检验医学 ›› 2012, Vol. 27 ›› Issue (1): 18-20.

• 临床检验与血液学检验论著 • 上一篇    下一篇

iQ200全自动尿沉渣分析仪在检测管型中的应用

  

  1. 第二军医大学附属长征医院实验诊断科,上海 200003
  • 出版日期:2012-01-20 发布日期:2012-01-20
  • 作者简介:樊笑霞,女,1969年生,学士,副主任技师,主要从事临床检验和实验室管理工作。

Application of iQ200 automated urinary sediment analyzer in detection of cast

  1. Department of Laboratory Diagnosis, Changzheng Hospital, Second Military Medical University, Shanghai 200003,China
  • Online:2012-01-20 Published:2012-01-20

摘要: 目的  探讨iQ200全自动尿沉渣分析仪(简称iQ200)在管型检测中的应用价值。方法  对76例iQ200检测显示管型阳性的标本进行屏幕图像的审核修改并记录结果,同时用手工显微镜法对76例标本进行管型鉴别和确认。结果  iQ200检测尿液管型阳性标本76例,人工通过屏幕图像信息,对管型阳性标本进行重新修饰和审核。修审后管型阳性标本为57例,手工显微镜法确认管型阳性标本为52例。以手工显微镜法为标准,iQ200未修审管型假阳性率为31.58%,图像审核后管型假阳性率为8.77%。结论  iQ200受检测原理和技术所限,以及尿液含有许多复杂成分的干扰,在管型检测中出现较高的假阳性率。为了给临床诊治提供可靠的检验结果,在遇到尿液检测显示管型阳性的标本,必须在仪器的图像信息中重新复审,而且对于图像异常难判别的结果,要以传统显微镜法对管型进行确认和分类检查。

关键词: 尿液沉渣分析仪, 管型, 显微镜, 图像

Abstract: Objective To investigate the application value of iQ200 automated urinary sediment analyzer in detection of cast.  Methods A total of 76 samples detected by iQ200 analyzer with cast positive result were amended by the image and were affirmed by manual microscopy. Results Among the 76 samples, 57 were positive after amendment, and 52 were positive after affirmation by manual microscopy. The false positive rate of the results detected by iQ200 analyzer before amendment was 31.58%, and then was 8.77% after amendment according to the results detected by manual microscopy.  Conclusions The false positive rate of iQ200 analyzer is high because of the limit of detection principle and technology and the interference by other components in urine. When cast is found in urine by iQ200 analyzer, the image information should be checked again, and the microscopy should be used for affirmation and classification. 

Key words: Urinary sediment analyzer, Cast, Microscope, Image