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目的探讨脑梗死后发生脑微出血(CMB)的危险因素及其风险。方法对2009年1月至2010年5月新入院的急性脑梗死患者48例进行常规磁共振显像(MRI)和磁敏感技术显像(SWI)扫描,根据有无CMB分为SWI(+)组和SWI(-)组,记录患者年龄及高血压、脑梗死、糖尿病、高血脂、脑白质疏松症发生情况及抗血小板药物使用情况进行统计分析,并对CMB的发生部位进行统计。结果 48例中,SWI(+)组30例,SWI(-)组18例,两组患者的年龄及高血压、腔隙性脑梗死、脑白质疏松症发生率差异均有统计学意义(均P<0.05)。而糖尿病、高血脂发生率差异均无统计学意义(均P>0.05)。CMB的发生部位以基底节、丘脑为主。结论急性脑梗死合并CMB与高血压、腔隙性脑梗死、年龄、脑白质疏松症有关。脑梗死合并CMB多发生于基底节、丘脑。
Objective To investigate the risk factors and risk of cerebral micro-hemorrhage (CMB) after cerebral infarction. Methods Forty-eight patients with acute cerebral infarction admitted to our hospital from January 2009 to May 2010 underwent routine magnetic resonance imaging (MRI) and magnetic resonance imaging (SWI) imaging. According to the presence or absence of CMB, Group and SWI (-) group. Age, hypertension, cerebral infarction, diabetes mellitus, hyperlipidemia, and the incidence of leukoaraiosis and the use of antiplatelet drugs were recorded and analyzed. The incidence of CMB was also calculated. Results Among the 48 cases, there were 30 cases in the SWI group and 18 cases in the SWI group. There were significant differences in age, hypertension, lacunar infarction and leukoaraiosis among the two groups P <0.05). There was no significant difference in the incidence of diabetes and hyperlipidemia (all P> 0.05). The site of CMB basal ganglia, the main thalamus. Conclusions Acute cerebral infarction with CMB is associated with hypertension, lacunar infarction, age and leukoaraiosis. Cerebral infarction with CMB occurred in the basal ganglia, thalamus.