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为海绵窦的影像学和神经外科学提供基础资料。利用３５具三维头颅断层标本，１０３例正常三维头颅ＭＲＩ对照研究了海绵窦的位置、形态和内容。结果：海绵窦为颅中窝两层硬脑膜构成的硬脑膜窦，前端达眶上裂，后端达颞骨岩部尖。颈内动脉和脑神经Ⅵ位于海绵窦内，脑神经Ⅲ～Ⅴ位于海绵窦外侧壁内，这些神经与颈内动脉之间有恒定的位置关系，脑神经Ⅲ和Ⅳ位于颈内动脉外上，Ⅴ１和Ⅵ位于颈内动脉外侧稍下，Ⅴ２位于海绵窦外下角。在ＭＲＩ上，海绵窦静脉间隙呈稍低信号，脑神经呈点状或不规则形稍高信号。结论：ＭＲＩ能较好地显示海绵窦的详细解剖，与断层标本相一致，以经过蝶鞍中部的冠状位显示最佳。
Provide basic information for the imaging and neurosurgery of cavernous sinus. 35 cases of three-dimensional head CT scan, 103 cases of normal three-dimensional MRI study of the cavernous sinus position, shape and content. Results: The cavernous sinus was the dural sac composed of two layers of dura in the middle cranial fossa. The anterior fissure reached the supraorbital fissure, and the posterior end reached the tip of the petrous bone. The internal carotid artery and cranial nerves Ⅵ are located in the cavernous sinus. The cranial nerves Ⅲ ~ Ⅴ are located in the lateral wall of the cavernous sinus with a constant positional relationship between the nerves and the internal carotid artery. The cranial nerves Ⅲ and Ⅳ are located outside the internal carotid artery, Vl and VI in the lateral external carotid artery, V2 located in the outer corner of the cavernous sinus. On MRI, cavernous sinus vena cava was slightly lower signal, the brain showed a slightly punctate or irregularly shaped signal. Conclusion: MRI can show the detailed anatomy of the cavernous sinus, which is consistent with the specimen of the cavernous so as to show the best result through the coronal position of the central part of the sella.