Morphological changes of the vertebral artery in the cervical vertigo and their influence on blood flow velocity

Objective:To explore the morphological changes of the vertebral artery in the cervical vertigo patient and their influence on blood flow velocity.Methods:TCD and 3D-CTA were used to examine 168 vertebral arteries of 84 patients whose primary clinical diagnosis was cervical vertigo.Results:126 arteries were abnormal in 168 vertebral arteries imaging of 3D-CTA.The abnormal rate was 75%.111 arteries had abnormal speed in the blood flow of 168 vertebral arteries examine by TCD.The abnormal rate was 88.1%.The abnormal imaging was showed as irregular stenosis,thinness,compression by hyperosteogeny,abnormally extended courses,displacements caused by traction of fibrous bands,without display due to complete occlusion of the vertebral artery in the 3D-CTA.Conclusion:TCD showed slow blood flow speed of vertebral artery in the irregular stenosis,developmental thinness,complete occlusion and displayed increase or slow of speed in the compression by hyperosteogeny,abnormally extended courses in the 3D-CTA examine.