检验医学 ›› 2025, Vol. 40 ›› Issue (9): 897-900.DOI: 10.3969/j.issn.1673-8640.2025.09.012

• 论著 • 上一篇    下一篇

MicroR在指导血小板计数复检中的应用

陈文丽1, 金成2, 周露露3, 徐卫益3()   

  1. 1.杭州市余杭区第三人民医院检验科,浙江 杭州 311115
    2.山东协和学院医学院,山东 济南 250000
    3.浙江大学医学院附属第一医院检验科,浙江 杭州 310003
  • 收稿日期:2024-06-12 修回日期:2025-02-03 出版日期:2025-09-30 发布日期:2025-09-30
  • 通讯作者: 徐卫益
  • 作者简介:徐卫益,E-mail:xwy021017@163.com
    陈文丽,女,1985年生,主管技师,主要从事临床检验工作。

Role of MicroR in guiding platelet count re-examination

CHEN Wenli1, JIN Cheng2, ZHOU Lulu3, XU Weiyi3()   

  1. 1. Department of Clinical Laboratory,Yuhang District Third People's Hospital,Hangzhou 311115,Zhejiang,China
    2. Medical College of Shandong Union College,Jinan 250000,Shandong,China
    3. Department of Clinical Laboratory,the First Affiliated Hospital of Zhejiang University School of Medicine,Hangzhou 310003,Zhejiang,China
  • Received:2024-06-12 Revised:2025-02-03 Online:2025-09-30 Published:2025-09-30
  • Contact: XU Weiyi

摘要:

目的 分析基于MicroR、红细胞平均体积(MCV)和红细胞体积分布宽度(RDW)制定的全自动血液分析仪血小板(PLT)计数复检规则的应用效果。方法 收集2023年6月—2024年3月浙江大学医学院附属第一医院526例门诊患者的血液标本(实验组)和68名健康体检者血液标本(对照组)。另收集同期浙江大学医学院附属第一医院161例门诊患者的血液标本为复检规则验证阳性标本,70名健康体检者血液标本为复检规则验证阴性标本。采用XN-20血液分析仪PLT-F模式测定血常规各项指标,比较实验组和对照组检测结果差异。采用受试者工作特征(ROC)曲线评价MCV、RDW、MicroR指导PLT复检的效能。用复检规则验证样本对制定的MicroR复检规则进行验证。结果 实验组和对照组白细胞计数、血红蛋白(Hb)、MCV、RDW、PLT计数和MicroR差异有统计学意义(P<0.05);红细胞计数、平均PLT体积、大PLT比率差异无统计学意义(P>0.05)。MicroR、MCV和RDW指导PLT复检的曲线下面积分别为0.716、0.720、0.474,敏感性分别为80.0%、72.9%、16.0%,特异性分别为52.7%、62.1%、72.4%。当MicroR≥16.5%时,PLT计数复检的真阳性率、真阴性率、假阳性率、假阴性率分别为93%、52%、48%、7%。结论 MicroR指导PLT复检的效能与MCV相当,但明显优于RDW。建议临床实验室日常工作中设置MicroR≥16.5%复检规则来代替MCV<75 fL和RDW>22%规则。

关键词: 血小板计数, 复检, 血液分析仪, 荧光血小板通道

Abstract:

Objective To analyze the role of the re-examination rule for platelet(PLT)count based on MicroR,mean corpuscular volume(MCV)and red blood cell distribution width(RDW)developed by fully automatic hematology analyzer. Methods Blood samples from 526 outpatients at the First Affiliated Hospital of Zhejiang University School of Medicine(experimental group)and 68 healthy subjects(control group)were collected from June 2023 to March 2024. Additionally,161 samples from patients at the First Affiliated Hospital of Zhejiang University School of Medicine in the same period were collected as re-examination positive verification samples for the rule,and 70 samples from healthy subjects were collected as re-examination negative verification samples. The XN-20 hematology analyzer was used in PLT-F mode to determine various blood routine indicators. The differences in the determination results between the 2 groups were compared. Receiver operating characteristic(ROC)curve was used to evaluate the efficacy of MCV,RDW and MicroR in guiding PLT re-examination. The MicroR re-examination rule was verified using the re-examination verification samples. Results There was statistical significance in white blood cell count,hemoglobin(Hb),MCV,RDW,PLT count and MicroR between experimental group and control group(P<0.05),while there was no statistical significance in red blood cell count,mean PLT volume and PLT-larger cell ratio(P>0.05). The areas under curves for MicroR,MCV and RDW in guiding PLT count re-examination were 0.716,0.720 and 0.474,respectively. The sensitivities were 80.0%,72.9% and 16.0%,respectively,and the specificities were 52.7%,62.1% and 72.4%,respectively. When MicroR≥16.5%,the true positive rate,true negative rate,false positive rate and false negative rate of PLT re-examination were 93%,52%,48% and 7%,respectively. Conclusions The ability of MicroR to guide PLT count re-examination is comparable to that of MCV but significantly better than that of RDW. It is recommended that clinical laboratories set the MicroR≥16.5% re-examination rule in daily work to replace the MCV<75 fL and RDW>22% rules.

Key words: Platelet count, Re-examination, Hematology analyzer, Fluorescent platelet channel

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