不同血细胞分析系统间检测结果的偏差评估及应用

目的 分析同一临床实验室不同型号的血细胞分析仪的性能特点，并对其检测结果进行评估，对有偏差的项目进行调整，使同一实验室不同型号的血细胞分析仪的检测结果具有可比性。方法 对本实验室所使用的Sysmex KX-21、Sysmex SE-9500和Beckman Coulter Ac．T 5diff三台血细胞分析仪的准确度、精密度、线性度分别进行评价，选定其中一台指标最优的仪器作为比对仪器，将另外两台仪器的血细胞参数进行调整。结果 因Sysmex KX-21的WBC、RBC、HGB及PLT四项指标的准确度、精密度、线性度均较理想，故选为比对仪器。Sysmex SE-6500和Beckman Coulter Ac．T 5diff有部分指标的部分评价项目与Svsmex KX-21有偏差。对有偏差的项目进行调整后，三台仪器的四项指标的相关系数的平方均不低于0．95。结论 同一实验室在使用不同型号的血细胞分析仪时，应对其进行相互校准。校准后，保证三台仪器的检测结果具有可比性。

The comparative study of three blood cell analyzers and its application

Objective To analyze the specificity of three different types of blood cell analyzers,and to adjust them in order to make them offer the conincident reports.Method The accuracy,precision and liner range of Sysmex KX-21,Sysmex SE-9500and Beckman Coulter Ac.T5diff were evaluated.The analyzer with best indices worked as a comparative one and the other two analyzer's parameter was adjusted according to it.Result The accuracy,precision and liner range of the following indices WBC,RBC,HGB and PLT of Sysmex KX-21were better than those of Sysmex SE-9500and Beckman Coulter Ac.T5diff,of which some indices had deviation.We selected Symex KX-21as the control one to correct the other two analyers,and the correlation coefficient squared of four indices with three analyzer was more than0.9725.Conclusion It is necessary to correct different types Blood Cell analyzers under the same laboratory conditions to improve their comparison.