It’s time for a new modality
Spirometry. X-ray. CT scan. For decades, these have been the best practice modalities for detecting lung disease.
While each provides important insights, they often detect anomalies too late for patients to receive effective treatment.
CT & X-ray can only image the structure of the lung. From these images, specialists attempt to infer lung function, or in the case spirometry, give an averaged, global measurement of airflow.