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目的应用超声造影评估颈动脉斑块增强类型与后循环脑梗死(PCCI)的关系。方法对32例PCCI及14例非脑梗死患者行超声造影检查,依据文献对颈动脉斑块进行增强模式分级,比较PCCI侧与非梗死侧斑块分级差异。结果 PCCI梗死侧斑块多为Ⅲ级和Ⅳ级,而PCCI非梗死侧斑块和非脑梗死非梗死侧斑块多为Ⅰ级和Ⅱ级;以斑块超声造影分级大于Ⅱ级为标准预测PCCI的灵敏度和特异度分别为72.97%和70.91%。结论颈动脉斑块超声造影分级是预测PCCI的有效参数。
Objective To evaluate the relationship between carotid plaque enhancement type and posterior circulation cerebral infarction (PCCI) by contrast-enhanced ultrasound. Methods Thirty-two cases of PCCI and 14 cases of non-cerebral infarction underwent contrast-enhanced ultrasonography. Carotid plaques were graded according to the literature, and the differences of PCCI-like and non-infarcted plaques were compared. Results Most of PCCI infarction plaques were grade Ⅲ and Ⅳ, while non-infarcted non-infarcted PCCI plaques and non-infarcted non-infarct plaques were mostly grade Ⅰ and Ⅱ. Plaque contrast echocardiography was more than grade Ⅱ as standard prediction The sensitivity and specificity of PCCI were 72.97% and 70.91% respectively. Conclusions Carotid plaque contrast echocardiography is a useful parameter for predicting PCCI.