16层螺旋CT后处理技术诊断食源性食管异物

Sixteen-slice spiral CT post-processing technique in the diagnosis of foreign bodies of food in esophagus

目的探讨16层螺旋CT后处理技术诊断食管异物的价值。方法对52例临床怀疑食管异物者均行X线平片、食管吞钡棉检查、CT平扫,比较不同方法对异物的检出率,并与食管镜或手术结果进行比较。CT后处理技术包括多平面重建(MPR)、最大密度投影(MIP)、容积再现(VR)等。结果经食管镜或手术证实的28例患者的食管异物为鸡骨、鸭骨、鱼刺等,形态、大小、长度及所在部位各异,均能被16层螺旋CT后处理技术清晰显示,X线平片发现5例,检出率为17.86%,食管吞钡棉检查发现8例,检出率为28.57%。结论16层螺旋CT后处理技术相对于X线平片、食管吞钡棉检查可明显提高食管异物的检出率,并可评价食管损伤程度及周围脓肿、食管气管瘘等并发症的情况及范围。

Objective To explore the clinical value of 16-slice spiral CT post processing technique in the diagnosis of foreign bodies of food in esophagus.Methods Fifty-two patients with suspicion of foreign bodies of food underwent X-ray photography,barium-soaked cotton and 16-slice spiral CT imaging.The detection rate of foreign bodies of different methods was compared.Results The foreign bodies in esophagus proved with esophagoscopy or operation included chicken bones,duck bones or fish bones.Foreign bodies were all detected（26/26,100%） with 16-slice spiral CT,while 17.86%（5/26） were detected with X-ray and 28.57%（8/26） with barium-soaked cotton.The shape,size,length and location of foreign bodies in esophagus were clearly displayed with 16-slice spiral CT post-processing technique.Conclusion Sixteen-slice spiral CT post-processing technique can not only improve the detection rate of esophageal foreign body obviously,but also evaluate the surrounding and complications of the esophagus.