额窦引流系统的CT解剖特征及临床意义

目的:探讨额窦引流系统的CT解剖特征。方法:采用螺旋CT,对15例正常成人头颅骨骼标本行横断位扫描,并在工作站行冠状面和矢状面重建。结果:螺旋CT三维成像技术能清楚显示钩突的附着部位和类型,其中在30侧钩突中,纸样板12侧,鼻丘气房3侧,中鼻甲7侧,前颅底5侧,分叉3侧;在额隐窝气房26侧中,终末气房15侧,鼻丘气房5侧,前筛气房6侧;额窦内气房28侧,有额气房8侧,眶上气房12侧,额窦中隔气房即M气房8侧。结论:了解额窦引流系统的CT解剖特征,可以为慢性额窦炎术前提供有用的信息。

CT anatomic features of frontal drainage system

Objective:To study the CT anatomic features of frontal drainage system.Methods: 15 cases of normal adults head specimens underwent axial spiral CT scanming with coronal and sagittal 3-dimensional reconstruction.Results: 3-dimensional reconstruction spiral CT could clearly demonstrate the location and type of uncinate process.Of 30 sides of uncinate process,it adhered to the lamina papyracea in 12 sides(40%),agger nasi wall in 3 sides(10%),middle turbinate in 7 sides(23.3%),floor of anterior cranial fossa in 5 sides(16.7%),and uncinate process furcation in 3 sides(10%).Of 26 sides of frontal recess cells,terminal cells accounted for 15 sides(57.7%),agger nasi cells in 5 cases(19.2%),anterior ethmoidal cells in 6 sides(23.1%).Of the 28 cases of intrafrontal cells,frontal cells accounted for 8 sides(28.6%),superobital cells in 12 cases(42.9%),septum of frontal sinus cells(M cells) in 8 cases(28.8%).Conclusion: The demonstration of the anatomic features of frontal sinus on spiral CT can provide useful information for chronic frontal sinusitis.