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目的 :回顾性讨论 112例SARS患者急性期的胸部X线和CT表现特征。方法 :经临床诊断的SARS病例112例 ,男 4 3例 ,女 6 9例 ,年龄范围 16～ 82岁 ,平均年龄 35岁。所有患者在发病后 1周内均行胸部X线检查 ,2 2例同时行胸部CT扫描。结果 :112例患者在发病早期最常见的影像学表现为斑片状磨玻璃影 (胸片 79.5 %、CT81.8% )和磨玻璃影与不规则实变或肉芽肿样病变的混合影 (胸片分别为 2 1.4 %和 14 .%、CT分别为 4 5 .5 %和2 7.3%。病灶多位于中下叶 (70 .9% )并呈外周分布 (6 9% )。CT可见其他改变包括小叶内间隔和小叶间隔增厚(即碎石路样改变 ) (36 .4 % )、细支气管扩张 (18.2 % )和少量胸腔积液 (2 2 .7% )等。结论 :SARS急性期的X线和CT表现特征主要为 (1)不同类型的磨玻璃影伴有或不伴有实变或肉芽肿样病变 ;(2 )多累及双肺下叶和呈外周分布为主 ;(3)短期内演变迅速
OBJECTIVE: To retrospectively discuss the chest X-ray and CT findings of 112 SARS patients during the acute phase. Methods: One hundred and twelve cases of SARS were diagnosed clinically. There were 43 males and 69 females, ranging in age from 16 to 82 years with a mean age of 35 years. All patients underwent chest X-ray examination within 1 week after onset, and chest CT scan at the same time in 22 patients. Results: The most common imaging manifestations of 112 patients at the early stage were patchy ground glass (79.5% of chest, CT, 81.8%) and mixed shadow of ground glass and irregular consolidation or granulomatous lesions The chest radiographs were 21.4% and 14%, respectively, with CTs of 45.5% and 23.3%, respectively. The lesions were mostly located in the middle and lower lobe (70.9%) with peripheral distribution (69%). Other CT findings (36.4%), bronchiectasis (18.2%) and a small amount of pleural effusion (22.7%) .Conclusion: Acute The main features of X-ray and CT findings were (1) different types of ground-glass shadow with or without consolidation or granuloma-like lesions; (2) multiple involvement of lower lung and peripheral distribution; 3) rapid evolution in the short term