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目的:分析先天性支气管闭锁的多层螺旋CT(MSCT)表现,以提高该病的诊断水平。方法:回顾性分析15例先天性支气管闭锁患者MSCT表现;全部病例采用GE公司螺旋CT(Lightspeed 64)行胸部扫描,原始图像传送至AW 4.4工作站进行图像后处理重组,观察病变的特点并结合文献复习。结果:全部病例显示支气管黏液栓的改变,发生在左肺6例,右肺9例;13例显示黏液栓周围有肺气肿;2例无肺气肿,11例粘液栓伴行肺动脉分支变细,所在的肺叶血管细小,分支减少,分布稀疏。结论:MSCT对先天性支气管气闭锁具有较高的诊断价值,能显示先天性支气管闭锁的黏液栓和周围肺气肿的典型征象,后处理多平面重组(MPR)图像及最大密度投影(MIP)可任意角度观察黏液栓的形态、位置及其与邻近支气管、肺血管的关系。结合薄层重建图像观察可提示支气管闭锁部位。
Objective: To analyze the performance of MSCT in congenital bronchial atresia to improve the diagnosis of this disease. Methods: The CT findings of 15 patients with congenital bronchial atresia were analyzed retrospectively. All cases were scanned with GE Healthcare’s Lightspeed 64 chest scan. The original images were sent to AW 4.4 workstation for image post-processing and reorganization. The characteristics of the lesions were observed and analyzed review. Results: All cases showed bronchial mucosal suppository changes in 6 cases of left lung and 9 cases of right lung, emphysema in 13 cases, emphysema in 2 cases, emphysema in 2 cases and pulmonary artery branch in 11 cases Fine, where the lobular vessels are small, fewer branches, sparsely distributed. CONCLUSIONS: MSCT has a high diagnostic value for congenital bronchial gas atresia, showing typical signs of congenital bronchial obliteration of mucosal suppository and surrounding emphysema, post-processing multiplanar reconstruction (MPR) images and maximum density projection (MIP) The mucosal plug morphology, location and its relationship with the adjacent bronchi, pulmonary vessels can be observed at any angle. Combined with thin-layer reconstructed image observation can prompt bronchial atresia.