心电图运动试验用于检测早期冠心病已有20余年的历史。70年代中期开始,国外又采用无创伤性的~(201)铊心肌显像技术,使运动试验检测冠心病的敏感性大为提高。但在某些情况下如用β阻滞剂治疗、不稳定型心绞痛、体力耐受差、周围血管病和骨骼肌肉疾患等,极量运动试验并非总是可能。因此,晚期又有人采用~(201)铊或心电图潘生丁试验(Dipyridamole Test,简称DT)作为~(201)铊或心电 ECG exercise test for detecting early coronary heart disease has more than 20 years of history. Since the mid 1970s, non-invasive ~ (201) thallium myocardial imaging has been adopted in foreign countries, which has greatly increased the sensitivity of exercise tests to detect coronary heart disease. However, in some cases, such as the use of beta blockers, unstable angina, poor physical tolerance, peripheral vascular disease and skeletal muscle disorders, extreme exercise tests are not always possible. Therefore, in late stage, thallium or thallium or Dipyridamole Test (DT) was used as thallium or electrocardiogram