多层螺旋CT对先天性支气管闭锁的诊断价值

MSCT Diagnosis of Congenital Bronchial Atresia

目的:探讨先天性支气管闭锁的多层螺旋CT特征。方法:回顾性分析医院收治的9例先天性支气管闭锁的病例,男3例,女6例,年龄14～28岁,分析多层螺旋CT上病变的位置、边界、病灶内支气管及血管等情况,分析其影像学特征。结果:先天性支气管闭锁发生于上肺病灶4例,下肺病灶5例。单个肺段发生6例,多个肺段发生3例。所有病例的病灶均表现为局限性透亮度增高区,其内肺血管纤细,且周围正常肺组织呈尖角状突入病灶内。7例病变内见支气管扩张,合并支气管黏液5例,呈"逗号征"4例,合并感染1例。结论:支气管闭锁为支气管树先天发育畸形,具有特征性CT表现。MSCT薄层扫描多平面重建结合气道三维重建可准确诊断。

Objective: To summarize the MSCT features of congenital bronchial atresia. Methods: CT features including lesion location, margin, bronchi and vessels were reviewed of the 9 consecutive patients with congenital bronchial atresia. Results: The lesions located in upper lobe were 4 and in lower lober were 5, in one segment were 6 and multiple segments were 3. All lesions were low attenuating, small vessels and wedge-shaped normai lung extending into the lesions. Other features included bronchiectasis with mucus impaction 5 and comma appearance 4. Conclusion: Bronchial atresia is the congenital malformation of bronchus, it showed specific CT findings. Thin section scanning with MSCT and multiplanar reconstruction can help make correct diagnosis.