【摘要】 为探讨心电图运动试验对反映冠状动脉（冠脉）病变的价值及应用前景，与冠脉造影对照分析４６１例运动试验结果。运动试验诊断冠心病的敏感性为７４．５％（２４０／３２２例），特异性为８３．５％（１１６／１３９例）。如运动试验以ＳＴ段压低≥０．２ｍＶ为强阳性标准，其反映三支病变及左主干病变的敏感性与特异性分别为６１．３％和７９．１％。运动中运动功量、动脉收缩压增量与冠脉病变支数呈负相关，而ＳＴ段压低持续时间与冠脉病变支数呈正相关。多支冠脉病变及左主干病变患者运动试验阳性率显著高于单支及双支病变（Ｐ＜０．０１）。女性运动试验假阳性率高于男性（分别为２９．８％和８．７％，Ｐ＜０．０５）。更多还原

【Abstract】 BothcoronaryangiographyandexerciseECGestingweredonein461patients.Thecom-parativestudyshowedthatpositiveresultsofexerciseECGtestingdown-slopeorhorizontalde-pressionofSTsegmentmorethan0.1mVduringorafterexercisemaypredictcoronaryarterydisease,thesensitivitywas74.5%(322cases)andspecificity84.2%(139cases).WiththeuseofSTdepressionmorethan0.2mVasthesuper-positivestandard,thesensitivityandspecificityofpositiveexerciseECGtestingtopredicttriplevesseldiseaseandleftmaincoronarydiseasewas61.3%and79.1%,respective-ly.Theworkloadandtheincrementofsystolicbloodpressurehadanegativecorrelation(r=-0.4531and-0.3),buthedurationofSTdepressionhadapositivecorrelation(r=0.4502)withthenumberofdis-easedcoronaryar-teries.Thepatientswithmulti-vesseldiseaseandleftmaincoronaryarterydiseasehadahigherpositiverateofexerciseECGtestingascomparedwiththepatientswithsingleordoublevesseldisease.Thefemalepatientshadahigherfalsepositiveratethanthemale.ItisconcludedthatexerciseECGtestinghassomevalueindiagnosingcoronaryarterydiseaseandpredictingitsseverity.Somepa-rametersinexerciseishelp-fultopredicttheseverityofcoronaryarterydisease更多还原