1Doherty BJ,Heggeness MH. The quantitative anatomy of the atlas[J]. Spine, 1994,19 (22) : 2497-2500.
2Stefan P, Markus H, Thomas R, et al. CTA in the detection and quantification of vertebral artery pathologies: a correlation with color Doppler sonography[J].Neuroradiology,2007,49: 645 -650.
3Yamazaki M, Koda M, Aramomi MA, et al. Anomalous vertebral artery at the extraosseous and intraosseous regions of the craniovertebral junction: analysis by three-dimensional computed tomography angiography[J]. Spine, 2005, 30(21) : 2452-2457.
4Hong JT, Park DK, Lee MJ, et al. Anatomical variations of the vertebral artery segment in the lower cervical spine: analysis by three-dimensional computed tomography angiography[J]. Spine, 2008, 33(22): 2422-2426.
5Oetgen ME, Lawrence BD, Yue JJ. Does the morphology of foramen transversarium fractures predict vertebral artery injuries[J]. Spine, 2008, 33(25): E957-961.
6Satoshi Y, Kuniki E, Yoshihiro K, et al. Posterolateral protrusion of the vertebral artery over the posterior arch of the atlas: quantitative anatomical study using three-dimensional computed tomography angiography[J]. J Neurosurg Spine, 2008, 9:167- 174.
7George P,Basilios P,Christos T, et al. Gross morphology of the bridges over the vertebral artery groove on the atlas[J]. Surg Radiol Anat,2005,27 : 129-136.
8Yoshitaka K, Shin-ichi K, Shin-ichi K, et al. Insertion of lateral mass screw of the atlas via the posterior arch: anatomical study of screw insertion using dry bone samples of the atlas from Japanese cadavers[J]. J Orthop Sci, 2008, 13:452-455.
9Mehmet S, Yakup G, Kasim Z, et al. The effect of posterior bridging of C-1 on craniovertebral junction surgery[J]. J Neurosurg Spine, 2006, 5:50-52.
10Sait N, Handan C, Feridun A, et al. Anatomical and computed tomographic analysis of C1 vertebra[J]. Clinical Neurology and Neurosurgery, 2003, 105: 245-248.
7Vieco PT, Maurin EE 3rd, Gross CE. Vertebrobasilar dolichoectasia:evaluation with CT angiogr-aphy. AJNR Am J Neuroradiol, 1997, 18(7): 1385-1388.
8Magarelli N, Scarabino T, Simeone AL, et al. Carotid stenosis: a comparison between MR and spiral CT angiography. Neuroradiology, 1998,40(6): 367-373.
9Cinat ME, Pham H, Vo D, et al. Improved imaging of carotid artery bifurcation using helical computed tomographic angiography. Ann Vasc Surg, 1999, 13(2): 178-183.
10Kano Y, Sano H, Katada K, et al. Application of three-dimensional CT angiography (3D-CTA) to cerebral aneurysms. Surg Neurol, 1999 , 52(2): 113-122.
