HR-MRI Study Of Atherosclerotic Stenosis Of Basilar Artery

Objective : To explore the difference in the degree of enhancement and vascular remodeling of symptomatic and asymptomatic basilar atherosclerotic plaques with 3.0T high-resolution magnetic resonance wall imaging.Methods: Review the data of 52 patients with basilar atherosclerotic stenosis who underwent high-resolution MRI vessel wall imaging scans admitted to the imaging center of the Second Affiliated Hospital of Xinjiang Medical University from June 2018 to June 2019.Divide them into symptom group(30 cases)and asymptomatic group(22 cases)according to whether there is posterior circulation stroke,compare the types of plaque enhancement and vascular remodeling of the two groups of patients,and use multivariate analysis of their potential risk factors for ischemic stroke.Results:In the symptom group,the number of basilar atherosclerotic plaque enhancement grades of grade 0,grade 1,and grade 2 were 6 cases,11 cases,and 13 cases respectively,with obvious enhancement(grade 2)mainly.In the asymptomatic group,the number of basilar atherosclerotic plaque enhancement grades of grade 0,grade 1,and grade 2 were 11 cases,7 cases,and 4 cases,respectively,with no obvious enhancement(grade 0).The difference in plaque enhancement between the two groups was statistically significant(P=0.049).The type of atherosclerotic basilar artery remodeling in the symptomatic group is mainly positive remodeling,and the main type of asymptomatic group is negative remodeling.The difference is statistically significant(P=0.008).And at the narrowest level,the symptom group has a larger blood vessel area,wall area than the asymptomatic group.ultiple regression analysis showed that in patients with basilar artery plaque,smoking and plaque enhancement was considered an independent risk factor for ischemic stroke(OR=3.716 ? OR=2.337;P < 0.05).Conclusions:Significant enhancement of basilar atherosclerotic plaque is more common in the symptom group,and the type of vascular remodeling in the symptom group is mainly positive remodeling.HR-MRI vessel wall imaging has a good application value in finding unstable plaques in patients with basilar atherosclerosis.