心脏彩色多普勒超声在冠心病慢性心力衰竭患者临床诊断中的应用

目的探讨心脏彩色多普勒超声在冠心病慢性心力衰竭患者临床诊断中的应用及其特异度、灵敏度研究。 方法于2019年3月至2021年3月在河北医科大学第二医院随机选择冠心病慢性心力衰竭患者212例，所有患者均行心脏彩色多普勒超声及冠状动脉造影检查，包括LVDD、LAD、LVEF、E峰/Ea峰、室壁运动情况及诊断后患者的不良反应。对比两者结果的差异，判断心脏彩色多普勒超声诊断冠心病慢性心力衰竭的准确性，分析诊断其特异度和感敏度。 结果对比两种检查方法显示心脏彩色多普勒超声准确度达到93.40%，特异度和灵敏度也较高，与冠状动脉造影检查结果相比，分别达到71.43%、95.61%，阴性预测值为35.71%，阳性预测值为98.99%。 结论心脏彩色多普勒超声检查在判断冠心病慢性心力衰竭患者中有独特的优势，简单、有效、无创，且具有较好的敏感度和特异度，值得临床推广。

Specificity and sensitivity of cardiac color Doppler ultrasound in clinical diagnosis of patients with chronic heart failure

ObjectiveTo investigate the specificity and sensitivity of cardiac color Doppler ultrasound in the clinical diagnosis of patients with chronic heart failure. MethodsA total of 212 patients with chronic heart failure were randomly selected at our hospital from March 2019 to March 2021. All patients underwent cardiac color Doppler ultrasound and coronary angiography. Data including left ventricular diastolic diameter, left atrial diameter, left ventricular ejection fraction, E peak/Ea peak, and adverse reactions after diagnosis were recorded. The results of cardiac color Doppler ultrasound and coronary angiography were compared to calculate the accuracy, specificity, and sensitivity of cardiac color Doppler ultrasound in the diagnosis of chronic heart failure. ResultsThe accuracy, specificity, and sensitivity of cardiac color Doppler ultrasound in the diagnosis of chronic heart failure were 93.40%, 71.43%, and 95.61%, respectively. The negative predictive value was 35.71% and the positive predictive value was 98.99%. ConclusionColor Doppler echocardiography has unique advantages in evaluating patients with chronic heart failure. It is simple, effective, and noninvasive, and has good sensitivity and specificity.