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Clinico-anatomical Study of the Central Branches of the Superior Cerebellar Artery

小脑上动脉中央分支的临床解剖学研究

基本信息

批准号：
03670679
负责人：
GIBO Hirohiko
金额：
$ 1.28万
依托单位：
Shinshu University School of Medicine
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1991
资助国家：
日本
起止时间：
1991 至 1992
项目状态：
已结题

项目摘要

In order to improve outcome of the cerebrovascular diseases such as cerebral infarction and subarachnoid hemorrhage, it is important to have precise knowledge about topographical vascular anatomy around the basilar artery and its central branches. Twenty six cadaveric brains (52 superior cerebellar arteries) were used and these vessels were examined under operating microscope. Special attention was directed to the number, diameter, site of origin and termination of the central branches of arising from the proximal SCA (10 mm from the basilar artery). The central branches were divided into the direct perforating and circumflex branches.1. The number of branches from the proximal artery was 1.8 on average. The average number of perforating artery was 1.3, and that of the circumflex branch was 0.5.2. The average diameter was 0.26 mm. The diameter of perforating branch was 0.21 mm and that of circumflex was 0.39 mm.3. The perforating branch originated from the posterior aspect of the SCA in 74.5%, and from the inferior in 25.3%. The circumflex arose from the inferior aspect in 61.5%, from the posterior in 26.9% and the superior 11.5%.4. The site of termination was as follows: The perforating branches terminated at the interpeduncular fossa and crus cerebri and the circumflex branch terminated at the quadrigeminal body and the superior cerebellar peduncle.

为了改善脑梗塞、蛛网膜下腔出血等脑血管疾病的预后，必须对基底动脉及其中枢分支周围的血管解剖有准确的认识。取26例身体脑(52条小脑上动脉)，在手术显微镜下观察。特别注意起源于SCA近端(距基底动脉10 mm)的中央分支的数目、直径、起始点和终止点。中央支分为直穿支和旋支。近端动脉分支数平均为1.8支。穿支平均1.3支，回旋支平均0.5.2支。平均直径0.26 mm。穿支外径0.21 mm，旋支外径0.39 mm。穿支发自SCA后方占74.5%，发自下侧占25.3%。旋支起于下侧占61.5%，后侧占26.9%，上侧占11.5%。穿支止于脚间窝和大脑脚，旋支止于四叉神经体和小脑上脚。