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자동화학분석기 Atellica CH 930 Analyzer의 성능 평가

Other Titles
 Evaluation of the Analytical Performance of Atellica CH 930 Automated Chemistry Analyzer 
 김대원  ;  조용근  ;  조주영  ;  김선희  ;  이상국  ;  김정호 
 Laboratory Medicine Online, Vol.9(3) : 133-145, 2019 
Journal Title
Laboratory Medicine Online
Issue Date
Atellica CH 930 Analyzer ; Performance evaluation ; Automated QC function
Background: Recently, a new automated chemistry analyzer, Atellica CH930 (Siemens, Germany), was introduced. It automatically measures internal quality control (QC) materials according to a pre-determined schedule. For this purpose, the instrument has space for storage of QC materials. We evaluated the analytical performance of chemistry items by using the Atellica system.
Methods: The precision of 29 items was evaluated with three levels of QC materials with two storage methods. We stored the QC materials in the dedicated storage space in the instrument during the precision evaluation period. In addition, we aliquoted and stored the materials in the refrigerator, and then loaded the material in a timely manner. Linearity, carry-over, and agreement with current methods were also evaluated.
Results: The within-laboratory coefficient of variation (CV) of most items, except for total CO2 (tCO2), was within 5.0% in both QC storage methods without significant differences in CV between storage methods. The CV of tCO2 was 5.2%, 5.8%, and 5.1% at three different levels when the QC materials were stored in a dedicated space in the instrument. The linearity was acceptable, showing <5% nonlinearity. Although good agreement was observed for most items, some items, such as calcium, total bilirubin, aspartate transaminase, and chloride, showed unequivalent results.
Conclusions: Atellica CH930 showed acceptable precision, linearity, and agreement in routine chemistry items. The automatic QC function using the storage device has no problem with stability or precision. It can reduce the manual process, allowing technicians to focus on reviewing the QC results and reporting reliable results.
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Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Laboratory Medicine (진단검사의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Daewon(김대원) ORCID logo https://orcid.org/0000-0002-3487-5943
Kim, Jeong Ho(김정호) ORCID logo https://orcid.org/0000-0003-2479-0548
Lee, Sang-Guk(이상국) ORCID logo https://orcid.org/0000-0003-3862-3660
Cho, Yonggeun(조용근) ORCID logo https://orcid.org/0000-0003-1946-4318
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