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以心肌肌钙蛋白1放射免疫分析法（CTn－IRIA）测定急性心肌梗塞（AMI）35冽，非心肌梗塞（NMI）60例和正常健康人37例血清CTn－I的浓度，结果AMI组4．06±0．09ug／L（±s）明显高于后两组（P＜0．01），正常组为2．04±0．13ug／L，单侧95％可信上限界为3．35ug／L，以＞3.35ug/L为阳性.AMI组阳性率为94.3％，骨骼肌损伤18倒无1例阳性。提示CTn－I特异地存在于心肌中。按林氏推荐的公式[1]评价本方法对AMI的诊断价值阳性结果为90．41％，阴性结果为99.04％，准确率达92.15%,且CTn-I在AMI一周内为阳性。
Serum levels of CTn-1 in 35 patients with acute myocardial infarction (AMI), 60 with non-myocardial infarction (NMI) and 37 with normal controls were determined by radioimmunoassay (CTn-IRIA) .06 ± 0.09ug / L (± s) was significantly higher than the latter two groups (P <0.01), the normal group was 2.04 ± 0.13ug / L, unilateral 95% credible upper bound was 3. 35ug / L,> 3.35ug / L was positive.The positive rate of AMI group was 94.3%, skeletal muscle injury was not positive in 18 cases. Tip CTn-I is specifically present in the myocardium. According to the formula recommended by Lin [1], the diagnostic value of this method for AMI was 90.41%, the negative result was 99.04% and the accuracy rate was 92.15%. CTn-I was positive within one week of AMI.