【摘要】 目的探讨应用应变率成像检测左心室节段舒张功能异常在冠心病诊断中的价值。方法 55例临床可疑冠心病患者,通过冠脉造影结果分为病变节段组及非病变节段组,分别测量各段心肌的收缩应变率(SRs)、舒张早期应变率(SRe)及舒张晚期应变率(SRa)。结果非病变节段组室壁的SRe为(3.77±2.47)/s,病变节段组的SRe为(1.15±1.02)/s,差异有统计学意义(P<0.01);非病变节段组室壁的SRa为(1.63±1.49)/s,病变节段组SRa为(1.42±1.32)/s,2组比较差异无统计学意义(P>0.05)。结论应变率成像评价左心室局部舒张功能对冠心病的诊断具有较高的敏感性和特异性,在冠心病诊断中具有一定价值。更多还原

【Abstract】 Objective To investigate the value of strain rate imaging, a method of analyzing regional left ventricular diastolic dysfunction, in diagnosis of coronary artery disease(CAD). Methods Fifty-five patients of CAD were enrolled in our experiment and were divided into two groups by the results of coronary angiography. Regional peak systolic strain rate (SRs), peak early diastolic strain rate (SRe) and peak advanced diastolic strain rate (SRa) were examined using the strain rate imaging. Results The SRe of segments CAD was (1.15±1.02)/s. The SRe of coronary artery normal segments was (3.77±2.47)/s. There was significant difference between the two groups(P<0.01). The SRa of coronary artery disease segments (1.42±1.32)/s. The SRa of coronary artery normal segments was (1.63±1.49)/s. No significant difference was found between the two groups (P>0.05). Conclusions Strain rate imaging is a sensitive and especial method in the diagnosis of CAD.更多还原