Study on relationship between cervicocerebral CT angiography with cerebral infarction and carotid and cerebral artery stenosis and correlation analysis of risk factors

Objective To study the relationship between 128-slice spiral computed tomography angiography(128-SCTA)with cerebral infarction and carotid and cerebral artery stenosis and to perform the correlation analysis of risk factors.Methods The patients with carotid and cerebral artery stenosis discovered by 128-SCTA were divided into the cerebral infarction group and non-cerebral infarction group.The various postprocessings techniques were performed to conduct the vascular postprocessing and the comparaive analysis.The clinical data in 606cases of cervicocerebral vascular diseases treated from September 2011to October 2012were performed the retrospective analysis.Results The proportion of internal carotid arterial stenosis had the highest proportion(24.00%),followed by external carotid arterial stenosis(12.79%)and vertebrobasilar arterial stenosis was least(5.57%).Cervicocerebral arterial stenosis in the left side was significantly higher than that in the right side.The initial part of internal and external carotid arterial stenosis was the most common sites of involement.The incidence rate in bilateral middle,posterior cerebral arterial stenosis was higher than that in the anterior cerebral arterial stenosis.The incidence rate of cervicocerebral arterial stenosis in the cerebral infarction group was significantly higher than that in the non-cerebral infarction group,the difference between the two groups showing statistical significance(P0.01).The non-calcified plaque detection rate in the cerebral infarction group was significantly higher than that in the non-cerebral infarction group,the differences between them was statistically significant(P0.05).Conclusion The cerebral infarction occurrence is closely related with cervicocerebral artery stenosis.The location,range,quantity,character and stenosis degree of plaque in the cervicocerebral arterial stenosis are the important risk factors of cerebral infarction