Study Of 3.0T 3D-TOF MRA In Distribution Of Intracranial Artery Stenosis In Patients With Cerebral Infarction

Objective:To explore the application of 3.0T 3D-TOF MRA in analyzing the distribution and characteristics of intracranial artery stenosis or occlusion in the patients with cerebral infarction.Methods:Seventy-one patients with cerebral infarction were examed by 3.0T 3D-TOF MRA.The distribution and characteristics of intracranial artery stenosis or occlusion was analyzed.The patients were divided into different groups by the type of the range of infraction and different age,the distribution and characteristics of intracranial artery stenosis or occlusion of the different the range of infraction and different age were analyzed.Results:Of totally seventy-one patients with cerebral infarction,there were fifty-four patients with intracranial artery stenosis or occlusion(54/71,76.1%).The distribution of intracranial artery stenosis or occlusion:there were twenty-eight patients in fore cerebral circulation(28/54,51.9%),there were ten patients in post cerebral circulation(10/54,18.5%),and there were sixteen patients both in fore and post cerebral circulation(16/54,29.6%).The patients of intracranial artery stenosis or occlusion were twenty-five in the lacunar infraction group(25/37,67.6%).,and there were twenty-nine in the non-lacunar infraction group(29/34,85.3%).In the patients of young-middle aged group ,the proportion of intracranial artery stenosis or occlusion.was high.I n contrast,the proportion of intracranial artery stenosis or occlusion was lower in the old aged group .The degree of intracranial artery stenosis or occlusion varies with age.Conclusion:Intracranial artery stenosis or occlusion is the pathogenic basis of cerebral infarction,the stenosis or occlusion incidence rate in fore cerebral circulation was higher than that of the post cerebral circulation.The incidence rate of intracranial artery stenosis or occlusion in the non-lacunar infraction group was higher than that of lacunar infraction group.The distribution of intracranial artery stenosis or occlusion in patients with cerebral infarction differs among different groups of patients,the degree of intracranial artery stenosis or occlusion varies with age.3D-TOF MRA can provide theoretical support for the patients with cerebral infarction.