SARS患者肺内病变基本征象:459例分析

目的：探讨严重急性呼吸综合征(SARS)肺部病变的X线表现。方法：459例符合中华人民共和国“传染性非典型肺炎临床诊断标准”的SAILS患者，在确诊后至15d内均拍摄胸部X线片。对病灶大小、肺的累及程度及形态特征加以统计分析。结果：发现单发病灶156例，多发病灶303例，单侧肺受累201例，双侧受累258例。肺内病变的基本征象为：局限性或大片状高密度实变272例、磨玻璃样改变55例、表现为网格状和细微索条状的间质性改变62例，上述征象的混合存在70例。分布于肺野周边区域的磨玻璃样改变是既往未曾见到的征象。结论：SARS肺部X线表现为多种基本X线征象的单独或混合存在。分布于肺野周边区域的磨玻璃样病灶，是SAILS的特征性表现。

The roentgenographic findings of severe acute respiratory syndrome: 459 cases analysis

Objective:To investigate the X-ray findings of severe acute respiratory syndrome(SARS). Methods:For 459 patients with SARS clinically diagnosed according to The Clinical Diagnostic Standards of Atypical Infectious pneumonia, Ministry Health of PR. China, the chest radiography was taken within the 15 days of admission. For abnormal foci, the size,lung area involved uni- or bilaterally and morphologic characteristics were analyzed. Results:The single focus was found in 156 cases, multi foci in 303 cases. Unilateral lung involvement was found in 201 cases and bilateral in 258 cases. The roentgenographic findings of SARS can be classified as following basic findings: local or extensive consolidation (n=272); ground-glass opacification(n=55); interstitial-hyperplasia-like (IHL) lesion(n=62), which presented as area of network-like or collection of fine fiber hyperplasia and combination of these findings(n=70). The ground-glass opacification located in pulmonary peripherally was never demonstrated before. Conclusion:The basic findings above can be demonstrated along or combination and ground-glass opacification located in pulmonary peripherally could be considered as the characteristics findings of SARS.