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为评价ＣＴ对特发性肺纤维化（ＩＰＦ）肺内病变判定的有用性，对ＩＰＦ的ＣＴ（ＨＲＣＴ）和胸片所见与临床、肺功能及支气管肺泡灌洗细胞学变化进行相关性分析。结果发现，胸膜下弧形影或新月征是ＩＰＦ较具特征性的ＣＴ改变；ＣＴ或胸片所见与呼吸困难程度、ＦＶＣ（％ｐｒｅｄ）、ＤＬｃｏ（％ｐｒｅｄ）及ＢＡＬＦ中性粒细胞有显著相关性，而相关性的程度ＣＴ高于胸片。认为ＣＴ或胸片均可对ＩＰＦ的临床和肺功能损害及肺泡炎的程度作出某种程度的判定，而ＣＴ对ＩＰＦ的评价优于胸片。
To evaluate the usefulness of computed tomography (CT) in the determination of pulmonary lesions in patients with idiopathic pulmonary fibrosis (IPF), we analyzed the relationship between CT (HRCT), chest X-ray findings and clinical, pulmonary function and bronchoalveolar lavage . The results showed that the subpleural arc or crescent sign was the more characteristic CT change of IPF. The extent of CT or chest radiograph, degree of dyspnea, FVC (% pred), DLco (% pred) and BALF neutrophil There was a significant correlation, while the degree of correlation was higher in CT than in chest radiographs. That CT or chest X-ray on IPF clinical and pulmonary function can be compromised and the extent of alveolitis to make some degree of judgments, and CT evaluation of IPF is superior to chest X-ray.