Relationship between cerebral ischemic stroke with stenosis and atherosclerosis of carotid and internal carotid artery

[Objective] To study the relationship between cerebral ischemic stroke (CIS) with stenosis and atherosclerosis of carotid and internal carotid artery, and study the etiology of CIS. [Method]100 cases with CIS as investigate group and 40 cases as normal control group. All were examined by using color doppler flow imaging (CDFI) and transcranial doppler (TCD). The lumen diameter, intimamedia thickness ,plaque, echo-character of plaques of carotid artery were studied. The severity of artery stenosis of internal carotid artery and external carotid artery were also studied. [Result]The prevalence of irregular and heterogeneous plaques in patients with CIS was higher than those of control group. The occurrence rate of stenosis with internal carotid artery (ICA) and external carotid artery (ECA) was higher than those of control group .The occurrence rate of stenosis with ICA was higher than those of ECA. [Conclusion]There was a close relationship between CIS and atherosclerosis of carotid artery, stenosis of ICA and ECA. The stenosis was more seen at ICA. There was a close relationship between stenosis in any location and CIS.