Chronic Obstructive Pulmonary Disease Clinical Trial
Official title:
Research of Endobronchial Optical Coherence Tomography in Pre-stage of Chronic Obstructive Pulmonary Disease
The pre-stage of Chronic Obstructive Pulmonary Disease (Pre-COPD) is challenging to diagnose. However, identifying Pre-COPD is a crucial step in the prevention and management of COPD. Endobronchial optical coherence tomography showed the value of diagnosis in Pre-COPD and COPD in previous researchs.
We recruited COPD patients (stage I-II, n=15; stage III-IV, n= 15), Pre-COPD (n= 20) and healthy never-smokers (healthy human, n=21). Age,gender,BMI, smoking history, spirometry, chest computed tomography (CT), bronchoscopy and EB-OCT were performed. Inner luminal area (Ai) and airway wall area (Aw) of bronchi which inner perimeter was 10mm, 20mm and 30mm were measured using EB-OCT respectively. By analyzing and studying the above situation, we aim to discover the application value of OCT in Pre-COPD ;
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