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下气道阻塞性肺疾病包括一系列疾病(肺气肿、慢支、哮喘、支扩、囊性纤维化、小气道病变等)。其共同病理特点为气道阻塞及气流受阻。平片检查对其诊断有局限性,因为敏感性、特异性均较低,而对其并发症(如肺炎、气胸等)有应用价值。高分辨率CT(HRCT)可显示肺微细结构,显著提高了对气道阻塞性病变的识别能力。本文重点总结阻塞性肺疾病的平片、HRCT表现并进而对其应用价值及局限之处进行讨论。
Lower airway obstructive pulmonary disease includes a series of diseases (emphysema, chronic bronchitis, asthma, bronchiectasis, cystic fibrosis, small airway disease, etc.). The common pathological features of airway obstruction and airflow blocked. Plain film examination of its diagnosis has limitations, because the sensitivity and specificity are low, and its complications (such as pneumonia, pneumothorax, etc.) have value. High-resolution CT (HRCT) can show microscopic lung structure and significantly improve the ability to recognize airway obstructive lesions. This article focuses on the summary of obstructive pulmonary disease plain film, HRCT performance and thus its value and limitations of the discussion.