CCLM:ImmunoCAP®ISAC 112的性能评估

2017-05-21 MedSci MedSci原创

在市场上重新引入ImmunoCAP®ISAC sIgE 112后,研究人员进行了一项研究,以评估该多重免疫测定对过敏原成分的IgE测量的性能。

近日,国际杂志Clinical Chemistry and Laboratory Medicine在线发表一项关于ImmunoCAP?ISAC 112的性能评估多位点的研究。

在市场上重新引入ImmunoCAP®ISAC sIgE 112后,研究人员进行了一项研究,以评估该多重免疫测定对过敏原成分的IgE测量的性能。

本研究分别在南非的1个地点和欧洲的22个地点进行。将不同批次的微阵列,八个特异性IgE(sIgE)阳性血清样本,三个sIgE阴性血清样品和校准样品发送到参比实验室,并根据制造商的说明进行测定。

阴性和阳性样本的结果在试验点之间是一致的,具有非常低的假阳性率(0.014%)。在23个试验点观察到每个样品的结果模式相似。对于每个样品的所有测量的均匀性分析是很好的聚类,表明良好的重复性;通过随机森林进行无监督的层次聚类和分类,显示了独立于测定位点的相同样品的聚类。原始连续数据分析证实了试验点的精确度;平均标准化,特定试验点的ISU-E值接近所有站点测量分布的中心。对异常值过滤后,整个研究的变异性估计为25.5%,并且“低”,“中等至高”和“非常高”浓度的变异性分别对应为为22%,27.1%和22.4%。

该研究显示了在不同试验点的ImmunoCAP®ISAC 112免疫测定的强大性能。对于不同的化验位点,实验室特异性条件和仪器,操作者或使用不同批次的微阵列,均获得了相同的结果。

原始出处:

Marianne van Hage, Peter Schmid-Grendelmeier. et.al. Performance evaluation of ImmunoCAP® ISAC 112: a multi-site study.

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    2018-02-23 smlt2008
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