Dessi P, Moulin G, Castro F, Chagnaud C, Cannoni M
ENT Department, CHU Timone, Marseille, France.
Neuroradiology. 1994 Oct;36(7):515-6. doi: 10.1007/BF00593511.
Damage to the optic nerve is a serious complication of intranasal sinus surgery. Protrusion of the optic canal into the sphenoid sinus is a major risk factor. In this prospective study of 150 CT studies, we found this anatomical variation in 8% of cases. It was consistently associated with pneumatisation of the ipsilateral anterior or clinoid process. Protrusion of the optic nerve into the posterior ethmoid cells was never observed. CT is a useful part of the preoperative investigation of patients undergoing intranasal sinus surgery. Axial and coronal images obtained or by direct acquisition by reconstructions are necessary to show the position of the optic nerve.
视神经损伤是鼻内鼻窦手术的一种严重并发症。视神经管突入蝶窦是一个主要危险因素。在这项对150例CT研究的前瞻性研究中，我们在8%的病例中发现了这种解剖变异。它始终与同侧前床突或床突气化有关。从未观察到视神经突入后筛窦。CT是接受鼻内鼻窦手术患者术前检查的有用部分。通过重建直接获取或获得的轴位和冠状位图像对于显示视神经的位置是必要的。
