热带病与寄生虫学 ›› 2024, Vol. 22 ›› Issue (5): 306-310.doi: 10.20199/j.issn.1672-2302.2024.05.010

• 临床研究 • 上一篇    下一篇

不同实验室检测技术在肺结核诊断中的应用价值研究

杨静(), 陈叶昕, 夏广秀, 林雨虹, 李军, 徐东芳, 李跃, 丁运生, 包训迪()   

  1. 安徽省胸科医院(安徽省结核病防治研究所),安徽合肥230022
  • 收稿日期:2024-02-23 出版日期:2024-10-20 发布日期:2024-11-15
  • 通信作者: 包训迪, E-mail: baoxundi@163.com
  • 作者简介:杨静,女,学士,主管检验技师,研究方向:结核病实验室诊断。E-mail: 1319510981@qq.com
  • 基金资助:
    安徽省胸科医院(安徽省结核病防治研究所)科研计划项目(2020kj018B)

The application value of different laboratory detection technologies in the diagnosis of lung tuberculosis

YANG Jing(), CHEN Yexin, XIA Guangxiu, LIN Yuhong, LI Jun, XU Dongfang, LI Yue, DING Yunsheng, BAO Xundi()   

  1. Anhui Provincial Chest Hospital (Anhui Provincial Institute of Tuberculosis Control), Hefei 230022, Anhui Province, China
  • Received:2024-02-23 Online:2024-10-20 Published:2024-11-15
  • Contact: BAO Xundi, E-mail: baoxundi@163.com

摘要:

目的 分析不同实验室检测技术在肺结核诊断中的应用价值,为不同检测技术在临床诊治中的应用提供依据。方法 选择2023年1—8月在安徽省胸科医院就诊的疑似肺结核患者,采集痰标本进行抗酸染色涂片、分枝杆菌分离培养以及结核分枝杆菌DNA检测(TB-DNA)、RNA检测(TB-RNA)和GeneXpert MTB/RIF检测,采集血液标本进行结核感染T细胞斑点试验(TSPOT-TB)和结核分枝杆菌抗体(TB-Ab)检测。比较7种检测技术单独及联合检测的灵敏度、特异度、阳性预测值、阴性预测值和约登指数,绘制受试者工作特征曲线(receiver operating characteristic curve, ROC)并计算ROC下面积(area under the curve, AUC)。结果 共有191例疑似肺结核患者纳入本研究。7种检测技术单独应用时,TSPOT-TB检测技术的灵敏度(74.17%)、阴性预测值(63.95%)和约登指数(0.516 3)最高,GeneXpert MTB/RIF检测技术的特异度(100.00%)和阳性预测值(100.00%)最高。联合应用时,TSPOT-TB、TB-Ab联合检测的灵敏度最高(91.67%),TB-DNA、TB-RNA和GeneXpert MTB/RIF联合检测的特异度(94.37%)、阳性预测值(94.44%)、阴性预测值(94.37%)和约登指数(0.510 4)最高。单独应用时,TSPOT-TB检测技术的AUC最高(0.758),联合应用时,TB-DNA、TB-RNA和GeneXpert MTB/RIF联合检测的AUC最高(0.755)。结论 7种实验室检测技术在肺结核诊断中均有效,其中TSPOT-TB检测技术的特异度、灵敏度和约登指数均较高。临床上可根据自身情况单独或者联合使用以达到最佳检测效果。

关键词: 肺结核, 实验室检测, 灵敏度, 特异度

Abstract:

Objective To analyze the value of different laboratory test technologies in the diagnosis of pulmonary tuberculosis so as to provide a basis for application of different detection technologies in clinical diagnosis and treatment of this infection. Methods Suspected tuberculosis patients who received treatment at Anhui Provincial Chest Hospital from January to August 2023 were selected, sputum specimens were collected for acid-fast bacilli smear, isolation culture, Mycobacterium tuberculosis DNA (TB-DNA), RNA (TB-RNA) and GeneXpert MTB/RIF detection. Blood specimens were harvested for TSPOT-TB and TB-Ab detection. The sensitivity, specificity, positive predictive value, negative predictive value and Youden index of the seven technologies were compared, and receiver operating characteristic curve (ROC) was drawn to calculate the area under the curve (AUC). Results A total of 191 suspected tuberculosis patients were included in this study. The sensitivity (74.17%), negative predictive value (63.95%) and Youden index (0.516 3) of TSPOT-TB were the highest when the seven technologies were separately used, and the GeneXpert MTB/RIF assay had the highest specificity (100.00%) and positive predictive value (100.00%). Combined use of TSPOT-TB and TB-Ab led the highest sensitivity (91.67%), and the specificity (94.37%), positive predictive value (94.44%), negative predictive value (94.37%) and Youden index (0.510 4) were the highest when TB-DNA, TB-RNA and GeneXpert MTB/RIF were jointly detected. TSPOT-TB had the highest AUC (0.758) when used alone, TB-DNA, TB-RNA and GeneXpert MTB/RIF assays had the highest AUC (0.755) when used in combination. Conclusion All the 7 laboratory technologies are effective in the diagnosis of pulmonary tuberculosis, yet TSPOT-TB produces the highest specificity, sensitivity and Youden index. In clinical settings, either of the single test or combined tests can be optional to achieve the best detection effect.

Key words: Pulmonary tuberculosis, Laboratory detection, Sensitivity, Specificity

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