检验医学 ›› 2019, Vol. 34 ›› Issue (3): 253-258.DOI: 10.3969/j.issn.1673-8640.2019.03.015

• 技术研究与评价·论著 • 上一篇    下一篇

3种检测系统常规血液凝固试验结果一致性比较

王悦1, 屈晨雪2, 龚岩2, 高学硕1, 王国洪1, 徐国宾1   

  1. 1. 北京大学肿瘤医院暨北京市肿瘤防治研究所检验科 恶性肿瘤发病机制及转化研究教育部重点实验室 北京 100142
    2. 北京大学第一医院检验科,北京 100034
  • 收稿日期:2018-08-01 出版日期:2019-03-30 发布日期:2019-03-27
  • 作者简介:null

    作者简介:王 悦,女,1974年生,主管技师,主要从事血液学检测工作。

Comparison of the results' consistency of 3 automated coagulation analyzers for coagulation items

WANG Yue1, QU Chenxue2, GONG Yan2, GAO Xueshuo1, WANG Guohong1, XU Guobin1   

  1. 1. Department of Clinical Laboratory,Key Laboratory of Carcinogenesis and Translational Research,Ministry of Education,Peking University Cancer Hospital and Institute,Beijing 100142,China
    2. Department of Clinical Laboratory,the First Hospital of Peking University,Beijing 100034,China
  • Received:2018-08-01 Online:2019-03-30 Published:2019-03-27

摘要:

目的 比较3种系统测定凝血酶原时间(PT)、国际标准化比值(PT-INR)、活化部分凝血活酶时间(APTT)、纤维蛋白原(Fib)、凝血酶时间(TT)、D-二聚体(DD)、纤维蛋白(原)降解产物(FDP)结果的一致性,并观察质控物的基质效应。方法 选取不同水平患者样本100份,采用CA7000血液凝固分析仪、Top700血液凝固分析仪、CP2000血液凝固分析仪(分别简称CA7000、TOP700、CP2000)同时检测PT、PT-INR、APTT、Fib、TT、DD、FDP,采用线性回归分析评价不同系统检测患者样本结果的相关性,计算两两系统间相对偏差。选取18种不同来源质控物在3种检测系统上同时检测PT、Fib、DD,评价质控物互换性。结果 不同系统检测患者样本PT、PT-INR、Fib结果有良好的相关性(r2为0.91~0.99),两两系统间偏差分别<15%、15%、20%;3种系统检测DD的结果显著相关(r2≥0.90),CA7000、CP2000检测DD一致性好,但Top700测定结果显著低于CA7000、CP2000;不同系统检测患者样本APTT、TT结果有中度相关性(r2为0.56~0.76),且三者间测定结果有系统偏差。3种系统均采用同一品牌试剂盒及配套校准品检测FDP,系统间FDP检测结果有良好相关性(r2>0.99)。不同系统检测DD结果相关性良好(r2 为0.92~0.99),但两两系统间测定结果偏差显著。18种质控物PT、Fib、DD的检测结果在3种检测系统间均无互换性。结论 不同检测系统血液凝固试验检测结果一致可比程度不同,血凝质控物基质效应显著,使其在不同系统上检测结果偏差大于患者样本的检测结果。

关键词: 血液凝固试验, 相关性, 质控品, 基质效应

Abstract:

Objective To investigate the consistency of 3 automated coagulation analyzers for coagulation items [prothrombin time(PT),international normalized ratio(INR),activated partial thromboplastin time(APTT),fibrinogen(Fib),thrombin time(TT),D-dimer(DD)and fibrin/fibrinogen degradation product(FDP)] and the matrix effects of quality control materials. Methods A total of 100 samples were collected. Totally,PT,PT-INR,APTT,Fib,TT,DD and FDP were determined by 3 automated coagulation analyzers,including CA7000,Top700 and CP2000. Linear regression analysis was used to analyze the correlation of results. The relative deviation between any 2 analyzers was calculated. The matrix effect of 18 quality control materials for PT,Fib and DD was assessed with regression. Results There were good correlations among the 3 automated coagulation analyzers for PT,PT-INR and Fib (r2=0.91-0.99). The deviations between any 2 analyzers were <15%,15% and 20%. The results of DD among the 3 automated coagulation analyzers had correlations (r2≥0.90),CA7000 and CP2000 had good consistency,but the results of Top700 were lower than those of CA7000 and CP2000. Moderate correlations were observed for APTT and TT(r2=0.56-0.76). Medical kits for FDP and matched calibrators were adopted to the 3 analyzers. There was a high correlation for FDP and DD (r2>0.99,r2=0.92-0.99),and there was difference between any 2 analyzers. There was no compatibility for PT,Fib and DD on the 3 analyzers in 18 quality control materials. Conclusions The consistency of the results of the 3 automated coagulation analyzers is diverse. The matrix effects should be considered,which makes the deviation of quality control materials greater than that of patient.

Key words: Coagulation test, Correlation, Quality control material, Matrix effect

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