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目的探讨静息~(99)Tc~m-甲氧基异丁基异腈核素心肌灌注显像(ECT)在心肌病早期诊断中的临床价值。方法对100例可疑心肌病早期患者行ECT检查,动态随访2~3年,对ECT的诊断结果进行评价及对比分析。结果静息ECT对早期心肌病诊断的灵敏度为94.0%,特异度为45.5%,准确率为78.0%,阳性预测值为77.8%,阴性预测值为78.9%,阳性似然比为1.72,阴性似然比为0.13。结论心脏ECT可作为早期心肌病的诊断方法。
Objective To investigate the clinical value of resting ~ (99) Tc ~ m-methoxyisobutylisononitrile myocardial perfusion imaging (ECT) in the early diagnosis of cardiomyopathy. Methods 100 patients with suspected cardiomyopathy in early ECT examination, dynamic follow-up of 2 to 3 years, the diagnosis of ECT were evaluated and compared. Results The sensitivity of resting ECT to early cardiomyopathy was 94.0%, specificity was 45.5%, accuracy was 78.0%, positive predictive value was 77.8%, negative predictive value was 78.9%, positive likelihood ratio was 1.72, negative However, the ratio is 0.13. Conclusions Cardiac ECT can be used as a diagnostic method for early cardiomyopathy.