can trust these images.
Methodology
Recordings from 29 healthy volunteers were made on three separate occasions using vibration response imaging, and reproducibility was measured using quantitative assessments.
Potential Biases
The raters had varying levels of experience with VRI images, which could introduce bias in the evaluations.
Limitations
The study had a predominantly male sample and a relatively low median age, which may not represent the general population.
Participant Demographics
{"age":"32 (6)","sex":"24% females","non_smokers":"83%","previous_smokers":"17%"}
Statistical Information
P-Value
p<0.05
Confidence Interval
95% confidence interval 2.8% to 4.5%
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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