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目的随访SARS患者肺部影像学表现。方法对15例SARS患者行7个月影像学动态检查并进行分析。结果螺旋CT病变检出率明显高于X线平片(t=5.5228,P<0.01)和普通CT(t=2.5888,P<0.01)。渗出性病变在2个月后仍见缓慢吸收。15例患者中,13例在CT上见残留病变,主要表现为磨玻璃样阴影,HRCT表现为细网状阴影。多位于双侧(10/13)和下叶(11/13)。结论SARS的影像学随访应首选螺旋CT结合HRCT,发病2个月后渗出病变基本吸收,残留病变吸收缓慢。
Objective To investigate the imaging features of lung in patients with SARS. Methods Fifteen SARS patients underwent 7-month imaging dynamic examination and analysis. Results The detection rate of spiral CT was significantly higher than that of plain radiography (t = 5.5228, P <0.01) and normal CT (t = 2.5888, P <0.01). Exudative lesions still see slow absorption after 2 months. Of the 15 patients, 13 showed residual lesions on CT, with ground glass-like shadows and HRCT showing fine-reticular shadows. More on both sides (10/13) and lower lobe (11/13). Conclusions Spiral CT combined with HRCT should be the first choice of follow-up of SARS. After 2 months of onset, the exudative lesions are basically absorbed and the residual lesions are absorbed slowly.