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肺部慢性间质性病变是一组主要累及肺的支持结构,即肺泡壁、小叶间隔、支气管血管周围组织的疾病。胸部Ｘ线平片依然是本病最初的、重要的影像检查方法。由于ＣＴ可以消除影像的重叠,能够比Ｘ线平片更好地显示病变的表现及分布。它比胸部Ｘ线平片更灵敏,当胸部Ｘ线平片看不到异
Chronic lung interstitial lung disease is a group of major support structures involving the lungs, namely the alveolar wall, interlobular septa, bronchial vascular tissue disease. Chest X-ray is still the first of this disease, an important imaging method. Because CT can eliminate the overlap of images, it can display the lesion’s performance and distribution better than X-ray. It is more sensitive than the chest X-ray film, when the chest X-ray film can not see different