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支气管哮喘是一种气道炎症和平滑肌功能障碍性疾病,传统观点认为哮喘主要表现为病理生理学异常,通常无明显的肺部结构改变,这一点与慢性阻塞性肺疾病(chronic obstructive pulmonary disease,COPD)、支气管扩张症等阻塞性肺疾病有所不同。但这一观点多基于普通X线胸片或胸部普通CT扫描的研究,这些手段难以发现支气管-肺细微的结构改变。高分辨率CT(high resolution computed tomorgra-
Bronchial asthma is a kind of airway inflammation and smooth muscle dysfunction disease, the traditional view that asthma is mainly manifested as pathophysiological abnormalities, usually without significant structural changes in the lungs, which is associated with chronic obstructive pulmonary disease (COPD ), Bronchiectasis and other obstructive pulmonary disease are different. However, this view is mostly based on the research of ordinary X-ray or chest CT scan, which is hard to find the subtle bronchial-pulmonary structural changes. High resolution computed tomorgra-