摘要
目的:研究眼动脉及其分支的显微解剖,为影像诊断、介入治疗和手术方案的制定提供解剖学依据。方法:肉眼及手术显微镜下观测30例(60侧)成人颅底湿性标本的眼动脉及其分支的形态、大小及毗邻关系。结果:①眼动脉分别起自颈内动脉床突上段起始部的前上壁(占93.34%)、海绵窦段前部(占3.33%)或脑膜中动脉(占3.33%),起始处外径为(1.46±0.40)mm。②眼动脉在视神经管内行于视神经下方、管底硬脑膜鞘内,在视神经管颅口处62.50%位于视神经内下方,在视神经管眶口处85.72%位于视神经外下方。③眼动脉眶内段分为3段,并形成2个弯曲。④视网膜中央动脉起始位置不恒定,起始处外径为(0.57±0.12)mm。结论:熟悉眼动脉的行径及其主要分支的正常解剖及变异,有利于眶尖区疾病的影像诊断和手术时避免损伤眼动脉及其分支。
Objective：To provide anatomic basis for imaging diagnosis,interventional therapy and surgery by studying the microanatomy of ophthalmic artery and its branches. Methods： The ophthalmic artery and its branches of 30 adult wet skull base specimens were observed and measured with naked eye and the operative microscopy. Results：①The ophthalmic artery came from the C2 segnent of internal carotid artery （93.34%） ,the C4 segnent of internal carotid artery（3.33%） or the middle meningeal artery （3.33 % ）. The external diameter of its origin was 1.46 ± 0.40（0.68 - 2.24）mm. ②In the optic canal, the ophthalmic artery went into the optic nerve sheath. It lay to the inferomedial of optic nerve in 62.50% in the cranial orifice of optic canal and to the inferomeial in 85.27% in the orbital orifice of optic canal.③The artery was divided into three segments and formed two curves in the orbit. ④The external diameter of the origin of the central retinal artery was 0.57 ± 0.12 （ 0.26 - 1.78） mm. Conclusion： Familiarity to the microanatomy and variance of ophthalmic artery and its branches will be beneficial for us to make correct diagnosis of the disease of orbital apex region and protecting the artery and its branches in operation.
出处
《解剖与临床》
2005年第3期189-191,共3页
Anatomy and Clinics
基金
安徽省自然科学基金资助项目(编号:01043604)
安徽省教育厅自然科学基金资助项目(编号:2001KJ120)
关键词
眼动脉
显微解剖
Ophthalmic artery
Microanatomy
