摘要
目的 研究环池及其蛛网膜的显微解剖学特点,并探讨其临床意义.方法 在手术显微镜下观察20例尸头环池的形态、边界、内容物及相关蛛网膜结构.结果 环中脑膜由覆盖幕缘及鞍背的外层蛛网膜发出并环绕中脑,可分为前、后两个部分;环池位于该膜的上方,主要包括脉络膜前动脉、大脑后动脉、基底静脉,有时可见部分小脑上动脉.环池分别与颈内动脉池、脚间池、动眼神经池、小脑脑桥角池、小脑中脑裂池及四叠体池交通.结论 环池是一个幕上脑池,了解环池及其蛛网膜的解剖结构,有助于显微手术操作及手术入路的设计.
Objective To study microanatomy features and clinical significance of ambient cisterns and their arachnoidal membranes in detail. Method Ambient cisterns including their shapes, borders,contents and arachnoidal membranes were observed in 20 cadaveric brains using an operating microscope. Results The perimesencephalic membrane arises from the outer arachnoid membranes covering the tentorial edge and the dorsum sellae. The ambient cistern is located above the perimesencephalic membrane, with 4 walls （ top, bottom, medial and lateral ） anteriorly and 5 walls （ top, bottom, medial, lateral and posterior- medial）posteriorly. The cistern contains the anterior choroidal arteries, the posterior cerebral arteries,the basal vein, and sometimes the segments of the superior cerebellar arteries. The ambient cistern communicates with the carotid cistern anteriorly, the interpeduncular cistern medially, the oculomotor cistern inferomedially, the cerebellopontine and cerebellomesencephalic cistern inferiorly, and the quadrigeminal cistern posteromedially. Conclusions The anatomic features of the ambient cistern and its arachnoid membranes, boundaries, contents and relationships with other cisterns were identified in this study. The ambient cistern is situated above the level of the tentorium. The knowledge about the cistern and its arachnoid membranes helps to perform microsurgical operations and approaches.
出处
《中华神经外科杂志》
CSCD
北大核心
2011年第3期285-289,共5页
Chinese Journal of Neurosurgery
关键词
环池
蛛网膜
显微解剖
神经外科手术
Ambient cistern
Arachnoid membranes
Microanatomy
Neurosurgery
