摘要
目的探讨单侧大脑中动脉高密度征(HMCAC)在超急性期脑梗死CT诊断中的意义。方法回顾分析本院2010年2月～2011年2月收治的16例单侧大脑中动脉高密度征的超急性期脑梗死患者,所有患者发病1～6h内行CT扫描及发病后24h后复查CT进行双侧大脑密度及脑沟、脑裂对比,发现脑内更多、更早病灶。结果大脑中动脉供血区超急性期脑梗死16例中表现为HMCAS者,均为单侧,且HMCAS诊断脑梗死的特异性高于敏感性,其预后差,死亡率高,16例患者均发现有单侧大脑中动脉高密度征,24h后复查CT,该侧大脑中动脉供血区均出现大片状低密度灶,其中7例大脑中动脉高密度征消失。结论大脑中动脉高密度征的动态变化有助于供血区超急性期脑梗死的诊断及预后判断。
Objective To investigate the significance of unilateral hyperdense middle cerebral artery sign（HMCAS） in the CT diagnosis of hyperacute cerebral infarction.Methods Sixteen cases of patients with cerebral infarction of unilateral HMCAS in our hospital from Febuary 2010 to Febuary 2011 were analyzed retrospectively.All of the patients were taken CT within 1-6 h of invasion and reviewed CT after 24 h of invasion to contrast bilateral brain density,brain sulci,and brain fissure,so as to find more and earlier lesions in the brain.Results All of 16 cases with hyperacute cerebral infarction in blood supplying area of MCA who were HMCAS were targeted to single side,and the specificity of HMCAS in the diagnosis of the cerebral infarction was higher than sensitivity.The prognosis was poor,and the mortality rate was high.All of 16 cases were found that there were unilateral HMCAS,on which side,the brain arterial blood supplying areas all appeared a large patch of low density kitchen after 24 h when CT was checked,and 7 cases of which,HMCAS disappeared.Conclusion The dynamic changes of HMCAS are useful to the diagnosis and prognosis of hyperacute cerebral infarction.
出处
《中国当代医药》
2012年第3期111-112,共2页
China Modern Medicine
