心电图运动试验是诊断冠心病的一个有价值的非侵入性手段。多年来,心电图ST段移位被认为是运动诱发心脏缺血的有力证据,并一直作为运动试验阳性判断标准。遗憾的是ST段移位也可见于非冠心病的其他器质性心脏病,而且运动试验引起的ST移位对进行流行病学调查和鉴别是否有冠心病是非常困难 ECG exercise test is a valuable non-invasive means of diagnosing coronary heart disease. Over the years, electrocardiographic ST segment displacement is considered to be evidence of exercise-induced cardiac ischemia and has been used as a positive test for exercise testing. Unfortunately, ST segment displacement can also be seen in other non-coronary heart disease, and ST-displacement caused by exercise testing for epidemiological investigation and identification of coronary heart disease is very difficult