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本研究的目的是明确慢性阻塞性肺病(COPD)病人气道软化的发病率及与其形态学改变之间的关系。对一组连续COPD病人的吸气相和动态呼气相多层螺旋CT(MD-CT)影像进行了回顾性分析。呼气时气道直径减小50%以上定义为气道软化。
The purpose of this study was to determine the relationship between airway softening and its morphological changes in patients with chronic obstructive pulmonary disease (COPD). Inspiratory and dynamic expiratory multiphase spiral CT (MD-CT) images of a group of consecutive COPD patients were retrospectively analyzed. Expiratory airway diameter reduction of more than 50% is defined as airway softening.