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目的 :为临床开展鞍区手术提供一组最后筛房的影像解剖学资料。方法 :取 5 0具成人头颅标本 ,行鼻窦冠状位及水平位薄层CT扫描 ,重点观测后筛窦最后筛房的影像解剖形态及其毗邻关系。结果 :测得其矢状径位于 5 .8～ 2 1.5mm之间 ;垂直径位于 9.4～ 2 6 .0mm之间 ;左右径位于 5 .9～ 2 3 .6mm之间。其中 ,最后筛房大于或等于同侧蝶窦腔的有 2 3 % ( 2 3侧 )。结论 :最后筛房与蝶窦、视神经管之间的解剖关系可形成蝶上筛房、蝶旁筛房或Onodi窦。冠状位及水平位鼻窦CT扫描在后筛窦最后筛房的影像解剖研究及临床手术中具有实际的指导作用
OBJECTIVE: To provide a set of image anatomy data for the final screen room for the clinical operation of sellar region surgery. Methods: Fifty adult skull specimens were taken for coronal and horizontal paranasal CT scanning. The anatomical and anatomical features of the final screening room for ethmoid sinus were observed. Results: The sagittal diameter was measured between 5.8-2.5 mm; the vertical diameter was between 9.4-2.6.0 mm; the diameter of the left and right was between 5.9-9.23.6 mm. Among them, the last screening room is greater than or equal to 23% (23 sides) of ipsilateral sphenoid sinus cavity. Conclusion: The anatomical relationship between the last screen room and the sphenoid sinus and the optic canal can form the butterfly on the screen room, the butterfly on the screen room or Onodi sinus. Coronal and horizontal sinus CT scan in the posterior ethmoid final screen room image anatomy and clinical practice has a practical guiding role