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目的 研究严重急性呼吸综合征 (SARS)患者胸部X线影像及变化规律。方法 临床诊断为SARS者 46例 ,每间隔 2～ 4d摄胸片复查 ,分析全部胸片的影像表现和动态变化。结果 首次胸片正常但不能排除SARS ,在拍摄病变初期X线胸片的 3 0例中 ,4例在发病 10d后才发现胸部异常。病变早期胸片表现以单发小片状阴影为主 ( 66.7% ,2 0 / 3 0 )。动态观察病变的影像变化快 ,而且病程中严重程度有反复 ,8例患者肺内病变吸收缓慢。死亡患者肺内有多发弥漫病变及病变逐渐减轻者各 3例。结论 胸部X线检查可用于SARS的早期发现及显示病程的变化。但对于早期诊断和判断预后需结合临床及实验室检查
Objective To study the chest X-ray images and changes of patients with severe acute respiratory syndrome (SARS). Methods 46 cases of SARS were diagnosed clinically. The chest radiographs were reviewed every 2 ~ 4 days. The imaging findings and dynamic changes of all chest radiographs were analyzed. Results The first chest radiograph was normal but SARS was not ruled out. Of the 30 cases of radiographic chest radiographs in the early stage, 4 cases showed chest abnormalities 10 days after onset. Lesions early chest X-ray showed a single flake-based (66.7%, 20/30). Dynamic observation of lesions of the image changes rapidly, and the severity of the course of repeated, 8 patients with lung lesions absorbed slowly. The death of patients with multiple lesions in the lungs and lesion gradually reduced in 3 cases. Conclusion Chest X-ray examination can be used for the early detection of SARS and display changes in course of disease. But for the early diagnosis and prognosis to be combined with clinical and laboratory tests