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目的 探讨气管、支气管可透光异物的CT表现及诊断价值。方法 对 46例气管、支气管可透光异物患者的平片与CT片进行对比分析。结果 本组 46例中 ,CT直接显示气管异物 9例 ,右支气管异物 13例 ,左支气管异物 7例 ,双侧支气管异物 2例 ,CT间接提示右支气管异物 8例 ,左支气管异物 6例 ,双侧支气管异物 1例 ,检出率 10 0 % ;平片未直接显示异物及其所在解剖位置 ,而显示肺气肿、阻塞性肺炎、肺不张等间接征象 3 4例 ,另 12例平片未见异常征象 ,检出率 73 .9%。结论 平片无法直接显示可透光异物 ,只能显示其间接征象 ;CT扫描不仅能提示异物所在的解剖位置 ,而且能直接显示异物的形态、大小等 ,提供较X线平片更多的信息 ,对临床医师取出异物有重要的指导意义
Objective To investigate the CT findings and diagnostic value of tracheal and bronchial translucent foreign bodies. Methods 46 cases of tracheobronchial translucent foreign body plain film and CT films for comparative analysis. Results In this group of 46 cases, CT showed directly 9 cases of tracheal foreign body, 13 cases of right bronchial foreign body, 7 cases of left bronchial foreign body, 2 cases of bilateral bronchial foreign body. CT indirectly revealed 8 cases of right bronchus foreign body, 6 cases of left bronchial foreign body, Side bronchial foreign body in 1 case, the detection rate of 10%; plain film does not directly show the foreign body and its anatomical location, and showed emphysema, obstructive pneumonia, atelectasis and other indirect signs of 34 cases, the other 12 cases of plain film No abnormal signs, the detection rate of 73.9%. Conclusion Plain film can not directly display the light-permeable foreign body, but only show indirect signs. CT scan can not only show the anatomic location of the foreign body, but also directly display the shape, size, etc. of the foreign body to provide more information than X-ray It is of great significance to clinicians to remove foreign bodies