目的 对Sysmex XE-2100血细胞分析仪白细胞分类计数进行性能评价.方法 从不精密度、可比性、临床诊断敏感性这三个方面对Sysmex XE-2100血细胞分析仪白细胞分类计数进行评价.结果 该仪器的批内、短期和长期不精密度分别在0.91％～15.53％之间.白细胞分类计数仪器法与人工显微镜法比较,中性粒细胞、淋巴细胞、单核细胞、嗜酸性粒细胞、嗜碱性粒细胞的相关系数(,)分别是0.956 4,0.941 8,0.700 7,0.931 3和0.811 1.200份临床病例类型与仪器白细胞分类结果比较,各类白细胞的临床符合率分别在5％～100％之间.结论 Sysmex XE-2100血细胞分析仪白细胞分类计数具有较高精密度及临床诊断敏感度,与人工显微镜分类有较好的相关性等特点,它可作为一种过筛手段进行初检.%Objective To evaluate the performance of leukocyte differential count with Sysmex XE-2100 automated hematology analyzer. Methods According to H20-A standard approved by National Committee for Clinical Laboratory Standards (NCCLS/CLSI),the performance of leucocyte differential count was evaluated from imprecision, comparability and clinical determination of sensitivity. Results The within-run, short-term and long-term imprecision of the instrument were between 0. 91 %～15. 53%. Compared with the manual microscopy classification, the correlation coefficient( r2 ) of neutrophil, lymphocyte, monocyte,eosinophil and basophil were 0. 956 4,0. 941 8,0. 700 7,0. 931 3 and 0. 811 1 respectively. The clinical determination of sensitivity to finding of abnormal samples were between 50%～100% in 200 clinical cases. Conclusion Sysmex XE-2100 automated hematology analyzer had good clinical determination of sensitivity,low imprecision and fine correlation with manual microscopy classification. It is suitable for the initial screening of clinical diseases.
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