严重急性呼吸综合征的胸部CT表现

Chest CT manifestations of severe acute respiratory syndrome

目的探讨严重急性呼吸综合征的胸部CT表现以及在诊断和治疗中的价值。方法回顾性分析经临床、流行病学、放射学、实验室检查确诊的18例严重急性呼吸综合征患者的CT资料,其中男8例、女10例,平均34岁。结果18例中有9例表现有片絮状阴影,其中7例见两下肺外带大片棉絮状密度增高阴影,2例为一侧上肺外带小片状密度增高阴影合并另侧肺大片状阴影;18例中有7例见磨玻璃样影,其中双侧全肺1例,两侧下肺3例,单侧下肺2例,单侧上肺1例;1例表现单侧斑片状合并小网状结节影;1例表现为一侧下肺片絮状合并另一侧上肺磨玻璃样影。结论严重急性呼吸综合征的胸部CT表现以不按肺叶或肺段分布的片絮状渗出灶或磨玻璃样淡薄阴影为主。多叶同时受累和双下肺外带多见。

Objective To characterize the chest CT manifestations of severe acuterespiratory syndrome (SARS). Methods CT manifestations of severe acute respiratorysyndrome in 18 proved cases were studied retrospectively.8 were male and 10 female,the average age is 34 years old. Clinical symptoms including fever, cough, normalor decreased WBC number in blood. Results CT scanning revealed patchy shadowsof various siges in the lung field in 9 cased.Large patch in the infeses-external lungfield of 2 sides occussed in 7 cases and a small patch in the superio-external fieldof one side with a large patch in the lung field of the opposite side were found in2 cases.Ground-glass opacification was found in 7 cases.Opacification occupied wholelung field of 2 sides in 1 case,and inferior lung field of 2 sides in 2 cases.Groundglass apacification existed with reticular nadular shadow in one case and with patchyshadow in another case. Conclusion The chest CT manifestations of atypicalpneumonia were mostly patch shadows and ground-glass opacification at differentlobe or segment in bilateral lung field .The most location of these shadows wereinferior lobe in bilateral lung.[