摘要
目的评价Sysmex XE-2100血细胞分析仪检测外周血标本,出现有核红细胞(nucleated red blood cell,NRBC)报警的阳性预期值、阴性预期值以及提示信息Q-flag值在一定区间内的特异性、敏感性。方法选择103例Sysmex XE-2100出现NRBC报警(100≤Q-flag值≤300)的标本,以及未出现报警(Q-flag值<100)的标本105例,用手工推片,瑞氏染色显微镜镜检作为金标准复检。结果 NRBC提示信息在(100≤Q-flag值≤200)区间的阳性预期值为48%,在(200<Q-flag值≤300)区间的阳性预期值为81%,在(Q-flag值≥100)区间的阳性预期值为60%,在(Q-flag值<100)区间的阴性预期值为86%。结论 Sysmex XE-2100血细胞分析仪NRBC报警具有较高的敏感性和特异性,但存在一定的干扰因素,报警的阳性预期值与Q-flag值所处区间有关。
Objective To evaluate nucleated red blood cell screening using the Sysmex XE -2100 blood cell analyzer. To analyze positive expected value and negative expected value about the alarm of nucleated red blood cells. And to evaluate the sensitivity and specificity of Q - flag result in a certain range. Methods With manual microscopic examination as the gold standard to recheck 103 cases of Sysmex XE - 2100 NRBC alarm （ 100 ≤ Q - flag ≤300 ） samples and 105 cases of no alarm （ Q - flag 〈 100 ） samples. Results When 100 ≤Q - flag≤ 200,1 the positive expected value was 48%. When 200 〈 Q - flag≤ 300, the positive expected value was 8%. When Q -flag≥100, the positive expected value was 60%. When Q -flag 〈 100, the negative expected value was 86%. Conclusions Sysmex XE-2100 blood cell analyzer NRBC alarm has high sensitivity and specificity, but there are some interfering factors. The positive expected value of the alarm is associated with the interval about Q - flag value.
出处
《武警医学》
CAS
2013年第7期591-592,596,共3页
Medical Journal of the Chinese People's Armed Police Force
关键词
外周血
有核红细胞
血细胞分析仪
显微镜镜检
peripheral blood
nucleated red blood cells
blood cell analyzer
microscopic examination
