Sysmex KX-21血细胞分析仪复检规则的制定与评价

Establishment and Evaluation the Review Criteria for Sysmex KX21 Blood Cell analyzer

目的建立血细胞分析仪的复检规则,以求合理、有效地使用血细胞分析仪,同时为使用三分群血细胞分析仪的实验室复检标准的制定提供参考依据。方法根据医院及KX-21血细胞分析仪的特点,结合国际血液学复检专家组推荐的血细胞复检规则,制定血细胞显微镜复检标准。通过对1 700例标本血涂片进行显微镜检查,包括人工白细胞分类和细胞形态观察,评价仪器和手工检查结果的一致性以及规则的可行性。结果根据本复检规则和涂片镜检阳性评定标准对检测结果进行统计分析,复检率为33.76%(574/1 700),真阳性率为11.88%(202/1 700),假阳性率为21.88%(372/1 700),真阴性率为64.29%(1 093/1 700),假阴性率为1.94%(33/1 700),未漏检原幼细胞。结论国际血液学复检专家组推荐的血细胞复检规则对三分群血细胞分析仪复检规则的制定亦有指导意义。本研究制定的KX-21血细胞分析仪的复检规则符合本实验室特点。

Objective To find a proper way for accurate results of blood counts,and provide reference for the user of 3 cluster blood cell analyzer.Methods Based on the results of blood cell analyzer KX21 and International Consensus Review Rules,set up the criteria for blood cell microscopic examination,1700 blood specimen were detected and the results were analyzed according to the criteria..Statistics analysis were made to evaluate the accordance between warnings of analyzer and manual examination,likewise the reliability of the criteria.Results According to the review rules and slide riview positive criteria[1],the true positive ratio,the false positive ratio,the true negative ratio and the false negative ratio were 11.88%（202/1 700）,21.88%（372/1 700）,64.29% （1 093/1 700） and 1.94% （33/1 700） respectively..No blast cell and immature cell was missed.Conclusion The smear review criteria suggested by the International Consensus Group could facilitate to establish the review criteria for 3 cluster blood cell analyzer..The review rules used on KX21 blood cell analyzer in this study are suitable for our laboratory.