CORRELATION BETWEEN CROSS-SECTIONAL AREA OF AIRWAY AND LUNG FUNCTION IN COPD PATIENTS

Abstract

Background:  Chronic Obstructive Pulmonary Disease (COPD) is a leading cause of morbidity and mortality worldwide, characterized by persistent respiratory symptoms and airflow limitation. The cross-sectional area (CSA) of the airway has been proposed as a potential anatomical marker for assessing the severity of airflow obstruction in COPD patients. However, the relationship between CSA and lung function in COPD patients remains insufficiently explored