先天性支气管闭锁在多层螺旋CT的征象与鉴别诊断

【摘要】 目的:探讨先天性支气管闭锁在多层螺旋CT的征象与鉴别诊断。方法:回顾性分析9例先天性支气管闭锁患者多层螺旋CT征象。肺部常规5mm层厚扫描,在64层螺旋CT机进行0.625mm后处理重组,获得多平面重建(MPR)、最大密度投影(MIP)和容积重建(VR)图像,记录病变的部位、形态和周围肺组织改变。结果:9例均能显示多发分支状和棍棒状肿块或结节样阴影及其周围气肿改变,其中3例黏液囊肿内含气体。5例位于右肺,4例位于左肺;3例发生于段支气管,6例在亚段支气管。结论:多层螺旋CT能够显示先天性支气管闭锁的黏液栓塞和周围肺野过度充气的典型征象,可对肺内不同性质的结节鉴别。更多还原

【Abstract】 Objective: To investigate the multislice helical CT( MSCT) characteristics and differential diagnosis in congenital bronchial atresia( CBA) . Methods: MSCT features of five patients with CBA confirmed by follow up were respectively reviewe,underwent MSCT with 5 mm slice thickness. 0. 625 mm thickness images with0. 625 mm reconstruction interval were performed on 64 slice helical CT,and multiplanar reconstruction ( MPR ) ,maximum intensity projection ( MIP) and volume rendering ( VR) were made at a dedicated workstation. The involved segment of lung,shape of bronchocele and hyperinflation around bronchocele were recorded. Results: On CT findings,all 9patients demonstrated bronchocele and peripheral emphysematous changes. An air fluid level within the bronchocele was seen in 3 cases by MSCT. 5 CBAs were in the left and 4 in the right. The segmental bronchus was affected in 3 cases and the subsegmental in 6 case. Conclusion: MSCT can show the tipical radiologic finding of the branching tubular mucocele and emphysematous of the peripheral lung field in CBA,and to identify the different kinds of pulmonary nodules.更多还原