Kritikos Michael, Sharma Nikhil, Sedora-Roman Neda, Choudhri Omar, Pukenas Bryan, Hurst Robert, Kung David
1 Department of Neurosurgery, University of Pennsylvania, Philadelphia, USA.
2 Department of Radiology, University of Pennsylvania, Philadelphia, USA.
Interv Neuroradiol. 2018 Dec;24(6):596-600. doi: 10.1177/1591019918783973. Epub 2018 Jul 3.
Duplication of the vertebral artery (VA) is a rare vascular variant, with less than 50 reported cases in the literature.
We present four cases of VA duplication and discuss the imaging findings, which highlight the rarely seen VA duplication.
VA duplication is generally considered to be an incidental finding. The VA is formed from the fusion of the longitudinal anastomoses that link the cervical intersegmental arteries, during the 32-40-day stage. The duplication of the VA is a clinically relevant finding for planning of head and neck surgery and neuro-interventional procedures.
椎动脉重复是一种罕见的血管变异，文献报道病例少于50例。
我们呈现4例椎动脉重复病例，并讨论影像学表现，这些表现突出了罕见的椎动脉重复。
椎动脉重复通常被认为是偶然发现。椎动脉由连接颈节段间动脉的纵向吻合支在第32至40天阶段融合形成。椎动脉重复对于头颈外科手术和神经介入操作的规划是一个具有临床意义的发现。
