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目的通过CT血管造影(CTA)观察脑梗死患者的颈内动脉虹吸部钙化形态与其该段血管狭窄的相关性。方法回顾性分析200例脑梗死患者的颈颅动脉CTA检查结果,所有病例根据CTA的图像将颈内动脉虹吸部钙化形态划分为0~4级,根据北美症状性颈动脉内膜切除术(NASCET)标准对颈内动脉虹吸部血管狭窄分级。比较颈内动脉虹吸部钙化形态与该段血管狭窄的关系。结果 200例脑梗死患者中,0级无钙化组、1级小点状钙化组、2级条状钙化组、3级半月状钙化组、4级环状钙化组发生血管狭窄率分别为5.6%,20.9%,66.7%,93.8%,95.8%.经卡方检验和Spearman等级相关分析显示,各组间颈内动脉虹吸部血管狭窄的发生率与钙化的形态比较,差异有统计学意义(P<0.05),颈内动脉虹吸钙化形态与其该段血管的狭窄呈显著性相关(r=0.715,P<0.05)。结论脑梗死患者的颈内动脉虹吸部钙化形态级别越高,越可以作为预测颈内动脉虹吸部血管狭窄的有效依据。
Objective To observe the relationship between the calcification of the siphon department of the internal carotid artery and the vascular stenosis in patients with cerebral infarction by CT angiography (CTA). Methods The CTA findings of 200 patients with cerebral infarction were retrospectively analyzed. The calcification patterns of the siphon in the internal carotid artery were classified into four grades according to the CTA images. According to the North American symptomatic carotid endarterectomy (NASCET ) Standard stenosis of stenosis of internal carotid artery. To compare the relationship between calcification of siphon department of the internal carotid artery and vascular stenosis in this section. Results Among 200 patients with cerebral infarction, the rate of vascular stenosis was 0% without calcification, 1 little punctate calcification, 2 grade calcification, 3 grade semicircular calcification, 4 grade calcification, , 20.9%, 66.7%, 93.8% and 95.8%, respectively.The chi-square test and Spearman rank correlation analysis showed that the incidence of stenosis in siphon of carotid artery in each group was significantly different from that of calcification <0.05). The shape of siphon calcification in internal carotid artery was significantly correlated with the stenosis of this segment (r = 0.715, P <0.05). Conclusion The higher the level of calcification in the siphon department of patients with cerebral infarction, the more it can be used as an effective basis to predict the stenosis of siphon in the internal carotid artery.