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CT analysis of calcification of intracranid portion of internal carotid arteries in the aged without symptoms

Li Huizhang;Chen Haiyun;Zhang Hua(Beijing Hospital,Beijing 100730)  
Objective Atherosclerosis of carotid artery is an important cause for ischemic cerebrovascular disorders. In this study the relation of calcification of internal carotid arteries with aging and ischemic cerebrovascular disorders was analyzed.Methods Two hundred and ninety-eight cases of aged with CT during physical examination were reviewed at random. All the subjects were examined with GE CT 9800 Quick Scanner with slices of 5mm thickness continuously without enchancement from bottom to top of cranium.Calcification of internal carotid arteries in the region of sella turcica was observed with wide window.Results In our study 164 cases had calcification at the siphon portion of internal carotid arteries. Among them,transient cerebral ischemia occurred at the site of calcification in 82 cases,cerebral thrombosis in 20 cases and cerebral hemorrhage in 2 cases. In 134 cases without calcification,transient cerebral ischemia occurred in 38 cases and cerebral thrombosis in 8 cases.Statistical analysis showed that there was close relationship between calcification of siphon portion of internal carotid arteries and incidence of ischemic cerebrovascular disorders. Conclusions Calcification at the siphon portion of internal carotid arteries increases with aging.Though calcification is a late sign of atherosclerosis of internal carotid arteries, it may suggest the possibility of potential ischemic cerebrovascular disorders.
【CateGory Index】: R543.5
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