Lear J L
Radiology. 1985 Sep;156(3):835-6. doi: 10.1148/radiology.156.3.4023255.
Although thallium 201 stress testing is usually performed on a treadmill (Tl-TM), supine bicycle-ergometer-exercise thallium 201 testing (Tl-SB) has been reported. We performed a study to evaluate the accuracy of Tl-SB in evaluation of coronary artery disease and to correlate its results with those of Tl-TM. Fifty patients underwent both Tl-SB and Tl-TM testing in random sequence an average of 1 week apart. Tl-TM produced significantly higher maximal pulse rates and pulse-pressure products. Cardiac thallium kinetics differed significantly between Tl-SB and Tl-TM with Tl-TM producing greater initial myocardial uptake and greater thallium 201 washout between immediate and delayed images. Compared with results of catheterization, Tl-TM was significantly more accurate than Tl-SB for evaluation of coronary artery disease, with higher sensitivity and specificity.
尽管铊 201 负荷试验通常在跑步机上进行（Tl-TM），但已有报道称可进行仰卧位自行车测力计运动铊 201 试验（Tl-SB）。我们进行了一项研究，以评估 Tl-SB 在评估冠状动脉疾病中的准确性，并将其结果与 Tl-TM 的结果进行关联。50 名患者以随机顺序平均间隔 1 周分别接受了 Tl-SB 和 Tl-TM 试验。Tl-TM 产生的最大脉率和脉压乘积显著更高。Tl-SB 和 Tl-TM 之间的心肌铊动力学有显著差异，Tl-TM 在即时和延迟图像之间产生更大的初始心肌摄取和更大的铊 201 洗脱。与导管插入术的结果相比，在评估冠状动脉疾病方面，Tl-TM 比 Tl-SB 显著更准确，具有更高的敏感性和特异性。
