Vasović Ljiljana P, Jovanović Ivan D, Ugrenović Sladjana Z, Andjelković Zlatibor P
Department of Anatomy, Faculty of Medicine, University of Nis, Serbia.
Surg Neurol. 2008 Sep;70(3):287-94; discussion 294. doi: 10.1016/j.surneu.2007.06.087. Epub 2008 Jul 17.
Although centuries of the human CAC research are behind us, still there is a stimulus for the authors to describe something new or to add to the "archive" of already known facts about its angioarchitecture.
With normal configurations of the posterior part of the CAC in early prenatal status, 172 brains of human fetuses from the 13th to the 24th week were used in the purpose of investigation. Brain arteries were injected and microdissected using a surgical microscope.
According to diameter values of vascular components in the posterior part of the CAC, 6 basic types and the corresponding number of their subtypes are formed. Incidences of bilateral transitory (18.6%), fetal (9.3%), and adult (33.1%) types, as well bilateral asymmetric types (fetal-transitory in 5.8%, adult-transitory in 14.5%, and adult-fetal in 18.6% of cases), proved that dominant configuration of posterior part had not been present in the period from the fourth to the sixth gestational month.
The finding of normal subtypes of the posterior part of the CAC, as well as the absence of some subtypes, is a challenge for future studies of the posterior arterial pattern within vascular abnormalities or diseases.
尽管人类大脑后交通动脉（CAC）的研究已历经数百年，但作者们仍有动力去描述新的内容，或为已有的关于其血管构筑的“知识库”增添内容。
以产前早期CAC后部的正常形态为研究对象，使用172例孕13至24周人类胎儿的大脑进行研究。利用手术显微镜对脑动脉进行注射和显微解剖。
根据CAC后部血管成分的直径值，形成了6种基本类型及其相应数量的亚型。双侧过渡型（18.6%）、胎儿型（9.3%）和成人型（33.1%）以及双侧不对称型（胎儿-过渡型占5.8%、成人-过渡型占14.5%、成人-胎儿型占18.6%）的发生率表明，在妊娠第4至6个月期间，后部的主要形态并不存在。
CAC后部正常亚型的发现以及某些亚型的缺失，对未来血管异常或疾病中后部动脉模式的研究构成了挑战。
