Chronic obstructive pulmonary disease(COPD)is a heterogeneous and complex disease, and is characterized by exertional dyspnea and chronic cough. For many years, lung function testing have been used to diagnose COPD, but the sensitivity of lung function testing is low, so there is an urgent need for more sensitive diagnostic methods that show early changes in pathology. In recent years, with the rapid development of HRCT, quantitative CT, new magnetic resonance imaging technology, optical coherence tomography (OCT), artificial intelligence, electrical impedance tomography, etc, it provides a basis for the early diagnosis of COPD. This article reviewed the progress in imaging studies of early COPD in recent years.
慢性阻塞性肺疾病（简称慢阻肺）是一种高度异质性和复杂性肺部状况，以劳力性呼吸困难、慢性咳嗽为主要特征。多年来，肺功能检查一直被用来诊断慢性阻塞性肺疾病，但肺功能检查的敏感性低，因此需要寻求更敏感的诊断方法，显示病理学的早期改变。近年来，随着高分辨率CT、定量CT、新型磁共振成像、光学相干成像（OCT）、人工智能等的快速发展，为早期识别慢阻肺提供了依据。本文综述近年来有关早期慢阻肺影像学研究的进展。.