收缩后收缩阳性率评价对冠状动脉粥样硬化性心脏病的诊断价值  

Value of postsystolic shortening incidence in diagnosis of coronary heart disease

作　　者：冯程[1] 陈立新[1] 徐金锋[1] 吴瑛[1] 

机构地区：[1]暨南大学第二临床医学院附属深圳市人民医院超声科,广东深圳518020

出　　处：《新乡医学院学报》2013年第6期451-452,455,共3页Journal of Xinxiang Medical University

摘　　要：目的评价收缩后收缩(PSS)阳性率对冠状动脉粥样硬化性心脏病(CHD)的诊断价值。方法对31例CHD患者和17例健康人的左室壁各节段心肌进行应变分析,确定出现PSS的心肌节段数并计算每位受试者的PSS阳性率。以冠状动脉造影作为诊断CHD的金标准,应用受试者工作特征曲线(ROC)评价PSS阳性率诊断CHD的准确性。结果 PSS阳性率诊断CHD的ROC曲线下面积(AUC)为0.832,以41.6%作为诊断CHD的最佳分界值,其敏感性和特异性分别为80.6%、76.5%;其中PSS阳性率诊断冠状动脉多支病变的AUC为0.911,以47.2%作为诊断多支病变病例的分界值,其敏感性为84.6%,特异性为82.4%。结论 PSS阳性率对诊断CHD具有较高的敏感性。Objective To investigate the diagnostic value of the positive rate of postsystolic shortening（PSS） in coronary heart disease（ CHD） patients. Methods The positive rate of PSS in 17 healthy person and 31 patients with CHD were calculated. The receiver operating characteristic curve（ROC） was applied to evaluate the diagnostic efficiency of positive rate of PSS in CHD with coronary angiography as the gold standard. Results The area under the ROC curve（AUC） of PSS positive rate in diagnosing CHD was 0.832. The sensitivity and specificity were 80.6% ,76.5% respectively when the 41.6% as the best cut-off value for the diagnosis of CHD. The AUC of PSS positive rate in diagnosing the multivessel abnormal of coronal：~ artery was 0.911. The sensitivity and specificity were 84.6% ,82.4% respectively when the 47.2% as the best cut-off value for the diagnosis of multivessel abnormal. Conclusion The PSS positive rate has high sensitivity in the diagnosis of CHD.

关 键 词：收缩后收缩 应变 受试者工作特征曲线 

分 类 号：R541.4[医药卫生—心血管疾病]