【摘要】 目的:为经鼻内镜蝶窦手术、视神经管减压术提供影象解剖学基础。方法:利用螺旋CT三维重建技术对40例(80侧)鼻、鼻窦正常的受试者行蝶窦、视神经管有关解剖数据的影象学测量。结果:两侧视神经管各壁长度均值为:内侧壁12.08±0.62 mm,外侧壁10.16±1.73 mm,上壁9.16±1.17 mm,下壁10.24±1.35 mm。两侧视神经管及蝶窦有关径线均值为:视神经管颅口处:左右径5.57±0.95 mm,上下径4.53±0.78 mm;中部:左右径4.40±0.67 mm,上下径4.36±0.67 mm;眶口处:左右径5.09±0.85 mm,上下径5.90±0.98 mm;鼻小柱前缘中点到蝶窦前壁中点的距离:7.08±0.54 cm;蝶窦最大左右径:17.83±4.38 mm,最大上下径:18.40±3.76 mm,最大前后径:23.19±6.73 mm。结论:螺旋CT三维重建技术可以准确有效地测量蝶窦、视神经管的解剖结构,对经鼻内镜手术具有重要指导价值。更多还原

【Abstract】 Objective: To probe into the normal imaging anatomy of the sphenoid sinus and optic canal and its clinical significance.Methods: The sphenoid sinuses and optic canals of 40 normal subjects were examined by MS CT through three-dimensional reconstruction method.Results:The length of medial wall,lateral wall,roof and floor of the optic canal was 12.08±0.62?mm,10.16±1.73?mm,9.16±1.17?mm,and 10.24±1.35?mm,respectively.The width and the height of the intracranial opening,middle portion,and the intraorbital opening of the optic canal was(5.57±)0.95 mm and 4.53±0.78mm,4.40±0.67?mm and 4.36±0.67?mm,5.09±0.85?mm and 5.90±0.98?mm,respectively.The distance between the anterior edge of the nasal columella and the middle portion of sphenoid sinus was(7.08±)0.54?cm. The maximum transversal diameter of the sphenoid sinus was 17.83±4.38?mm,the maximum vertical diameter was 18.40±3.76?mm,the maximum sagittal diameter was 23.19±6.73?mm.Conclusions: The imaging anatomy of optic canal and sphenoid sinus could be accurately and easily measured by means of three-dimentional reconstruction of MS CT,which is of great value to the nasal endoscopic operation of this area.更多还原