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目的分析先天性支气管闭锁的CT和MRI表现,提高对该病的认识。方法对6例先天性支气管闭锁患者行CT和MRI检查。东芝64层CT和西门子3T MRI扫描仪扫描后原始数据均传至工作站行后处理,均行支气管树成像及多平面重建,主要观察病变的部位、形态、密度(或信号)和周围肺组织的改变。结果6例病例CT均显示黏液栓及肺气肿改变,MRI不能显示肺气肿改变,但对黏液栓显示更佳,均表现为稍短T1长T2信号。4例发生于左侧,2例发生于右侧。结论支气管黏液栓和局限性肺气肿征象是先天性支气管闭锁的典型影像学表现,黏液栓MRI信号具有特征性,CT扫描后处理MPR和支气管树成像技术、MRI冠状位及矢状位扫描对该病的诊断能提供更多信息。
Objective To analyze CT and MRI manifestations of congenital bronchial atresia to improve their understanding of the disease. Methods 6 cases of congenital bronchial atresia patients underwent CT and MRI examination. After the data were scanned by Toshiba 64-slice CT and Siemens 3T MRI scanner, the original data were sent to the workstation for post-processing. Bronchial tree imaging and multiplanar reconstruction were performed to observe the location, morphology, density (or signal) of the lesion and the surrounding lung tissue change. Results Six cases of CT showed mucus plug and emphysema changes, MRI can not show emphysema changes, but showed better mucus plug, showed short T1 T1 signal. 4 occurred on the left and 2 occurred on the right. Conclusions The signs of bronchial mucosal suppository and focal emphysema are typical imaging findings of congenital bronchial atresia. MRI signals of mucinous thrombus are characteristic. CT scan postprocessing MPR and bronchial tree imaging, coronal and sagittal scan of MRI The diagnosis of the disease can provide more information.