Airway Wall Structure Assessed by Endobronchial Ultrasonography and Bronchial Hyperresponsiveness in Patients With Asthma

Background and Objective The purpose of this study was to evaluate the relationship between the wall structure assessed by using endobronchial ultrasonography (EBUS) and bronchial hyperresponsiveness in patients with asthma. Methods Twenty-four patients with stable asthma and 11 individuals without asthma were studied. EBUS was performed with a radial 20-MHz ultrasonic probe inserted into the intermediate bronchus undergoing flexible...