T-SPOT TST和TB-AB在肺外结核诊断中的价值

目的：评价T-SPOT、TST和TB-AB在肺外结核诊断中的价值。方法对经细菌学和病理学确诊的21例肺外结核患者和外伤患者25例作为对照进行T-SPOT、TST和TB-AB的检测。结果 T-SPOT、TST和TB-AB在诊断肺外结核的敏感性分别为90.5%、76.2%和42.8%，特异性分别为96.0%、60.0%和64.0%。阳性预测值分别为95%、61.5%和50%，阴性预测值分别为92.3%、75.0%和57.1%。结论 T-SPOT比TST在诊断肺外结核具有更好的敏感性和特异性，TB-AB对肺外结核的诊断价值不大。

Objective Evaluation of T-SPOT,TST and TB-AB value in the diagnosis of extrapulmonary tuberculosis. Method Total 21 cases of extrapulmonary tuberculosis confirmed by histological or bacteriological and 25 cases from orthopedic trauma as control,T-SPOT、TST and TB-AB were performaced. Result The sensitivity of T-SPOT,TST and TB-AB for diagnosis of pulmonary tuberculosis were 90.5%,76.2%and 42.8%,the specificity were 96.0%,60.0%and 64.0%,the positive predictive value were 95%,61.5%and 50%,the negative predictive value were 92.3%,75.0%and 57.1%. Conclusion T-SPOT has the better sensitivity and specificity than TST for diagnosis of extrapulmonary,little diagnostic value of TB-AB for extrapulmonary tuberculosis.