筛骨钩突上端附着及额窦引流位置的冠状位CT观察

目的 通过冠状位CT扫描图像来观察筛骨钩突上端的附着及额窦引流与钩突间的关系。方法 选择我科因鼻窦炎等鼻部疾病住院患者50例，行64层CT扫描，去除局部结构不清者5侧，观察95侧患者筛骨钩突上端附着、额窦引流情况及规律。结果 62%的筛骨钩突上端有多个（两个或以上）附着点；94%（89/95）额窦直接引流入中鼻道;当筛骨钩突上端有多个附着点时，95%（56/59）的额窦直接引流入中鼻道。结论 鼻窦冠状位可清晰显示额隐窝周围结构，能基本满足临床手术要求；筛骨钩突上端附着方式与额窦引流关系密切，清楚认识其规律性对于鼻内窥镜下额窦手术有重要指导意义。

Coronal computed tomographic analysis of the uncinate process and frontal sinus drainage pathway

Objective To recognize the regularity of the uncinate process'superior attachment sites and frontal sinus drainage pathway in rhino-patients. Methods 50 coronal computed tomography scans of the sinuses performed from July 2007 to November 2007 were evaluated. Result About 62% (59/95) of the uncinate process had two or more superior attachment sites, and the other 38%(36/95) had one superior attachment site.When the uncinate process had two or more superior attachment sites, 95%（56/59） of frontal sinuses directly drained into the middle nasal meatus. Conclusion The structure of the frontal recess could be clearly recognized by coronal computed tomography.