Satapathy Bikash Chandra, Mohapatra Chinmayi
Department of Anatomy, Kalinga Institute of Medical Sciences (KIMS), KIIT deemed to be University, Bhubaneswar, Odisha, India.
Department of Anatomy, SCB Medical College, Cuttack, Odisha, India.
Asian J Neurosurg. 2018 Jul-Sep;13(3):689-692. doi: 10.4103/ajns.AJNS_321_16.
The basilar artery (BA) is formed by the fusion of right and left vertebral arteries and divides to form right and left posterior cerebral arteries. This study was done to provide a baseline database regarding length, mid-length diameter, level of origin, and level of termination of BA.
Thirty-eight formalin-fixed brains were obtained from cadavers dissected for undergraduate studies. The external length and the average external diameter of BA were measured by a digital Vernier caliper. Variation in origin and termination of BA was noted using magnifying glass.
The length and diameter of the BA were 25.58 ± 3.57 mm and 3.05 ± 0.41 mm, respectively. The origin and termination of BA was normal in most cases. In two cases, the origin was above the pontomedullary junction, and in one case, it was below. In two cases, the termination was above the pontomesencephalic junction, and in one case, it was below.
There was no gender predisposition in length and diameter of the basilar artery. The baseline data established in this study regarding length, diameter, level of origin and level of termination of basilar artery will help neurosurgeons and interventional radiologists to diagnose as well as plan and execute various vascular procedures such as shunting for the treatment of aneurysms and stenosis in the blood vessels of the posterior cranial fossa.
基底动脉由左右椎动脉汇合而成，分支形成左右大脑后动脉。本研究旨在提供关于基底动脉长度、中段直径、起始水平和终止水平的基线数据库。
从用于本科研究的尸体上获取38个福尔马林固定的大脑。用数字游标卡尺测量基底动脉的外部长度和平均外径。使用放大镜记录基底动脉起始和终止的变异情况。
基底动脉的长度和直径分别为25.58±3.57毫米和3.05±0.41毫米。大多数情况下，基底动脉的起始和终止正常。2例起始位于脑桥延髓交界处上方，1例位于下方。2例终止位于脑桥中脑交界处上方，1例位于下方。
基底动脉的长度和直径不存在性别倾向。本研究建立的关于基底动脉长度、直径、起始水平和终止水平的基线数据将有助于神经外科医生和介入放射科医生诊断以及规划和实施各种血管手术，如在后颅窝血管中进行分流以治疗动脉瘤和狭窄。
