Cerebral angiographic analysis of patients with transient ischemic attack and cerebral artery stenosis

Objective To investigate the relationship between transient ischemic attack(TIA)and intracranial or extracranial artery stenosis.To explore the values of digital subtraction angiography(DSA) in etiological dignosis and the cerebral-vascular pathology base in the patients with transientis ischemic attack(TIA).Methods DSA was performed to investigate the state of inter carotid artery vertebral artery in 54 patients meeting the diagnostic criterion of TIA after examinations of B ultrasound of neck,transcranial color Doppler(TCD) and cardiac ultrasound.Results Forty-six cases were found artery stenosis in 54 TIA patients.Among them,2 cases with common carotid artery stenosis,13 cases with internal carotid artery stenosis,5 cases with middle cerebral artery stenosis,3 cases with subclavian artery stenosis,18 cases with vertebral artery stenosis,5 cases with basilar artery stenosis.Thirty-one cases with plaques in the stenosis were found.36 cases with TIA were related to stenosis of large arteties,13 cases were embotic TIA,3 cases were lacunar TIA,2 cases related to vascular spasm.Conclusion Most patients with TIA have cerebral artery stenosis and sclerosis plaque.There is a positive correlation between TIA and intracranial or extracranial artery stenosis and sclerosis plaque.