螺旋CT在小儿气管支气管异物诊断中的临床应用

Clinical application of spiral CT to thediagnosis of tracheobronchial foreign body

摘要:

摘要： 目的 探讨螺旋CT（64 排）重建技术对小儿气管或支气管异物的诊断价值。方法 对24例疑有气管、支气管异物患儿行64 排螺旋CT 扫描，后处理技术采用多平面重建（MPR）、最小密度投影（MinIP）、表面阴影显示法（SSD）、透明成像（Raysum）、CT仿真内镜（CTVE）、容积再现（VR）对病例进行分析。结果 21例气管支气管异物均获得满意的后处理图像，异物诊断定位与支气管镜检相符100%，3例未见异物，经抗炎治愈。结论 螺旋CT(64 排）成像技术诊断气管或支气管异物符合率明显高于普通X线，是一种非常有价值的检查方法。

Abstract:

Abstract: Objective To explore the value of reconstruction technique of spiral (64 slice) CT in the diagnosis of tracheobronchial foreign body in children. Methods 24 cases of suspected tracheobronchial foreign body were examined with 64 slice CT. The reconstruction technique included multiple planar reconstruction (MPR), minimum intensity projection (MinIP), surface shaded display (SSD), Raysum, CT virtual endoscopy (CTVE), and volume rendering (VR). Results Satisfactory postprocessing images were obtained in all 21 cases with tracheobronchial foreign body. The location of foreign bodies determined by CT was completely accorded with those by bronchial endoscopy. The other 3 cases without foreign bodies were cured with antibiotics treatment. Conclusion With higher coincident rate than that of normal Xray film, reconstruction technique of spiral (64 slice) CT is very valuable in the diagnosis of tracheobronchial foreign body.