Analysis of cerebral angiography in 120 patients with transient ischemic attack

Objective To investigate the clinical significance of the cerebral angiography in patients with transient ischemic attack( TIA).Methods 120 patients with TIA underwent cerebral angiography were selected,lesions distribution of cerebral artery in intracranial and extracranial was compared.Results Among 120 cases there were 13 patients with negative cerebral angiography( 10.83%),24 patients with arteriosclerotic changes( 20%),78 patients with vascular stenosis or occlusion( 65%),5 patients with non atherosclerotic changes( 4.17%) including 3 cases of moyamoya disease and 2 cases of aortic dissection.Internal carotid artery TIA in intracranial vascular stenosis or occlusion,vertebral basilar artery system TIA with extracranial vascular stenosis or occlusion.Conclusion Intracranial vascular stenosis is the major cause of TIA in internal carotid artery system,while extracranial vascular stenosis is the major cause of TIA in vertebral basilar artery system,it suggested that patients with TIA should take cerebral angiography early,to guide the clinical therapy.