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目的探讨在冠状动脉斑块稳定性评价中64层螺旋CT诊断方法的临床价值。方法选取我院2012年8月~2014年7月收治冠心病患者124例，按照病情将其分为观察组和对照组，对照组63例患者均为稳定型心绞痛(SAP)，观察组61例患者均为急性冠状动脉综合症(ACS)，所有患者均使用64层螺旋CT诊断，对两组患者的斑块类型、数量和CT值进行统计和比较。结果观察组检出斑块124个，对照组检出斑块137个，观察组中I型斑块检出率(31.5%)显著低于对照组(55.5%)(<0.05)，而Ⅱ、Ⅲ型斑块的检出率(43.5%/25.0%)明显高于对照组(29.2%/15.3%)(<0.05)。观察组致病斑块61个，CT值平均(31±25)HU，显著低于对照组63个治病斑块的CT平均值(71±29)HU(<0.05)。观察组中斑块正向重构率为59.7%，对照组斑块正向重构率是21.6%，观察组明显超出对照组(<0.05)。结论64层螺旋CT能够有效对冠状动脉斑块稳定性进行鉴别，具有临床诊断价值，值得推广使用。“,”Objective To investigate the clinical value in evaluating the stability ofplaque of coronary artery with 64 slice spiral CT diagnosis method. Methods Select 124 cases admit ed in our hospital from 2012 August to the patients with coronary heart disease in 2014 July, according to the il ness wil be divided into observation group and control group, 63 cases in the control group patients with stable angina pectoris (SAP), the observation group of 61 patients with acute coronary syndrome (ACS), al patients were diagnosed using 64 slice spiral CT, of patch types, quantity and value of CT patients in the two groups were statistical y compared. Results In the observation group, 124 plaques were detected, the control group of 137 plaques were detected, the detection rate in the observation group I patch (31.5%) was significantly lower than the control group (55.5%) ( <0.05), while the I , I I typeplaque detection rate (43.5%/25.0%) was significantly higher than the control group(29.2%/15.3%) ( <0.05). The observation group pathogenic plaque 61, the average of CT (31±25) HU, significantly lower than the control group 63 cure patchaverage value of CT (71±29) HU ( < 0.05). The observation group in plaquepositive remodeling rate was 59.7%, control group plaque positive remodeling rate is 21.6%, the observation group was significantly than control group ( <0.05).Conclusion 64 slice spiral CT can ef ectively on the stability of atherosclerotic plaque in coronary artery were identified, with clinical diagnostic value, it is worth to promote the use.