Three-dimensional CT angiography study on the relations between the vertebral artery and atlantoaxial joint
- Author:
- No author available
- Journal Title:
- CHINESE MEDICAL JOURNAL
- Issue:
- 8
- DOI:
- 10.3760/cma.j.issn.0366-6999.2009.08.007
- Key Word:
- vertebral artery;atlantoaxial joint;computed tomography;X-ray;image processing;computer-assisted
Abstract： Background The vertebral artery (VA) and atlantoaxial joint (AAJ), with complicated structures, are located in the depths of the head-neck boundary area, the regional anatomy of which cannot be shown globally and directly. This study aims to evaluate three-dimensional CT angiography (3DCTA) in displaying the AAJ, atlantoaxial segment of the vertebral artery (ASVA) and the identification of their interrelations.Methods Sixty-eight subjects without pathology of the ASVA and AAJ were selected from head-neck CTA examination. All the 3D images were formed with volume rendering (VR) together with techniques of separating, fusing, opacifying and false-coloring (SFOF). On the 3D images, the ASVA and AAJ were observed, and their interrelations were measured.Results All the 3DCTA images were of high quality and up to our requirements. They could cleady and directly show the ASVA, ascending along the AAJ. There were 5 curves in the course of the ASVA, of which 2 curves were away from the atlantoaxial joint, one in the 2nd curve of 0.0 mm-5.4 mm, the other in the 4th of 2.6 mm-9.2 mm. There was no significant difference in the measurements between left and dght (P>0.05). The curved parts of the ASVA slightly expanded, with the biggest diameter of 5.6 mm in the 4th curve. Statistical comparison shows that the left ASVA is larger than the right (P<0.05). Variations of the ASVA were found in 8 cases and of the AAJ in 12.Conclusions 3DCTA can globally and directly demonstrate the structures of the AAJ, ASVA and their interrelations. The 3D imaging data make up and enrich the research contents of regional anatomy and lay the foundation for related study and applications.
- [1]DONG Zhi-hui,FU Wei-guo,GUO Da-qiao,etc.Endovascular repair for a huge vertebral artery pseudoaneurysm caused by Behcet's disease[J].2006,(5).
- [2]Cushing KE,Ramesh V,Gardner-Medwin D,etc.Tethering of the vertebral artery in the congenital arcuate foramen of the atlas vertebra: a possible cause of vertebral artery dissection in children.[J].2001,43(7).
- [3]Sakamoto T,Nakamura T,Matsushita M,etc.Atlantoaxial transarticular screw fixation for a high-riding vertebral artery.[J].2003,28(7).
- [4]Puetz V,Dzialowski I,Demchuk AM,etc.Prognostic value of CT angiography in patients with suspected vertebrobasilar ischemia.[J].2008,18(1).
- [5]A K, Petridis,H, Barth,R, Buhl,etc.Vertebral artery decompression in a patient with rotational occlusion.[J].2008,150(4).
- [6]Jiang T,Pu Y,Zhang X,etc.Clinical study and comparison of magnetic resonance angiography (MRA) and angiography diagnosis of blunt vertebral artery injury.[J].2007,63(6).
- [7]Sheth TN,Mikulis DJ,Winslow JL.Rotational changes in the morphology of the vertebral artery at a common site of artery dissection.[J].2001,52(4).
- [8]Ruehm SG,Panknin C,Lell MM,etc.Cervical CT angiography comparing routine noncontrast and a late venous scan as masks for automated bone subtraction: feasibility study and examination of the influence of patient motion on image quality.[J].2008,43(1).
- [9]Senoglu M,Safavi-Abbasi S,Theodore N,etc.The frequency and clinical significance of congenital defects of the posterior and anterior arch of the atlas.[J].2007,7(4).
- [10]Koda M,Okawa A,Aramomi MA,etc.Anomalous vertebral artery at the extraosseous and intraosseous regions of the craniovertebral junction: analysis by three-dimensional computed tomography angiography.[J].2005,30(21).
- [11]PHILIP C. JOHNSON,W. JERRY OAKES,MARIOS LOUKAS,etc.Foramen arcuale: anatomical study and review of the literature[J].2007,6(1).
- [12]F, Pugliese,F, Crusco,G, Cardaioli,etc.CT angiography versus colour-Doppler US in acute dissection of the vertebral artery.[J].2007,112(3).
- [13]Hong JT,Lee SW,Son BC,etc.Analysis of anatomical variations of bone and vascular structures around the posterior atlantal arch using three-dimensional computed tomography angiography.[J].2008,8(3).
- [14]Micha?l, Bruneau,Jan Frederick, Cornelius,Bernard, George.Antero-lateral approach to the V3 segment of the vertebral artery.[J].2006,58(1 Suppl).
- [15]Sawlani V,Behari S,Salunke P,etc."Stretched loop sign" of the vertebral artery: a predictor of vertebrobasilar insufficiency in atlantoaxial dislocation.[J].2006,66(3).
- [16]Utter GH,Hallam DK,Jarvik JG,etc.Sixteen-slice CT angiography in patients with suspected blunt carotid and vertebral artery injuries.[J].2006,203(6).
- [17]Kang J,Duan S,Ye F.Three-dimensional CT study on normal anatomical features of atlanto-axial joints.[J].2007,29(1).
- [18]G, Sparacia,F, Bencivinni,A, Banco,etc.Imaging processing for CT angiography of the cervicocranial arteries: evaluation of reformatting technique.[J].2007,112(2).