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目的 研究严重急性呼吸综合征 (SARS)患者X线胸片的改变和影像动态变化。方法对 72例SARS的X线表现进行分析 ,包括X线胸片异常出现的时间、病变最为严重的时间及病变吸收的时间和影像形态。结果 胸部X线异常出现的时间多在发病后的 4～ 7d( 53例 ,73 .6% ) ,X线表现最为严重的时间多在发病后的 8～ 14d( 54例 ,75.0 % ) ,多数病变吸收的时间多为发病后的 15～2 1d( 3 7例 ,51.4% ) ,病变的主要特点是以双侧或单侧的单发或多发大片状模糊影 ( 58例 ,80 .6% ) ,最严重时期变化快。部分病人病变呈游走性改变。X线片上病变吸收后 1个月内CT证实肺内仍具有病变者占 55.0 % ( 11/2 0例 )。结论 胸部X线片可反映SARS患者病变的动态变化 ,但对病变的细微改变显示有限度
Objective To study the changes of X-ray and the dynamic changes of the image in patients with severe acute respiratory syndrome (SARS). Methods 72 cases of SARS X-ray findings were analyzed, including the time of X-ray abnormalities, the most serious lesions and lesions absorbed time and image morphology. Results Most of the chest X-ray abnormalities occurred 4 to 7 days after the onset of disease (53 cases, 73.6%). Most of the X-ray findings occurred 8 to 14 days after the onset of symptoms (54 cases, 75.0%), most of which The pathological changes were mostly absorbed 15 to 21 days after the onset of disease (37 cases, 51.4%). The major characteristic of the lesions were bilateral or unilateral single or multiple lamellar haze (58 cases, 80.6 %), Rapid changes in the most serious period. Some patients showed pathological changes of migration. X-ray lesions within 1 month after the CT confirmed that the lungs still have lesions accounted for 55.0% (11/20 cases). Conclusion The chest radiographs can reflect the dynamic changes of the lesions in patients with SARS, but the subtle changes in the lesions show a limited