检验医学
檢驗醫學
검험의학
LABORATORY MEDICINE
2014年
1期
81-85
,共5页
测量不确定度%偏移%不精密度%室内质量控制%室间质量评价
測量不確定度%偏移%不精密度%室內質量控製%室間質量評價
측량불학정도%편이%불정밀도%실내질량공제%실간질량평개
Uncertainty measurement%Bias%Imprecision%Internal quality control%External quality assessment
测量不确定度是保证测量结果完整性的重要参数,自上而下方法是从不精密度和偏移两个方面评定医学实验室不确定度的首选方法。自1995年该方法提出后,不确定度的评定对象和计算方法在不断地发展和完善,目前不精密度评定对象包括重复测量数据和室内质量控制数据,偏移的评定对象可包含有证参考物质、参考测量程序、回收实验和室间质量评价数据,我们将对不同评定对象的计算方法进行详述。
測量不確定度是保證測量結果完整性的重要參數,自上而下方法是從不精密度和偏移兩箇方麵評定醫學實驗室不確定度的首選方法。自1995年該方法提齣後,不確定度的評定對象和計算方法在不斷地髮展和完善,目前不精密度評定對象包括重複測量數據和室內質量控製數據,偏移的評定對象可包含有證參攷物質、參攷測量程序、迴收實驗和室間質量評價數據,我們將對不同評定對象的計算方法進行詳述。
측량불학정도시보증측량결과완정성적중요삼수,자상이하방법시종불정밀도화편이량개방면평정의학실험실불학정도적수선방법。자1995년해방법제출후,불학정도적평정대상화계산방법재불단지발전화완선,목전불정밀도평정대상포괄중복측량수거화실내질량공제수거,편이적평정대상가포함유증삼고물질、삼고측량정서、회수실험화실간질량평개수거,아문장대불동평정대상적계산방법진행상술。
The measurement of uncertainty is an important parameter which ensures the integrity of measurement results.Top-down approach is a prior choice to evaluate uncertainty in medical laboratories with imprecision and bias. Since 1 995 ,when top-down approach was firstly introduced,the evaluation objects and calculating methods have been developed and improved continuously.At present,imprecision can be determined by replicate measurements and internal quality control data,while bias can be assessed by certified reference materials,reference methods,recovery tests and external quality assessment data.The methods of evaluating measurement uncertainty will be focused according to different objects in this review.