摘要
目的 :为开展经鼻蝶窦鞍区手术及功能性鼻窦内窥镜手术提供蝶窦的影像解剖学基础。方法 :取 5 0具成人头颅标本 ,行冠状位、矢状位及水平位薄层CT扫描。观测蝶窦气化发育的情况 ,根据蝶窦向蝶骨体、蝶骨小翼及鞍背气化的程度进行分型分度。结果 :10 0侧蝶窦中属甲介型为 4% ,鞍前型为18% ,半鞍型为 18% ,全鞍型为 14 % ,鞍枕型为 46 % ;另外测得蝶窦的最大左右径的平均值 :左 18.5mm ,右17.6mm ;最大前后径的平均值 :左 2 2 .2mm ,右 2 0 .8mm ;最大上下径的平均值 :左 2 1.0mm ,右 2 0 .4mm。从正中线至蝶窦外侧壁的平均距离左 14 .8mm ,右 15 .2mm。结论 :冠状位以及水平位CT扫描能清晰显示两侧蝶窦腔气化发育的情况 。
To provide image anatomy basis of the sphenoid sinus for the transnasal sphenoid approach and endoscopic sinus surgery.Methods:The pneumatization of sphenoid sinus of 50 cadaver heads was studied through thinner CT scanning with coronal,sagittal and axial position.The sphenoid sinus was classified according to the degree of pneumatization towards sphenoid bone,small wing of sphenoid bone and epippium.Results:The sphenoid sinus could be divided into five types such as concha type,pre sella type,semi sella type,sella type and sella occipital type.The corresponding incident of each type was 4%,18%,18%,14% and 46% separately.The maximum transversal diameter of the sphenoid sinus was 18.5 mm for left and 17.6 mm for right.The maximum sagittal diameter was 22.2 mm for left and 20.8 mm for right.The maximum vertical diameter was 21.0 mm for left and 20.4 mm for right.The distance between the lateral wall of sphenoid sinus and the middle line of body was 14.8 mm for left and 15.2 mm for right.Conclusion:Thinner CT sacnning with coronal and sagittal position can show the pneumatization of both side sphenoid sinus clearly.The different peumatization of sphenoid sirus should be taken into account when choose the operation approach.
出处
《中国临床解剖学杂志》
CSCD
北大核心
1999年第4期309-311,共3页
Chinese Journal of Clinical Anatomy
关键词
蝶窦
影像解剖学
CT
Sphenoid sinus Imaging anatomy CT scanning
