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美国波士顿马萨诸塞总医院的John B Gill等人研究铊图象预测心脏病的发作情况,并对临床与运动试验的变量值进行了比较。研究对象是于1979年进行铊运动试验的525名病人,期限为5年。对其中467名病人(89％)进行了随访。在105次心脏病发作中,发生25次心脏性死亡。有33次心肌感染,作了47次冠状动脉搭桥术。柯克斯(Cox)存活率分析证明,肺吸收铊量增加(运动时左心室功能障碍的标志)是冠心病发作的最佳预测因素(相对危险率=
John B Gill et al., Massachusetts General Hospital, Boston, USA, studied thallium images to predict the onset of heart disease and compared variables in clinical and exercise trials. The study was conducted in 1979, 525 patients with thallium exercise test, a period of 5 years. 467 of them (89%) were followed up. In 105 heart attacks, 25 cardiac deaths occurred. There were 33 myocardial infections, made 47 coronary artery bypass grafting. Analysis of Cox survival rates demonstrated that increased lung uptake of thallium (a marker of left ventricular dysfunction during exercise) was the best predictor of coronary heart disease (relative risk =