摘要
目的研究小脑后下动脉的显微解剖，为神经外科手术提供临床解剖资料。方法手术显微镜下观察测量20具（共40侧）人脑标本的小脑后下动脉（PICA）的起始行径、直径、主要分支、穿动脉及分布，检查PICA与脑神经根的关系。结果40侧标本共发出PICA35支，平均管径（1．6±0．6）mm，距离椎基底动脉汇合点平均（16±5）mm。在35支PICA中28支PICA走行在第Ⅻ脑神经根之间，7支走行在第Ⅻ脑神经根下方，32支走行在第Ⅺ脑神经根之间。结论PICA是椎基动脉系统重要的分支，变异多，走行与脑神经关系密切，熟悉解剖结构，在后颅窝手术中予以保护具有重要意义。
Objective To study the microsurgical anatomy of the posterior inferior cerebellar artery （PICA） for neurosurgery. Methods Twenty Chinese adult brain samples （40 sides） were measured with microscope for the diameters, lengths, origins, courses, and the branches of the PICA. The relationship between the PICA and cranial nerves was also checked. Results There were 35 PICAs in 20 brain samples. The mean diameter of the PICAs was （ 1.6 ±0. 6 ） ram, the mean length from PICAs＇ origin of vertebral artery to the vertebrobasilar junction was （ 16 ±5） mm. In 35 PICAs,28 PICAs go through the rootlets of Ⅻ cranial nerves,7 PICAs go inferior XH cranial nerves,and 32 PICAs go through the rootlets of XI cranial nerves. Condusions PICA is an important branch artery with more variation and complex relationship to the cranial nerves trend in the vertebral artery system. It is necessary to master the microsurgical anatomy of PICA and to be careful protection during the neurosurgical operations.
出处
《中华外科杂志》
CAS
CSCD
北大核心
2010年第3期224-226,共3页
Chinese Journal of Surgery
基金
江苏省医学重点学科基金资助项目（xk2007227）
关键词
椎动脉
解剖学
小脑后下动脉
神经外科手术
Vertebral artery
Anatomy
Posterior inferior cerebellar artery
Neurosugical procedures
