The optic canal protrudes into ethmoidal and sphenoid sinuses.
内侧壁向筛窦、蝶窦内突入形成视神经管隆凸。
Objective To explore the significance of ethmoidal artery in operation of ethmoidal sinus.
目的探讨筛动脉在筛窦手术中的意义。
Objective To evaluate the value of MPR of ethmoidal uncinate processes using 16 slice spiral ct.
目的通过研究鼻部筛骨钩突的CT影像表现，评价16层螺旋CT多平面重建成像价值。
If it affects the paranasal sinuses, it most commonly involves the ethmoidal and maxillary sinuses.
如果累及副鼻窦，最常见的是累及筛窦及上颌窦。
Objective to provide the anatomic data for the decompression of optic canal through ethmoidal sinus.
目的为经筛窦行视神经管减压等手术的开展提供解剖学依据。
Objective To explore the clinical significance of infraorbital recess in operation of ethmoidal sinus.
目的探讨眶下隐窝在筛窦手术中的意义。
Purpose: To evaluate the CT findings of spheno-ethmoidal region related to functional endoscopic sinus surgery.
目的：探讨CT对蝶筛区域解剖结构的评价能力，以期为功能性内窥镜鼻窦外科手术提供帮助。
Results: Ethmoidal crest was located infra-anterior to the sphenopalatine foramen and anterior to the lateral posterior nasal arteries.
结果：筛骨嵴位于蝶腭孔的前下方，蝶腭动脉分出的鼻后外侧动脉的前方。
Conclusion the variation of infraorbital recess was found frequently, the recess must be paid attention to in operation of ethmoidal sinus.
结论眶下隐窝变异较大，深浅不一，筛窦手术中应注意正确处理该隐窝。
Conclusion Ligation of anterior ethmoidal nerve through orbital is a efficient and feasible treatment for the patients of vasomotor rhinitis.
结论经眶筛前神经结扎术是治疗血管运动性鼻炎有效、可行的方法。
Objective: to explore the relationship between the prognosis of surgical treatment and topical anesthesia test in anterior ethmoidal neuralgia.
目的：探讨筛前神经痛外科手术治疗预后与鼻腔局部麻醉试验之间的关系。
Objective: to provide anatomic basis for the treatment of severe bleeding of nasal septum by ligating ethmoidal artery with functional nasal endoscope.
目的：为鼻中隔严重出血功能性鼻内窥镜引导下筛动脉结扎提供解剖学基础。
Clipping of the ethmoidal arteries and estrogen therapy will be proposed when the vessels responsible for the bleeds are inaccessible to endovascular therapy.
在血管腔内疗法不能抵达出血相关的血管时，考虑筛动脉钳夹和雌激素疗法。
Contrast clearly demonstrates the extent of the lesion within the nasal cavity and invasion of the ethmoidal sinus and anterior cranial fossa (red arrow in Figure 4).
增强扫描清楚的显示病变在鼻腔内的延伸并且侵犯蝶窦和前颅窝（图4，红箭）。
Results: (1) Most of the anterior ethmoidal artery passed through the roof of the ethmoidal cell in front of the basal lamella (66.6%) or the basal lamella itself (26.7%).
结果：（1）筛前动脉与中鼻甲基板的位置关系密切，多走行于中鼻甲基板之前的紧邻筛房顶（ 66.6% ）及中甲基板顶（ 2 6.7% ） ；
Conclusion: ct is able to screen the anatomy and the variations of spheno-ethmoidal region related to function endoscopic sinus surgery. This is a good guide to the surgery.
结论：CT扫描能显示蝶筛区域与功能性内窥镜鼻窦外科手术有关的绝大部分解剖结构及其变异，对手术有很大的指导作用。
Conclusion: The imaging anatomy of ethmoidal roof, cribrum and understanding of the formation of olfactory fovea is the instructive significance for anterior skull base surgery.
结论：了解筛顶板及筛板的影像解剖及嗅凹的形成对减少前颅底外科手术并发症的发生具有十分重要的意义。
Conclusion: the origin and intraorbital course of the ethmoidal artery is variable, which is more common in the posterior ethmoidal artery than in the anterior ethmoidal arteries.
结论：筛动脉的起始及眶内走行多变异，筛后动脉变异较筛前动脉多见。
Figure 2: T2-weighted axial image once again demonstrates a large, heterogeneous lesion located in the ethmoidal sinus (arrow). The lesion is predominately isointense to grey matter.
图2：T2序列轴位影像再次显示一个大的不均匀病变，位于筛窦（箭头）。病变的信号类似于灰质。
Results:Besides the branches of anterior ethmoidal artery and dorsal nasal branches of ophthalmic artery, the primary blood supply to the nose was derived from the lateral nasal arteries.
结果：鼻的血供主要来源于鼻外侧动脉，还有筛前动脉的分支、眼动脉的鼻背支参与。
Results:Besides the branches of anterior ethmoidal artery and dorsal nasal branches of ophthalmic artery, the primary blood supply to the nose was derived from the lateral nasal arteries.
结果：鼻的血供主要来源于鼻外侧动脉，还有筛前动脉的分支、眼动脉的鼻背支参与。
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