Research on distribution of intracranial and extracranial arteriostenosis in patients with cerebral ischemic disease

Objective To study the characteristics of distribution of intracranial artery stenosis and carotid artery stenosis in patients with cerebral infarction. Methods DSA examinations data of 1031 patients with cerebral infarction and TIA in the hospital were cllected and the clinical data of 1000 patients who have full history among 1031 patients were analyzed. Results DSA examinations showed that 680 patients among 1000 suffered cerebrovascular stenosis,with totally 1417 vascular stenosis. According to frequency of stenosis,stenosis locations in turn were 337 middle cerebral artery,291 distal vertebral artery and basilar artery,80 extracranial carotid artery stenosis,207 initial segment vertebral artery stenosis,115 inner carotid artery stenosis,100 with stenosis of anterior cerebral artery,70 with posterior cerebral artery stenosis. And the results showed that the most common positions of vascular stenosis are middle cerebral artery,vertebral basilar system and extracrartial carotid artery. Conclusions Intracranial atherosclerotic stenosis are important causes of ischemic stroke. In the recent 3 years,multiple stenosis disease and extracranial stenosis detection rate obviously rise,Control of hypertension and diabetes,and reducing blood lipids can preventing cerebral atherosclerotic stenosis.