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运动心电图是诊断冠心病最常用的方法,但是ST段压低的敏感性和特异性较低,晚近提出多种纠正法以期提高其诊断价值.本文比较新近提出的四种心电图分析法和常规分析法的准确性,并以运动铊闪烁显象为对照.方法:研究对象为303例可疑冠心病而行冠状动脉(CA)造影的病人,均无心肌梗塞史或其心电图表现.在CA造影后24小时内进行活动平板试验,并在运动结束前开始铊显象检查.确定PR段中点和J点后80ms处ST段,两点之间的垂直距离用4倍放大镜测得,精确度近0.1mm(0.01mv),取3～5
Exercise ECG is the most commonly used method to diagnose coronary heart disease, but the sensitivity and specificity of ST depression is low, and recently proposed a variety of correction method in order to improve its diagnostic value.In this paper, four newly proposed electrocardiogram analysis and routine analysis Of the patients with thalidomide.Methods: The subjects of our study were 303 patients with suspected coronary heart disease who underwent coronary angiography (CA) without history of myocardial infarction or their electrocardiogram.After 24 weeks of CA angiography Activities of flat-panel test within hours, and began before the end of exercise thallium imaging examination to determine the midpoint of the PR segment and J point 80ms after the ST segment, the vertical distance between two points measured with a 4 magnifying glass, the accuracy of nearly 0.1 mm (0.01mv), take 3 ~ 5