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目的探讨心电图活动平板运动试验(TET)及其联合64排螺旋CT冠脉成像(64 slice CTA)在诊断冠心病中的价值。方法选择256例胸痛、胸闷待查者于1个月内分别先后行TET、64 slice CTA与冠脉造影术(CAG),将结果进行对比分析。结果 TET的敏感性为74.1%(120/162),特异性为72.3%(68/94),预测准确性73.4%(188/256),阳性预测值为82.2%(120/146),阴性预测值为61.8%(68/110);与64 slice CTA联合检查的敏感性为87.7%(142/162),特异性为98.7%(93/94),准确度为91.8%(235/256),阳性预测值为99.3%(142/143),阴性预测值为82.3%(93/113)。结论对于疑冠心病患者可先行TET检查,结果不满意可加做64 slice CTA,两者联合诊断冠心病的价值更高。
Objective To investigate the value of treadmill exercise test (TET) combined with 64-slice spiral CT coronary angiography (CTA) in the diagnosis of coronary heart disease. Methods Twenty-six patients with chest pain and chest tightness were selected. TET, 64-slice CTA and coronary angiography (CAG) were performed within one month respectively. The results were compared and analyzed. Results The sensitivity of TET was 74.1% (120/162), the specificity was 72.3% (68/94), the accuracy of prediction was 73.4% (188/256), the positive predictive value was 82.2% (120/146). The negative predictive value With a sensitivity of 61.8% (68/110), a sensitivity of 87.7% (142/162), specificity of 98.7% (93/94), and accuracy of 91.8% (235/256) in combination with 64-slice CTA The positive predictive value was 99.3% (142/143) and the negative predictive value was 82.3% (93/113). Conclusions TET examination may be performed in patients with suspected coronary heart disease. If the results are unsatisfactory, 64-slice CTA may be added. The value of combined diagnosis of coronary heart disease is higher.