检验医学 ›› 2013, Vol. 28 ›› Issue (4): 290-292.DOI: 10.3969/j.issn.1673-8640.2013.04.009

• 技术研究与评价.论著 • 上一篇    下一篇

Sysmex UF-1000i尿有形成分分析仪对尿液真菌筛查的临床应用评价

丁志祥,蒋银芬,周伊兰,金文涛,钱高潮   

  1. 南京中医药大学附属常州市中医医院检验科,江苏 常州 213003
  • 收稿日期:2012-05-15 修回日期:2012-07-09 出版日期:2013-04-30 发布日期:2013-04-05
  • 通讯作者: 钱高潮,联系电话:0519-89896746。
  • 作者简介:丁志祥,男,1980年生,硕士,主管技师,主要从事临床检验相关研究。

Evaluation on the clinical application of Sysmex UF-1000i urine formed element analyzer for screening funguria

  1. Department of Clinical Laboratory,Changzhou Traditional Chinese Medicine Hospital,Nanjing Traditional Chinese Medicine University,Jiangsu Changzhou 213003,China
  • Received:2012-05-15 Revised:2012-07-09 Online:2013-04-30 Published:2013-04-05

摘要: 目的 评价Sysmex UF-1000i尿有形成分分析仪(简称UF-1000i)在真菌尿筛查中的临床应用价值。 方法 分别测定UF-1000i检测白念珠菌的精密度、线性范围和携带污染率。选择UF-1000i提示类酵母细胞(YLC)阳性样本200例,阴性样本400例,同时做显微镜检查。 结果 UF-1000i检测白念珠菌的精密度为3.83%~4.71%,线性范围为10.0~5 873.1个/μL,线性相关系数(r)为0.999,携带污染率为0.12%。以显微镜检查为金标准,受试者工作特征(ROC)曲线结果显示UF-1000i检测真菌YLC的最佳临界值为18.05个/μL,其检测真菌的敏感性、特异性、准确度、阳性预测值和阴性预测值分别为97.0%、85.6%、87.5%、57.4%和99.3%。 结论 UF-1000i可快速提供真菌孢子定量检测结果,辅助诊断尿路真菌感染。

关键词: 真菌尿, Sysmex UF-1000i尿有形成分分析仪, 显微镜检查

Abstract: Objective To evaluate the clinical application significance of Sysmex UF-1000i urine formed element analyzer (UF-1000i analyzer) for screening funguria.   Methods The precision,linear range and carryover rate of Candida albicans were detected by UF-1000i analyzer. A total of 200 urine samples which UF-1000i analyzer showed like yeast cell(YLC) positive and 400 YLC negative urine samples were detected by manual microscopy. Results For UF-1000i analyzer detecting Candida albicans,the precision was 3.83%- 4.71%,the linear range was 10.0-5 873.1 cells/μL,the correlation coefficient was 0.999, and the carryover rate was 0.12%. Manual microscopy was as the gold standard,and the result of receiver operating characteristic (ROC) curve showed the best cut-off value for UF-1000i analyzer detecting YLC was 18.05 cells/μL. The sensitivity,specificity,accuracy,positive predictive value and negative predictive value of UF-1000i analyzer in the diagnosis of funguria were 97.0%,85.6%,87.5%,57.4% and 99.3%,respectively. Conclusions UF-1000i analyzer can provide quantitative results of fungal spores. It aids to diagnose urinary tract fungal infection.

Key words: Funguria, Sysmex UF-1000i urine formed element analyzer, Microscopy