McGuire L B
Arch Intern Med. 1981 Feb;141(2):229-32.
Standard exercise electrocardiography to detect coronary artery disease involves limitations of accuracy in a population of apparently healthy persons, to the extent that its value for counseling such individuals is doubtful. Among subjects being examined for chest pain, however, the accuracy of the exercise ECG in predicting coronary obstructive disease is better. In addition, the presence of more severe coronary obstructive disease tends to be associated with more distinctly abnormal tests at low levels of exercise. This tendency of association between marked ST-segment displacement at low exertion levels and more severe obstructive disease adds a measure of prognostic value to the standard exercise ECG in persons with chest pain or after myocardial infarction. The addition of either isotopic cardiac imaging or coronary arteriography to exercise ECG will be appropriate for situations in which either the ECG is known to be nonspecific or inadequate exercise is achieved.
标准运动心电图用于检测冠状动脉疾病时，在看似健康的人群中存在准确性方面的局限性，以至于其对这类个体进行咨询的价值存疑。然而，在因胸痛接受检查的受试者中，运动心电图预测冠状动脉阻塞性疾病的准确性更高。此外，更严重的冠状动脉阻塞性疾病往往与低运动量时更明显异常的检查结果相关。低运动量时明显的ST段移位与更严重的阻塞性疾病之间的这种关联趋势，为胸痛患者或心肌梗死后患者的标准运动心电图增加了一定的预后价值。当已知心电图不具有特异性或运动量不足时，在运动心电图基础上增加同位素心脏成像或冠状动脉造影将是合适的。
