检验医学 ›› 2019, Vol. 34 ›› Issue (9): 855-858.DOI: 10.3969/j.issn.1673-8640.2019.09.020

• 实验室管理?论著 • 上一篇    下一篇

血栓弹力图室间质量评价方法初探

王青, 乔郑磊, 宋颖   

  1. 上海市临床检验中心,上海 200126
  • 收稿日期:2018-11-10 出版日期:2019-09-30 发布日期:2019-09-29
  • 作者简介:null

    作者简介:王 青,男,1968年生,学士,主任技师,主要从事血液体液检验和实验室质量管理工作。

Preliminary study on external quality assessment method of thromboelastography

WANG Qing, QIAO Zhenglei, SONG Ying   

  1. Shanghai Center for Clinical Laboratory,Shanghai 200126,China
  • Received:2018-11-10 Online:2019-09-30 Published:2019-09-29

摘要:

目的 探讨适宜的血栓弹力图(TEG)室间质量评价(EQA)方法。方法 用传统统计方法中位数(M)±1.96倍四分位间距(IQR)、M±2.58IQR,99.73%置信区间(k=3)的合成变异系数(SCV)和基于当前技术水平的允许总误差(TEa)评价上海市2016—2018年5次EQA计划中16个TEG调查样本的反应时间(R)、血凝块形成速率系数(K)、最大曲线弧度切线与水平线的夹角(ANG)和最大振幅(MA),比较不同方法评价结果的合格率。结果 M±1.96 IQRM±2.58 IQR、3SCV和TEa80 4种方法评价TEG R的合格率分别为86.36%~98.39%、86.36%~98.44%、56.45%~97.62%和80.65%~100.00%;K的合格率分别为86.36%~98.39%、86.36%~100.00%、50.00%~98.39%和75.81%~100.00%;ANG的合格率分别为86.36%~98.39%、86.36%~100.00%、29.03%~100.00%和80.65%~100.00%;MA的合格率分别为81.82%~97.62%、86.36%~100.00%、51.56%~90.48%和81.82%~100.00%。结论 以基于当前技术水平的TEa80方法(R为M±33.28%,K为M±38.24%,ANG为M±30.77%,MA为M±26.45%)作为上海市TEG EQA标准比较适合,可以用于分析当前上海地区TEG检测质量。

关键词: 血栓弹力图, 室间质量评价, 允许误差范围

Abstract:

Objective To investigate an appropriate external quality assessment(EQA) method for thromboelastography(TEG). Methods The response time(R),clot kinetics(K),angle(ANG) and maximum amplitude(MA) of 16 samples in 5 EQA plans from 2016 to 2018 in Shanghai were analyzed and evaluated by medium(M)±1.96 inter quartile range(IQR),M±2.58 IQR,synthetic coefficient of variation(SCV) and allowable total error(TEa) based on current technical level. The qualified rates of assessment results were compared. Results The qualified rates of R,K,ANG and MA obtained from traditional statistical methods such as M±1.96 IQR,M±2.58 IQR,3SCV and TEa80 were listed as R:86.36%-98.39%,86.36%-98.44%,56.45%-97.62% and 80.65%-100.00%;K:86.36%-98.39%,86.36%-100.00%,50.00%-98.39% and 75.81%-100.00%;ANG:86.36%-98.39%,86.36%-100.00%,29.03%-100.00% and 80.65%~100.00%;MA:81.82%-97.62%,86.36%-100.00%,51.56%-90.48% and 81.82%-100.00%. Conclusions TEa80(R:M±33.28%,K:M±38.24%,ANG:M±30.77% and MA:M±26.45%) is suitable for the evaluation of TEG EQA quality in Shanghai,which could satisfy the current analysis level of TEG determination in Shanghai.

Key words: Thromboelastography, External quality assessment, Allowable error range

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