摘要
目的:探讨多层CT在气管、支气管异物诊断中的价值。方法:搜集临床怀疑气管、支气管异物135例。所有病例行多层CT检查,原始图像重建采用多平面重组(MPR)、曲面多平面重组(CMPR)、最小密度投影(MinIP),135患者均进行支气管镜检查。结果:135例患者,129例检查结果为阳性,阳性率(129/135)95.6%,CT直接发现异物120例,占(120/135)88.9%,9例患者通过间接征象判断异物存在,6例患者假阴性。135例患者均经纤维支气管镜检查证实,发现误吸异物131例,4例为支气管内浓痰;另外CT辐射量远大于胸片。结论:多层CT是一种很有价值的诊断气管、支气管异物的检查方法,但亦有其限度,我们应该积极审慎应用多层CT。
Objective：To evaluate the clinical application of multi-slice CT（MSCT） in the diagnosis of foreign body of trachea or bronchus.Methods：135 cases with foreign body in trachea or bronchus proved by clinic history and bronchoscopic forceps were collected in the study and all cases were examined with MSCT.The post-processing reconstruction included multiple planar reconstruction（MPR）,curve multiple planar reconstruction（CMPR）,minimum intensity projection（MinIP）.Results：The foreign body was showed directly in 120 cases（88.9%）.The foreign body was showed indirectly in 9 cases and the total positive rate was（95.6%）.In addition,6 cases showed false negative image.135 cases were confirmed with fiberoptic bronchoscopy,in which 131 cases were foreign body in traches and bronchi and 4 cases were purulent sputum in bronchus.Radiation dose of CT was much higher than radiation dose of chest X-ray.Conclusion：MSCT scanning is a significant diagnostic technique in detecting the foreign body in trachea or bronchus,but,we should make use of it carefully.
出处
《医学影像学杂志》
2011年第4期544-547,共4页
Journal of Medical Imaging
关键词
气管
支气管异物
体层摄影术
X线计算机
Foreign body in trachea and bronchi
Tomography
X-ray computed
Foreign body
