An acoustic method to automatically detect pressurized metered dose inhaler actuations

@article{Taylor2014AnAM,
  title={An acoustic method to automatically detect pressurized metered dose inhaler actuations},
  author={Terence E. Taylor and Martin S. Holmes and Imran Sulaiman and Shona D'Arcy and Richard W. Costello and Richard B. Reilly},
  journal={2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society},
  year={2014},
  pages={4611-4614}
}
Chronic respiratory diseases such as asthma and chronic obstructive pulmonary disease (COPD) affect over 400 million people and are incurable. The pressurized metered dose inhaler (pMDI) has been the most popular inhaler device in inhaled therapy in recent times. However the pMDIs require good coordination between inhaling and actuating the inhaler to deliver the aerosolized drug most effectively. Poor coordination can greatly reduce the amount of drug delivered to a patient and therefore… CONTINUE READING
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Key Quantitative Results

  • The developed algorithm generated an overall accuracy of 99.7% demonstrating that this method may have clinical potential to monitor pMDI actuation coordination.
  • An overall accuracy of 99.7% and a specificity of 99.4% for all actuation times is a promising result if this method is to be used in a fully automated system for monitoring patient pMDI technique.

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