严重急性呼吸综合征的早期X线和CT表现：28例分析
Early X-ray and CT appearances of severe acute respiratory syndrome: an analysis of 28 cases.
作者信息
Zhao Dawei, Ma Daqing, Wang Wei, Wu Hao, Yuan Chunwang, Jia Cuiyu, He Wen, Liu Chunhong, Chen Jianghong
机构信息
Department of Radiology, Beijing You An Hospital, Beijing 100054, China.
出版信息
Chin Med J (Engl). 2003 Jun;116(6):823-6.
OBJECTIVE
To study the early X-ray and CT findings of patients with severe acute respiratory syndrome (SARS).
METHODS
Chest radiography and CT were performed in 28 patients with SARS within one to three days after onset of the disease. CT examinations included conventional spiral CT and high-resolution CT (HRCT). The radiographic and CT findings of these patients were analyzed retrospectively.
RESULTS
Abnormal CT findings were noted in all the patients, but abnormal chest radiographic findings in 17 cases (60.7%, 17/28). CT showed single small focal patchy opacities in 23 patients (82.1%, 23/28), including oval ground-glass opacities in 20 patients, lobular distribution ground-glass opacities in 2 and small patchy consolidation in one. Multi-focal ground-glass opacities were found in 2 patients and extensive opacities in three. In the 28 patients, a total of 31 lesions were found in the upper (7, 22.6%), middle (3, 9.7%), and lower lobes (21, 67.7%). The diameter of the lesions ranged from 20 to 35 mm.
CONCLUSION
The dominant feature of early SARS patients is focal patchy opacity in the lung, and oval small ground-glass opacities are the common morphological findings on CT.
目的
研究严重急性呼吸综合征（SARS）患者的早期X线及CT表现。
方法
对28例SARS患者在发病1至3天内进行胸部X线摄影及CT检查。CT检查包括常规螺旋CT和高分辨率CT（HRCT）。对这些患者的影像学及CT表现进行回顾性分析。
结果
所有患者CT均有异常表现，但胸部X线异常表现者17例（60.7%，17/28）。CT表现为单发性小片状局灶性实变影23例（82.1%，23/28），其中椭圆形磨玻璃影20例，小叶分布磨玻璃影2例，小片状实变1例。2例有多发性磨玻璃影，3例有广泛实变影。28例患者中，上叶发现病变7处（22.6%），中叶3处（9.7%），下叶21处（67.7%）。病变直径20～35mm。
结论
SARS早期患者的主要特征是肺部局灶性片状实变，椭圆形小磨玻璃影是CT常见的形态学表现。
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