儿童球形肺炎的CT影像学诊断  

CT imaging diagnosis of spherical pneumonia in children

作　　者：辛涛 XIN Tao(Department of Medical Imaging,Xuzhou Children's Hospital,Jiangsu 221000,China)

机构地区：[1]徐州市儿童医院医学影像科,江苏221000

出　　处：《放射学实践》2018年第11期1207-1210,共4页Radiologic Practice

摘　　要：目的:探讨儿童球形肺炎的CT影像学特征。方法:搜集2016年1月-2017年7月在本科室进行胸部CT平扫及增强检查,并在首次检查后2～4周行胸部CT平扫复查,确诊为球形肺炎的21例患儿的CT影像学资料。结果:21例患儿共发现球形病灶25处,CT平扫时病灶中心区呈高密度影,中间带见环形气泡影,外周带呈环形稍高密度影,向外周延伸,密度逐渐减低,CT增强时病灶中心区动脉期明显强化,中间带未见强化,外周带轻度强化,病灶内及病灶边缘可见强化血管影,球形病灶与肺门间血管稍增粗,复查CT显示25处病灶中20处完全消失,2处呈絮状稍高密度影,3处为仅剩中心区的小斑片状稍高密度影。结论:儿童肺内球形病灶中"气泡手串征"高度提示球形肺炎的可能。Objective:The purpose of this study was to explore the CT features of spherical pneumonia in children.Methods:The CT imaging features of 21 cases with spherical pneumonia between January 2016 and July 2017 in our department were retrospectively analyzed.All cases had both plain and contrast-enhanced CT scan initially before any treatment,and had CT plain scan as follow-up 2 to 4 weeks after the first examination.Results:25 spherical lesions were found in 21 cases,CT plain scan showed the central area of the lesion was of high density.The ring-like air bubble was seen in the center zone,and a slightly higher density shadow was showed in the peripheral zone.Density was gradually decreased along with it extending outward.Enhanced CT scan showed the central area of lesions was obviously enhanced on arterial phase,the center zone was not enhanced,the peripheral zone was mildly enhanced.Enhanced vascular structures were observed in the lesion and its marginal area.The vascular between the lesion and hilum was slightly thickened.In 21 patients 2~4 weeks after treatment with chest CT scan showed that 20 of the 25 lesions completely disappeared.Two cases showed as flocculent exudative lesion with slightly high density.Three cases remained as patchy lesions with slightly high density in the central area.Conclusion:The"bubble hand string sign",found in the pulmonary spherical lesions in children,highly indicates the possibility of spherical pneumonia.

关 键 词：儿童 肺炎 体层摄影术 X线计算机 

分 类 号：R814.42[医药卫生—影像医学与核医学] R563.1[医药卫生—放射医学]