检验医学 ›› 2017, Vol. 32 ›› Issue (7): 633-636.DOI: 10.3969/j.issn.1673-8640.2017.07.018

• 技术研究与评价_论著 • 上一篇    下一篇

全自动新生儿疾病筛查系统的性能评价

田国力, 王燕敏, 周卓, 郭静, 许洪平, 姚静   

  1. 上海市儿童医院新生儿筛查中心,上海 200040
  • 收稿日期:2016-10-27 出版日期:2017-08-08 发布日期:2017-08-09
  • 作者简介:null

    作者简介:田国力,女,1968年生,硕士,主任技师,主要从事新生儿遗传代谢病筛查工作。

  • 基金资助:
    基金项目:上海市第四轮公共卫生三年行动计划重点学科建设项目(15GWZK0401);上海交通大学多学科交叉项目(YG2015QN27)

Performance evaluation of automatic genetic screening processor for neonatal screening

TIAN Guoli, WANG Yanmin, ZHOU Zhuo, GUO Jing, XU Hongping, YAO Jing   

  1. Neonatal Screening Center,Children's Hospital of Shanghai,Shanghai 200040,China
  • Received:2016-10-27 Online:2017-08-08 Published:2017-08-09

摘要:

目的 对全自动新生儿疾病筛查系统(GSP)进行性能评价。方法 按照美国临床实验室标准化协会(CLSI) EP15-A2文件的要求,对新生儿先天性甲状腺功能低下症(CH)、先天性肾上腺皮质增生症(CAH)、苯丙酮尿症(PKU)和葡萄糖6磷酸脱氢酶(G6PD)缺乏症4种疾病筛查的对应检测指标——促甲状腺素(TSH)、17-羟基孕酮(17-OHP)、苯丙氨酸(Phe)和G6PD进行检测,评价GSP的精密度、正确度、线性范围等,并与目前临床常规使用的荧光酶免疫分析法(TSH、17-OHP)和荧光法(Phe、G6PD)进行比对。结果 GSP检测TSH、17-OHP、Phe、G6PD批内不精密度和总不精密度均在厂商要求的范围内;与美国疾病预防控制中心(CDC)新生儿筛查室间质评样本靶值的偏移为-8.37%~12.96%,均<1/2允许总误差(TEa)。线性回归方程的截距b为0.83~1.69,r2>0.95,达到厂商声明的线性要求(r2≥0.90)。GSP与荧光酶免疫分析法和荧光法的一致性非常好(Kappa值分别为0.83、0.73、0.93和0.97,P<0.001),检测结果高度相关(r值分别为0.97、0.94、0.99、0.91,P<0.001)。结论 GSP的精密度、正确度、线性范围均达到了厂家声明的检测性能,可用于临床检测。

关键词: 全自动新生儿疾病筛查系统, 促甲状腺素, 苯丙氨酸, 17-羟基孕酮, 葡萄糖6磷酸脱氢酶

Abstract:

Objective To evaluate the performance of automatic genetic screening processor(GSP)for neonatal screening. Methods According to the Clinical and Laboratory Standards Institute (CLSI)EP15-A2 document,thyroid stimulating hormone(TSH),17-OH-progesterone(17-OHP),phenylalanine(Phe) and glucose-6-phosphate dehydrogenase(G6PD) were determined in neonatal screening for congenital hypothyroidism(CH),congenital adrenal hyperplasia(CAH),phenylketonuria(PKU) and G6PD deficiency. The precisions,accuracies and linear ranges of 4 indices were verified. The results were compared with common methods (fluorescence enzyme immunoassay for TSH and 17-OHP and fluorescence assay for Phe and G6PD). Results The within-run imprecision and total imprecision were acceptable,and were similar to those published by manufacturers. The biases were <1/2 allowable total error (TEa) from -8.37% to 12.96%,comparing with the neonatal screening quality assurance program of the U. S. Centers for Disease Control and Prevention(CDC). The b of linear regression equation was 0.83-1.69,and r2 was >0.95,which was above the manufacturers declared(r2≥0.90). The results between GSP and the common methods had good consistency (Kappavalues were 0.83,0.73,0.93 and 0.97,P<0.001)and high correlation(r =0.97,0.94,0.99 and 0.91,P<0.001). Conclusions The precision,accuracy and linear range of GSP have been achieved the performance of manufacturers' declaration and could be used for neonatal screening.

Key words: Automatic genetic screening processor, Thyroid stimulating hormone, Phenylalanine, 17-OH-progesterone, Glucose-6-phosphate dehydrogenase

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