The use of endobronchial ultrasound in assessment of bronchial wall remodeling in patients with COPD

Objective The aim of the study is to explore the value of EBUS in the assessment of bronchial wall remodeling in patients with COPD.Methods In 26 patients with COPD and 22 healthy subjects,EBUS was used to measure bronchial wall thickness in the middle segment of the right lung.With a radial 20-MHz probe,EBUS identified the 5-laminar structure of the bronchial wall.Layer 1(L1) and layer 2(L2) were analyzed separately,and layers 3 to...