多层螺旋CT及后处理技术在小儿先天性肺囊性病变中的应用价值

Application Value of Multi-slice Spiral CT and Post-processing Technology in Children with Congenital Cystic

目的:探讨多层螺旋CT扫描及后处理技术在小儿先天性肺囊性病变中的应用价值。方法:收集我院2010年5月—2019年6月收治的29例先天性肺囊性病变患儿的临床及影像资料,分析总结其MSCT扫描及在不同后处理技术中的影像表现。结果:支气管源性肺囊肿12例,多位于两肺下叶,呈单发或多发的圆形或类圆形囊肿。先天性肺囊性腺瘤样畸形9例,7例为大囊型,呈大小不等的大囊伴周围数个小囊;2例为小囊型,多发不规则蜂窝状小囊。增强后囊壁强化,未见有异常血供。肺隔离症7例,均位于下叶后基底段,叶内型6例,叶外型1例;病灶呈多房囊性、实性及囊实性混合表现。增强后可强化,经后处理技术重建,7例病灶由体循环的异常供血动脉供血,6例引流至肺静脉,1例引流至半奇静脉。先天性大叶性肺气肿1例,右肺上叶肺透光度增强,内见肺纹理。结论:多层螺旋CT扫描及各种后处理技术已成为小儿先天性肺囊性病变的主要检查方法,对指导临床治疗及判断预后有重要价值,值得推广。

Objective:To investigate the application value of multi-slice spiral CT and post-processing technology in children with congenital cystic.Methods:29 children with congenital cystic who have been hospitalized in our hospital from May 2010 to June 2019 were included in this study,and their clinical information and imaging data were collected to analyze and summarized the imaging features in application of MSCT scans and different post-processing techniques.Results:12 cases of bronchogenic cysts showed that the cysts mainly located in the lower lobe,present sporadic or multiple and round or round-like.9 cases of congenital cystic adenomatoid malformation,including 7 cases of gross cysts type with several small cysts around various sizes gross cysts,and 2 cases of small cysts type with multiple irregular alveolate-like small cysts.There is enhancement sign present on enhanced CT on the capsule wall but no abnormal blood supply in congenital cystic adenomatoid malformation.Moreover,7 cases of bronchopulmonary sequestration,including 6 cases of intralobar sequestration and 1 case of extralobular sequestration,all located in the posterior basal segment of lower lobes and present multilocular cystic,solid masses and cystic-solid mixed masses.After reconstruction by post-processing technology,we found that 7 cases of lesions were supplied by the abnormal blood supply artery of the systemic circulation,6 cases flow to pulmonary vein pulmonary and 1 case flow to pulmonary vein the hemiazygos vein.Enhancement sign present on enhanced CT.Finally,there is one lobar emphysema case,imaging data showed that increased radiolucent and brochovascular shadows appeared in in the upper lobe of the right lung.Conclusion:Multi-slice spiral CT scanning and various post-processing techniques have become the main examination methods for children with congenital cystic,this application has an important value for guiding clinical treatment and prognosis and is worth promoting in the future.