利用CT扫描和蝶窦新分类方法对国人蝶窦发育情况的研究

A new classification of extensions of the sphenoid sinus of Chinese adult by CT

目的:根据最新的蝶窦分类方法对中国人的蝶窦进行分类研究,了解中国人的蝶窦发育状况。方法:收集100例成人蝶窦的CT检查资料,排除标准为CT显示有蝶窦病变、颅内肿瘤、颅面部解剖异常者。通过GE公司AW4.4图像后处理系统,利用MPR技术对原始图像进行x、y、z轴调整,得出标准对称的轴位、矢状位、冠状位重建图像。依最新的分类方法进行分类。结果:中国人的蝶窦气化程度似乎有"两极分化"趋势,即气化较差的如甲介型及鞍前型占10%,而气化良好者其气化程度远高于国外。蝶体型、外侧型、小翼型、前向型均未见,而斜坡型占26.66%,混合型占73.33%,中国人蝶窦的混合型比例更高。结论:蝶窦的不同气化程度对于各种经蝶手术操作会有重大影响,术前完善影像学检查,仔细对其进行分型,不仅有利于判断蝶窦的气化程度、分型,而且可以很好地明确蝶窦周围的重要血管、神经结构,甚至有助于判别其解剖标志,对于各种经蝶手术有极大帮助。

Objective：To examine various pneumatized extensions of the sphenoid sinus of Chinese people.Method：The sphenoid sinus and its surrounding structures were examined from 100 computed tomography images of the sinus.The type of the sphenoid sinus was classified according to the various extensions of the sinus.Result：The type of the sphenoid sinus was classified into the following 6basic types based on the direction of pneumatization：sphenoid body,lateral,clival,lesser wing,anterior,and combined.Conclusion：The variations in the extensions of pneumatization of the sphenoid sinus may facilitate entry into areas bordering the sphenoid sinus.