无症状心肌缺血检查方法的评价

Evaluation of the Detective Methods for Silent Myocardial Ischemia

目的 分析活动平板 ( TET)、动态心电图 ( DCG)、核素心肌断层显像 ( ECT)等无创伤性方法诊断无症状性心肌缺血。 方法 对 5 0例冠心病和 5 0例正常人进行 TET、DCG和 ECT检查 ,同期行冠脉造影 ,结果对比分析。 结果 TET及 DCG对冠心病有相似诊断价值并明显高于 ECT,ECT敏感性较高、特异性较低。联合任何两项检查均可显著提高诊断的敏感性和准确率 ,联合三项检查敏感性达 89.47% ,特异性 10 0 % ,诊断准确率 94.2 8%。 结论 DCG、TET、ECT联合检查是目前诊断冠心病无症状性心肌缺血 ( SMI)比较理想的无创性方法。

To study non invasive evaluation of treadmill exercise test(TET), dynamic electrocardiogram(DCG),and myocardial computer tomograph scanning(ECT) on silent myocardial ischemia(SMI) \ Methods\ 100 cases,including 50 coronary heart disease(CHD) and 50 volunteers,were studied \ TET, DCG, ECT were taken in each subject \ In the meantime,the results between the combined methods(former three) and selective coronary angiography were analyzed \ Results\ It was found that the value of TET and DCG diagnosing SMI were similar and higher than of ECT \ The sensitivity of ECT was high but its speciality was low \ If any two of the above mentioned methods were used in combination accuracy of diagnosing SMI was improved \ If the three methods were combine sensitivity of diagnosing SMI was 89 47 percent \ Conclusion\ The result suggests that the combined measurements will be a more ideal method for diagnosing SMI \;