Fine-Tuning Your Understanding of Oscillometry

Topic Importance Oscillometry is becoming increasingly recognized as an important method to measure pulmonary function. However, the methodology is unfamiliar and sometimes intimidating to clinicians due to the complex physiology and math commonly used to explain the technique. This review aims to demystify oscillometry by explaining it in more intuitive terms related to acoustic waves, using tuning forks as an analogy. In addition, we highlight recent literature describing various clinical applications of oscillometry. Review Findings Oscillometry can be explained by considering how tuning forks generate sound of different frequencies to impact the cochlea. In the case of oscillometry, acoustic waves of different frequencies are chosen to specifically target different depths of the respiratory system. The information derived is interpreted in the context of a simple structural model based on the equation of motion. Recent applications of oscillometry include obstructive and restrictive lung disease, pediatrics, population studies, occupational exposures, and monitoring of mechanical ventilation. Summary Oscillometry is a valuable tool that complements spirometry and other lung function testing and can allow us to better understand the physiological impacts of a wide variety of lung disease.